View source for 1930 United States Senate elections

{{Short description|none}}
{{Infobox election
| election_name = 1930 United States Senate elections
| country = United States
| flag_year = 1912
| type = legislative
| ongoing = no
| previous_election = 1928 United States Senate elections
| previous_year = 1928
| next_election = 1932 United States Senate elections
| next_year = 1932
| seats_for_election = 32 of the 96 seats in the [[United States Senate]]
| majority_seats = 49
| election_date = November 4, 1930
| elected_members = [[1931 United States Senate special election in Vermont|1931 (VT)]]
| image_size = x180px
| 1blank = Seats up
| 2blank = Races won
| party1 = Republican Party (US)
| leader1 = [[James Eli Watson|James Watson]]
| image1 = James Eli Watson.jpg
| leader_since1 = March 4, 1929
| leaders_seat1 = [[List of United States senators from Indiana|Indiana]]
| seats_before1 = '''56'''
| seats_after1 = '''48'''
| seat_change1 = {{Decrease}} 8
| 1data1 = '''22'''
| 2data1 = 14
| party2 = Democratic Party (US)
| leader2 = [[Joseph Taylor Robinson|Joseph Robinson]]
| leader_since2 = December 3, 1923
| image2 = Joseph T. Robinson cropped.jpg
| leaders_seat2 = [[List of United States senators from Arkansas|Arkansas]]
| seats_before2 = 39
| seats_after2 = 47
| seat_change2 = {{Increase}} 8
| 1data2 = 13
| 2data2 = '''21'''
| party4 = Farmer–Labor Party
| seats_before4 = 1
| seats_after4 = 1
| seat_change4 = {{Steady}}
| 1data4 = 0
| 2data4 = 0
| map_image = {{1930 United States Senate elections imagemap}}
| map_size = 320px
| map_caption = '''Results of the elections:'''<br/>{{Legend0|#0671B0|Democratic gain}} {{Legend0|#92C5DE|Democratic hold}}<br/>{{Legend0|#CA0120|Republican gain}} {{Legend0|#F48882|Republican hold}}<br/>{{Legend0|#D3D3D3|No election}}
| title = [[Majority Leader of the United States Senate|Majority Leader]]
| before_election = [[James Eli Watson|James Watson]]
| before_party = Republican Party (US)
| after_election = [[James Eli Watson|James Watson]]
| after_party = Republican Party (US)
}}
The '''1930 United States Senate elections''' occurred in the middle of [[Republican Party (United States)|Republican]] President [[Herbert Hoover]]'s term. The 32 seats of [[Classes of United States senators|Class 2]] were contested in regular elections, and special elections were held to fill vacancies. With the [[Great Depression]] beginning to take hold, Republican incumbents became unpopular,<ref>{{Cite news |date=November 6, 1930 |title=Republicans Lay Defeat to Slump |work=New York Times |url=https://www.nytimes.com/1930/11/06/archives/republicans-lay-defeat-to-slump-fess-emphasizes-crazy-quilt.html}}</ref> and [[Democratic Party (United States)|Democrats]] picked up a net of eight seats, erasing the Republican gains from the [[1928 United States Senate elections|previous election cycle]], however, Republicans retained control of the chamber. This was the first of four consecutive Senate elections during the Depression in which Democrats made enormous gains, achieving a cumulative pick-up of 34 seats.

In [[1930 United States Senate election in Louisiana|Louisiana]], Democratic senator-elect [[Huey Long]] chose not to take his Senate seat until January 25, 1932, so he could remain as [[Governor of Louisiana]]. The Republicans therefore retained the plurality of seats at the beginning of the next Congress (with Vice President [[Charles Curtis]] (R) able to cast [[List of tie-breaking votes cast by Vice Presidents of the United States|tie-breaking votes]], the Republicans would have majority control).

== Gains, losses, and holds ==
===Retirements=== 
Four Republicans retired instead of seeking re-election. Two Republicans retired instead of seeking election to finish the unexpired term and instead of seeking election to full term. One Democrat retired instead of seeking election to a full term.

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#Colorado|Colorado]]
| {{Party shading/Republican}} | {{sortname|Lawrence C.|Phipps}}
| {{Party shading/Democratic}} | {{sortname|Edward P.|Costigan}}
|-
! [[#Maine|Maine]]
| {{Party shading/Republican}} | {{sortname|Arthur R.|Gould}}
| {{Party shading/Republican}} | {{sortname|Wallace H.|White}}
|-
! [[#Massachusetts|Massachusetts]]
| {{Party shading/Republican}} | {{sortname|Frederick H.|Gillett}}
| {{Party shading/Democratic}} | {{sortname|Marcus A.|Coolidge}}
|-
! [[#New Jersey|New Jersey]]
| {{Party shading/Republican}} | {{sortname|David|Baird Jr.}}
| {{Party shading/Republican}} | {{sortname|Dwight|Morrow}}
|-
! [[#Tennessee (regular)|Tennessee (regular)]]
| {{Party shading/Democratic}} | {{sortname|William E.|Brock}}
| {{Party shading/Democratic}} | {{sortname|Cordell|Hull}}
|-
! [[#West Virginia|West Virginia]]
| {{Party shading/Republican}} | {{sortname|Guy D.|Goff}}
| {{Party shading/Democratic}} | {{sortname|Matthew M.|Neely}}
|-
! [[#Wyoming|Wyoming]]
| {{Party shading/Republican}} | {{sortname|Patrick J.|Sullivan|Patrick Joseph Sullivan}}
| {{Party shading/Republican}} | {{sortname|Robert D.|Carey}}
|}

===Defeats===
Seven Republicans and five Democrats sought re-election but lost in the primary or general election.

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#Alabama|Alabama]]
| {{Party shading/Democratic}} | {{sortname|J. Thomas|Heflin}}
| {{Party shading/Democratic}} | {{sortname|John H.|Bankhead II}}
|-
! [[#Illinois|Illinois]]
| {{Party shading/Republican}} | {{sortname|Charles S.|Deneen}}
| {{Party shading/Democratic}} | {{sortname|J. Hamilton|Lewis}}
|-
! [[#Iowa|Iowa]]
| {{Party shading/Democratic}} | {{sortname|Daniel F.|Steck}}
| {{Party shading/Republican}} | {{sortname|L. J.|Dickinson}}
|-
! [[#Kansas (special)|Kansas (special)]]
| {{Party shading/Republican}} | {{sortname|Henry J.|Allen}}
| {{Party shading/Democratic}} | {{sortname|George|McGill|dab=Kansas politician}}
|-
! [[#Kentucky (special)|Kentucky (special)]]
| {{Party shading/Republican}} | {{sortname|John M.|Robsion}}
| {{Party shading/Democratic}} | {{sortname|Ben M.|Williamson}}
|-
! [[#kentucky|Kentucky]]
| {{Party shading/Republican}} | {{sortname|John M.|Robsion}}
| {{Party shading/Democratic}} | {{sortname|M. M.|Logan}}
|-
! [[#Louisiana|Louisiana]]
| {{Party shading/Democratic}} | {{sortname|Joseph E.|Ransdell}}
| {{Party shading/Democratic}} | {{sortname|Huey|Long}}
|-
! [[#North Carolina|North Carolina]]
| {{Party shading/Democratic}} | {{sortname|F. M.|Simmons}}
| {{Party shading/Democratic}} | {{sortname|Josiah|Bailey}}
|-
! [[#Oklahoma|Oklahoma]]
| {{Party shading/Republican}} | {{sortname|William B.|Pine}}
| {{Party shading/Democratic}} | {{sortname|Thomas|Gore}}
|-
! [[#Ohio|Ohio]]
| {{Party shading/Republican}} | {{sortname|Roscoe C.|McCulloch}}
| {{Party shading/Democratic}} | {{sortname|Robert J.|Bulkley}}
|-
! [[#Pennsylvania|Pennsylvania]]
| {{Party shading/Republican}} | {{sortname|Joseph R.|Grundy}}
| {{Party shading/Republican}} | {{sortname|James J.|Davis}}
|-
! [[#South Carolina|South Carolina]]
| {{Party shading/Democratic}} | {{sortname|Cole L.|Blease}}
| {{Party shading/Democratic}} | {{sortname|James F.|Byrnes}}
|-
! [[#South Dakota|South Dakota]]
| {{Party shading/Republican}} | {{sortname|William H.|McMaster}}
| {{Party shading/Democratic}} | {{sortname|William J.|Bulow}}
|}

===Post-election changes===

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#New Jersey|New Jersey]]
| {{Party shading/Republican}} | {{sortname|Dwight|Morrow}}
| {{Party shading/Republican}} | {{sortname|W. Warren|Barbour}}
|-
! [[#Arkansas|Arkansas]]
| {{Party shading/Democratic}} | {{sortname|Thaddeus H.|Caraway}}
| {{Party shading/Democratic}} | {{sortname|Hattie|Caraway}}
|-
! [[#Georgia|Georgia]]
| {{Party shading/Democratic}} | {{sortname|William J.|Harris}}
| {{Party shading/Democratic}} | {{sortname|John S.|Cohen}}
|-
! [[#Georgia|Georgia]]
| {{Party shading/Democratic}} | {{sortname|John S.|Cohen}}
| {{Party shading/Democratic}} | {{sortname|Richard|Russell Jr.}}
|-
! [[#Vermont|Vermont]]
| {{Party shading/Republican}} | {{sortname|Frank C.|Partridge}}
| {{Party shading/Republican}} | {{sortname|Warren|Austin}}
|-
! [[#Missouri|Missouri]]
| {{Party shading/Democratic}} | {{sortname|Harry B.|Hawes}}
| {{Party shading/Democratic}} | {{sortname|Bennett|Champ Clark}}
|}

== Change in composition ==

=== Before the elections ===

{| class="wikitable" style="text-align:center" width=100%

|-
| colspan=2 | &nbsp;
| {{Party shading/Democratic}} | D{{Sub|1}}
| {{Party shading/Democratic}} | D{{Sub|2}}
| {{Party shading/Democratic}} | D{{Sub|3}}
| {{Party shading/Democratic}} | D{{Sub|4}}
| {{Party shading/Democratic}} | D{{Sub|5}}
| {{Party shading/Democratic}} | D{{Sub|6}}
| {{Party shading/Democratic}} | D{{Sub|7}}
| {{Party shading/Democratic}} | D{{Sub|8}}

|-
| width=10% {{Party shading/Democratic}} | D{{Sub|18}}
| width=10% {{Party shading/Democratic}} | D{{Sub|17}}
| width=10% {{Party shading/Democratic}} | D{{Sub|16}}
| width=10% {{Party shading/Democratic}} | D{{Sub|15}}
| width=10% {{Party shading/Democratic}} | D{{Sub|14}}
| width=10% {{Party shading/Democratic}} | D{{Sub|13}}
| width=10% {{Party shading/Democratic}} | D{{Sub|12}}
| width=10% {{Party shading/Democratic}} | D{{Sub|11}}
| width=10% {{Party shading/Democratic}} | D{{Sub|10}}
| width=10% {{Party shading/Democratic}} | D{{Sub|9}}

|-
| {{Party shading/Democratic}} | D{{Sub|19}}
| {{Party shading/Democratic}} | D{{Sub|20}}
| {{Party shading/Democratic}} | D{{Sub|21}}
| {{Party shading/Democratic}} | D{{Sub|22}}
| {{Party shading/Democratic}} | D{{Sub|23}}
| {{Party shading/Democratic}} | D{{Sub|24}}
| {{Party shading/Democratic}} | D{{Sub|25}}
| {{Party shading/Democratic}} | D{{Sub|26}}
| {{Party shading/Democratic/active}} | D{{Sub|27}}<br/>{{Small|[[#Alabama|{{Abbr|Ala.|Alabama}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|28}}<br/>{{Small|[[#Arkansas|{{Abbr|Ark.|Arkansas}}]]}}<br/>{{Small|Ran}}

|-
| {{Party shading/Democratic/active}} | D{{Sub|37}}<br/>{{Small|[[#Texas|Texas]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|39}}<br/>{{Small|[[#Tennessee (special)|{{Abbr|Tenn. (sp)|Tennessee (special)}}]]}}<br/>{{Small|Ran}}<hr/>{{Small|[[#Tennessee (Regular)|{{Abbr|Tenn. (reg)|Tennessee (Regular)}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Democratic/active}} | D{{Sub|36}}<br/>{{Small|[[#South Carolina|{{Abbr|S.C.|South Carolina}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|35}}<br/>{{Small|[[#North Carolina|{{Abbr|N.C.|North Carolina}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|34}}<br/>{{Small|[[#New Mexico|{{Abbr|N.M.|New Mexico}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|33}}<br/>{{Small|[[#Montana|{{Abbr|Mont.|Montana}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|32}}<br/>{{Small|[[#Mississippi|{{Abbr|Miss.|Mississippi}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|31}}<br/>{{Small|[[#Louisiana|{{Abbr|La.|Louisiana}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|30}}<br/>{{Small|[[#Iowa|Iowa]]}}<br/>{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|29}}<br/>{{Small|[[#Georgia|{{Abbr|Ga.|Georgia}}]]}}<br/>{{Small|Ran}}

|-
| {{Party shading/Democratic/active}} | D{{Sub|38}}<br/>{{Small|[[#Virginia|{{Abbr|Va.|Virginia}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Farmer–Labor}} | FL{{Sub|1}}
| {{Party shading/Republican/active}} | R{{Sub|56}}<br/>{{Small|[[#Wyoming (Regular)|{{Abbr|Wyo. (reg)|Wyoming (Regular)}}]]}}<br/>{{Small|[[#Wyoming (special)|{{Abbr|Wyo. (sp)|Wyoming (special)}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|55}}<br/>{{Small|[[#West Virginia|{{Abbr|W.Va.|West Virginia}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|54}}<br/>{{Small|[[#South Dakota|{{Abbr|S.D.|South Dakota}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|53}}<br/>{{Small|[[#Rhode Island|{{Abbr|R.I.|Rhode Island}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|52}}<br/>{{Small|[[#Pennsylvania (special)|{{Abbr|Pa. (sp)|Pennsylvania (special)}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|51}}<br/>{{Small|[[#Oregon|{{Abbr|Ore.|Oregon}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|50}}<br/>{{Small|[[#Oklahoma|{{Abbr|Okla.|Oklahoma}}]]}}<br/>{{Small|Ran}}
| rowspan=2 {{Party shading/Republican/active}} | R{{Sub|49}}<br/>{{Small|[[#Ohio (special)|Ohio (sp)]]}}<br/>{{Small|Ran}}

|-
| colspan=9 align=right | '''Majority →'''

|-
| {{Party shading/Republican/active}} | R{{Sub|39}}<br/>{{Small|[[#Kansas (Regular)|{{Abbr|Kan.|Kansas}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|40}}<br/>{{Small|[[#Kansas (special)|{{Abbr|Kan. (sp)|Kansas (special)}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|41}}<br/>{{Small|[[#Kentucky (Regular)|{{Abbr|Ky.|Kentucky}}]]}}<br/>{{Small|[[#Kentucky (special)|{{Abbr|Ky. (sp)|Kentucky)}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|42}}<br/>{{Small|[[#Maine|Maine]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|43}}<br/>{{Small|[[#Massachusetts|{{Abbr|Mass.|Massachusetts}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|44}}<br/>{{Small|[[#Michigan|{{Abbr|Mich.|Michigan}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|45}}<br/>{{Small|[[#Minnesota|{{Abbr|Minn.|Minnesota}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|46}}<br/>{{Small|[[#Nebraska|{{Abbr|Neb.|Nebraska}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|47}}<br/>{{Small|[[#New Hampshire|{{Abbr|N.H.|New Hampshire}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|48}}<br/>{{Small|[[#New Jersey (Regular)|{{Abbr|N.J.|New Jersey}}]]}}<br/>{{Small|[[#New Jersey (special)|{{Abbr|N.J. (sp)|New Jersey (special)}}]]}}<br/>{{Small|Retired}}

|-
| {{Party shading/Republican/active}} | R{{Sub|38}}<br/>{{Small|[[#Illinois|{{Abbr|Ill.|Illinois}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|37}}<br/>{{Small|[[#Idaho|Idaho]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|36}}<br/>{{Small|[[#Delaware (Regular)|{{Abbr|Del. (reg)|Delaware (Regular)}}]]}}<br/>{{Small|[[#Delaware (special)|{{Abbr|Del. (sp)|Delaware (special)}}]]}}<br/>{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|35}}<br/>{{Small|[[#Colorado|{{Abbr|Colo.|Colorado}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican}} | R{{Sub|34}}
| {{Party shading/Republican}} | R{{Sub|33}}
| {{Party shading/Republican}} | R{{Sub|32}}
| {{Party shading/Republican}} | R{{Sub|31}}
| {{Party shading/Republican}} | R{{Sub|30}}
| {{Party shading/Republican}} | R{{Sub|29}}

|-
| {{Party shading/Republican}} | R{{Sub|19}}
| {{Party shading/Republican}} | R{{Sub|20}}
| {{Party shading/Republican}} | R{{Sub|21}}
| {{Party shading/Republican}} | R{{Sub|22}}
| {{Party shading/Republican}} | R{{Sub|23}}
| {{Party shading/Republican}} | R{{Sub|24}}
| {{Party shading/Republican}} | R{{Sub|25}}
| {{Party shading/Republican}} | R{{Sub|26}}
| {{Party shading/Republican}} | R{{Sub|27}}
| {{Party shading/Republican}} | R{{Sub|28}}

|-
| {{Party shading/Republican}} | R{{Sub|18}}
| {{Party shading/Republican}} | R{{Sub|17}}
| {{Party shading/Republican}} | R{{Sub|16}}
| {{Party shading/Republican}} | R{{Sub|15}}
| {{Party shading/Republican}} | R{{Sub|14}}
| {{Party shading/Republican}} | R{{Sub|13}}
| {{Party shading/Republican}} | R{{Sub|12}}
| {{Party shading/Republican}} | R{{Sub|11}}
| {{Party shading/Republican}} | R{{Sub|10}}
| {{Party shading/Republican}} | R{{Sub|9}}

|-
| colspan=2 |
| {{Party shading/Republican}} | R{{Sub|1}}
| {{Party shading/Republican}} | R{{Sub|2}}
| {{Party shading/Republican}} | R{{Sub|3}}
| {{Party shading/Republican}} | R{{Sub|4}}
| {{Party shading/Republican}} | R{{Sub|5}}
| {{Party shading/Republican}} | R{{Sub|6}}
| {{Party shading/Republican}} | R{{Sub|7}}
| {{Party shading/Republican}} | R{{Sub|8}}

|}

=== After the elections ===
{| class="wikitable" style="text-align:center" width=100%

|-
| colspan=2 | &nbsp;
| {{Party shading/Democratic}} | D{{Sub|1}}
| {{Party shading/Democratic}} | D{{Sub|2}}
| {{Party shading/Democratic}} | D{{Sub|3}}
| {{Party shading/Democratic}} | D{{Sub|4}}
| {{Party shading/Democratic}} | D{{Sub|5}}
| {{Party shading/Democratic}} | D{{Sub|6}}
| {{Party shading/Democratic}} | D{{Sub|7}}
| {{Party shading/Democratic}} | D{{Sub|8}}

|-
| width=10% {{Party shading/Democratic}} | D{{Sub|18}}
| width=10% {{Party shading/Democratic}} | D{{Sub|17}}
| width=10% {{Party shading/Democratic}} | D{{Sub|16}}
| width=10% {{Party shading/Democratic}} | D{{Sub|15}}
| width=10% {{Party shading/Democratic}} | D{{Sub|14}}
| width=10% {{Party shading/Democratic}} | D{{Sub|13}}
| width=10% {{Party shading/Democratic}} | D{{Sub|12}}
| width=10% {{Party shading/Democratic}} | D{{Sub|11}}
| width=10% {{Party shading/Democratic}} | D{{Sub|10}}
| width=10% {{Party shading/Democratic}} | D{{Sub|9}}

|-
| {{Party shading/Democratic}} | D{{Sub|19}}
| {{Party shading/Democratic}} | D{{Sub|20}}
| {{Party shading/Democratic}} | D{{Sub|21}}
| {{Party shading/Democratic}} | D{{Sub|22}}
| {{Party shading/Democratic}} | D{{Sub|23}}
| {{Party shading/Democratic}} | D{{Sub|24}}
| {{Party shading/Democratic}} | D{{Sub|25}}
| {{Party shading/Democratic}} | D{{Sub|26}}
| {{Party shading/Democratic/active}} | D{{Sub|27}}<br/>{{Small|[[#Alabama|{{Abbr|Ala.|Alabama}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|28}}<br/>{{Small|[[#Arkansas|{{Abbr|Ark.|Arkansas}}]]}}<br/>{{Small|Re-elected}}
|-
| {{Party shading/Democratic/active}} | D{{Sub|38}}<br/>{{Small|[[#Virginia|{{Abbr|Va.|Virginia}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|37}}<br/>{{Small|[[#Texas|Texas]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|36}}<br/>{{Small|[[#Tennessee (special)|{{Abbr|Tenn. (sp)|Tennessee (special)}}]]}}<br/>{{Small|Elected{{Efn|name="Appointee elected"}}}}<hr/>{{Small|[[#Tennessee (Regular)|{{Abbr|Tenn. (reg)|Tennessee (Regular)}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|35}}<br/>{{Small|[[#South Carolina|{{Abbr|S.C.|South Carolina}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|34}}<br/>{{Small|[[#North Carolina|{{Abbr|N.C.|North Carolina}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|33}}<br/>{{Small|[[#New Mexico|{{Abbr|N.M.|New Mexico}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|32}}<br/>{{Small|[[#Montana|{{Abbr|Mont.|Montana}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|31}}<br/>{{Small|[[#Mississippi|{{Abbr|Miss.|Mississippi}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|30}}<br/>{{Small|[[#Louisiana|{{Abbr|La.|Louisiana}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|29}}<br/>{{Small|[[#Georgia|{{Abbr|Ga.|Georgia}}]]}}<br/>{{Small|Re-elected}}
|-
| {{Party shading/Democratic/active}} | D{{Sub|39}}<br/>{{Small|[[#Colorado|{{Abbr|Colo.|Colorado}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|40}}<br/>{{Small|[[#Illinois|{{Abbr|Ill.|Illinois}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|41}}<br/>{{Small|[[#Kansas (special)|{{Abbr|Kan. (sp)|Kansas (special)}}]]}}<br/>{{Small|Gain}}{{efn|name=Appointee defeated|Appointee defeated}}
| {{Party shading/Democratic/active}} | D{{Sub|42}}<br/>{{Small|[[#Kentucky (Regular)|{{Abbr|Ky. (reg)|Kentucky (Regular)}}]]}}<br/>{{Small|[[#Kentucky (special)|{{Abbr|Ky. (sp)|Kentucky)}}]]}}<br/>{{Small|Gain}}{{efn|name=Appointee defeated}}
| {{Party shading/Democratic/active}} | D{{Sub|43}}<br/>{{Small|[[#Massachusetts|{{Abbr|Mass.|Massachusetts}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|44}}<br/>{{Small|[[#Ohio (special)|Ohio (sp)]]}}<br/>{{Small|Gain}}{{efn|name=Appointee defeated}}
| {{Party shading/Democratic/active}} | D{{Sub|45}}<br/>{{Small|[[#Oklahoma|{{Abbr|Okla.|Oklahoma}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|46}}<br/>{{Small|[[#South Dakota|{{Abbr|S.D.|South Dakota}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|47}}<br/>{{Small|[[#West Virginia|{{Abbr|W.Va.|West Virginia}}]]}}<br/>{{Small|Gain}}
| {{Party shading/Farmer–Labor}} | FL{{Sub|1}}
<!--GOP caucus-->
|-
| colspan=10 align=right | '''Majority with Republican vice president ↓'''
|-
| {{Party shading/Republican/active}} | R{{Sub|39}}<br/>{{Small|[[#Michigan|{{Abbr|Mich.|Michigan}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|40}}<br/>{{Small|[[#Minnesota|{{Abbr|Minn.|Minnesota}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|41}}<br/>{{Small|[[#Nebraska|{{Abbr|Neb.|Nebraska}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|42}}<br/>{{Small|[[#New Hampshire|{{Abbr|N.H.|New Hampshire}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|43}}<br/>{{Small|[[#New Jersey (Regular)|{{Abbr|N.J. (reg)|New Jersey (Regular)}}]]}}<br/>{{Small|[[#New Jersey (special)|{{Abbr|N.J. (sp)|New Jersey (special)}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Republican/active}} | R{{Sub|44}}<br/>{{Small|[[#Oregon|{{Abbr|Ore.|Oregon}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|45}}<br/>{{Small|[[#Pennsylvania (special)|{{Abbr|Pa. (sp)|Pennsylvania (special)}}]]}}<br/>{{Small|Hold}}
| {{Party shading/Republican/active}} | R{{Sub|46}}<br/>{{Small|[[#Rhode Island|{{Abbr|R.I.|Rhode Island}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|47}}<br/>{{Small|[[#Wyoming (Regular)|{{Abbr|Wyo. (reg)|Wyoming (Regular)}}]]}}<br/>{{Small|[[#Wyoming (special)|{{Abbr|Wyo. (sp)|Wyoming (special)}}]]}}<br/>{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|48}}<br/>{{Small|[[#Iowa|Iowa]]}}<br/>{{Small|Gain}}
|-
| {{Party shading/Republican/active}} | R{{Sub|38}}<br/>{{Small|[[#Maine|Maine]]}}<br/>{{Small|Hold}}
| {{Party shading/Republican/active}} | R{{Sub|37}}<br/>{{Small|[[#Kansas (Regular)|{{Abbr|Kan. (reg)|Kansas (Regular)}}]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|36}}<br/>{{Small|[[#Idaho|Idaho]]}}<br/>{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|35}}<br/>{{Small|[[#Delaware (Regular)|{{Abbr|Del. (reg)|Delaware (Regular)}}]]}}<br/>{{Small|[[#Delaware (special)|{{Abbr|Del. (sp)|Delaware (special)}}]]}}<br/>{{Small|Elected{{Efn|name="Appointee elected"|Appointee elected}}}}
| {{Party shading/Republican}} | R{{Sub|34}}
| {{Party shading/Republican}} | R{{Sub|33}}
| {{Party shading/Republican}} | R{{Sub|32}}
| {{Party shading/Republican}} | R{{Sub|31}}
| {{Party shading/Republican}} | R{{Sub|30}}
| {{Party shading/Republican}} | R{{Sub|29}}
|-
| {{Party shading/Republican}} | R{{Sub|19}}
| {{Party shading/Republican}} | R{{Sub|20}}
| {{Party shading/Republican}} | R{{Sub|21}}
| {{Party shading/Republican}} | R{{Sub|22}}
| {{Party shading/Republican}} | R{{Sub|23}}
| {{Party shading/Republican}} | R{{Sub|24}}
| {{Party shading/Republican}} | R{{Sub|25}}
| {{Party shading/Republican}} | R{{Sub|26}}
| {{Party shading/Republican}} | R{{Sub|27}}
| {{Party shading/Republican}} | R{{Sub|28}}
|-
| {{Party shading/Republican}} | R{{Sub|18}}
| {{Party shading/Republican}} | R{{Sub|17}}
| {{Party shading/Republican}} | R{{Sub|16}}
| {{Party shading/Republican}} | R{{Sub|15}}
| {{Party shading/Republican}} | R{{Sub|14}}
| {{Party shading/Republican}} | R{{Sub|13}}
| {{Party shading/Republican}} | R{{Sub|12}}
| {{Party shading/Republican}} | R{{Sub|11}}
| {{Party shading/Republican}} | R{{Sub|10}}
| {{Party shading/Republican}} | R{{Sub|9}}
|-
| colspan=2 |
| {{Party shading/Republican}} | R{{Sub|1}}
| {{Party shading/Republican}} | R{{Sub|2}}
| {{Party shading/Republican}} | R{{Sub|3}}
| {{Party shading/Republican}} | R{{Sub|4}}
| {{Party shading/Republican}} | R{{Sub|5}}
| {{Party shading/Republican}} | R{{Sub|6}}
| {{Party shading/Republican}} | R{{Sub|7}}
| {{Party shading/Republican}} | R{{Sub|8}}
|}

{|
|- valign=top
! Key
|
{| class=wikitable
|-
| align=center {{Party shading/Democratic}} | D{{Sub|#}}
| [[Democratic Party (United States)|Democratic]]
|-
| align=center {{Party shading/Farmer–Labor}} | FL{{Sub|#}}
| [[Farmer–Labor Party (United States)|Farmer–Labor]]
|-
| align=center {{Party shading/Republican}} | R{{Sub|#}}
| [[Republican Party (United States)|Republican]]
|}
|}

== Race summary ==

=== Special elections during the 71st Congress ===
In these special elections, the winner were seated during 1930; ordered by election date (then by state).

{| class=wikitable

|- valign=bottom
! rowspan=2 | State
! colspan=3 | Incumbent
! rowspan=2 | Results
! rowspan=2 | Candidates

|- valign=bottom
! Senator
! Party
! Electoral history

|-
! [[#Delaware (special)|Delaware]]<br/>(Class 2)
| [[Daniel O. Hastings]]
| {{Party shading/Republican}} | Republican
| 1928 {{Small|(Appointed)}}
| Interim appointee [[1930 United States Senate special election in Delaware|elected]] '''November 4, 1930'''.<br/>Winner was also elected on the same ballot to the next term; see below.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Daniel O. Hastings]]''' (Republican) 54.5%
* {{Party stripe|Democratic Party (US)}}[[Thomas F. Bayard Jr.]] (Democratic) 45.4%
}}

|-
! [[#Kansas (special)|Kansas]]<br/>(Class 3)
| [[Henry J. Allen]]
| {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Democratic}} | Interim appointee lost election.<br/>New senator [[1930 United States Senate special election in Kansas|elected]] '''November 4, 1930'''.<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[George McGill (Kansas politician)|George McGill]]''' (Democratic) 50.0%
* {{Party stripe|Republican Party (US)}}[[Henry J. Allen]] (Republican) 48.0%
}}

|-
! [[#Kentucky (special)|Kentucky]]<br/>(Class 2)
| [[John M. Robsion]]
| {{Party shading/Republican}} | Republican
| 1930 {{Small|(Appointed)}}
| {{Party shading/Democratic}} | Interim appointee lost election.<br/>New senator [[1930 United States Senate special election in Kentucky|elected]] '''November 4, 1930'''.<br/>'''Democratic gain'''.<br/>Winner was not elected to the next term; see below.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Ben M. Williamson]]''' (Democratic) 52.3%
* {{Party stripe|Republican Party (US)}}[[John M. Robsion]] (Republican) 47.7%<ref name="Kentucky">{{Cite web |title= Kentucky Senate Class II - History |url=https://www.ourcampaigns.com/ContainerHistory.html?ContainerID=180 |access-date=June 19, 2020 |website=www.ourcampaigns.com}}</ref>
}}

|-
! [[#New Jersey (special)|New Jersey]]<br/>(Class 2)
| [[David Baird Jr.]]
| {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Interim appointee retired.<br/>New senator [[1930 United States Senate special election in New Jersey|elected]] '''November 4, 1930'''.<br/>Republican hold.<br/>Winner also elected to the next term, see below.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Dwight Morrow]]''' (Republican) 59.1%
* {{Party stripe|Democratic Party (US)}}[[Alexander Simpson (politician)|Alexander Simpson]] (Democratic) 38.6%<ref name="New Jersey" />
}}

|-
! [[#Ohio (special)|Ohio]]<br/>(Class 3)
| [[Roscoe C. McCulloch]]
| {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Democratic}} | Interim appointee lost election.<br/>New senator [[1930 United States Senate special election in Ohio|elected]] '''November 4, 1930'''.<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Robert J. Bulkley]]''' (Democratic) 54.8%
* {{Party stripe|Republican Party (US)}}[[Roscoe C. McCulloch]] (Republican) 45.2%
}}

|-
! [[#Pennsylvania (special)|Pennsylvania]]<br/>(Class 3)
| [[Joseph R. Grundy]]
| {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Interim appointee lost nomination.<br/>New senator [[1930 United States Senate special election in Pennsylvania|elected]] '''November 4, 1930'''.<br/>Republican hold.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[James J. Davis]]''' (Republican) 71.5%
* {{Party stripe|Democratic Party (US)}}[[Sedgwick Kistler]] (Democratic) 25.6%
}}

|-
! [[#Tennessee (special)|Tennessee]]<br/>(Class 2)
| [[William E. Brock]]
| {{Party shading/Democratic}} | Democratic
| 1929 {{Small|(Appointed)}}
| Interim appointee [[1930 United States Senate special election in Tennessee|elected]] '''November 4, 1930'''.<br/>Winner was not elected to the next term; see below.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[William E. Brock]]''' (Democratic) 74.4%
* {{Party stripe|Republican Party (US)}}[[F. Todd Meacham]] (Republican) 25.63%<ref name="Tennessee">{{Cite web |title= Tennessee Class II |url=https://www.ourcampaigns.com/ContainerHistory.html?ContainerID=168 |access-date=2020-09-25 |website=www.ourcampaigns.com}}</ref>
}}

|-
! [[#Wyoming (special)|Wyoming]]<br/>(Class 2)
| rowspan=2 | [[Patrick Joseph Sullivan|Patrick J. Sullivan]]
| rowspan=2 {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Interim appointee retired.<br/>New senator [[1930 United States Senate special election in Wyoming|elected]] '''November 4, 1930'''.<br/>Republican hold.<br/>Winner also elected to the next term; see below.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Robert D. Carey]]''' (Republican) 58.8%
* {{Party stripe|Democratic Party (US)}}[[Harry Schwartz (U.S. senator)|Harry Schwartz]] (Democratic) 41.2%<ref name="WyomingSp">{{Cite web |title= Wyoming Class II  |url=https://www.ourcampaigns.com/ContainerHistory.html?ContainerID=299 |access-date=2020-09-25 |website=www.ourcampaigns.com}}</ref>
}}

|}

=== Elections leading to the 72nd Congress ===
In these general elections, the winners were elected for the term beginning March 4, 1931; ordered by state.

All of the elections involved the Class 2 seats.

{| class=wikitable

|- valign=bottom
! rowspan=2 | State
! colspan=3 | Incumbent
! rowspan=2 | Results
! rowspan=2 | Candidates

|- valign=bottom
! Senator
! Party
! Electoral history

|-
! [[#Alabama|Alabama]]
| [[J. Thomas Heflin]]
| {{Party shading/Democratic}} | Democratic
| [[1920 United States Senate special election in Alabama|1920 {{Small|(special)}}]]<br/>[[1924 United States Senate election in Alabama|1924]]
| {{Party shading/Democratic/Hold}} | Incumbent lost renomination.<br/>Incumbent lost general election as an [[Independent politician|independent]].<br/>New senator [[1930 United States Senate election in Alabama|elected]].<br/>Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[John H. Bankhead II]]''' (Democratic) 59.7%
* {{Party stripe|Independent}}[[J. Thomas Heflin]] (Independent) 40.3%
}}

|-
! [[#Arkansas|Arkansas]]
| [[Joseph T. Robinson]]
| {{Party shading/Democratic}} | Democratic
| [[1913 United States Senate election in Arkansas|1913]]<br/>[[1918 United States Senate election in Arkansas|1918]]<br/>[[1924 United States Senate election in Arkansas|1924]]
| Incumbent [[1930 United States Senate election in Arkansas|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Joseph T. Robinson]]''' (Democratic)
* ''Unopposed''
}}

|-
! [[#Colorado|Colorado]]
| [[Lawrence C. Phipps]]
| {{Party shading/Republican}} | Republican
| [[1918 United States Senate election in Colorado|1918]]<br/>[[1924 United States Senate election in Colorado|1924]]
| {{Party shading/Democratic}} | Incumbent retired.<br/>New senator [[1930 United States Senate election in Colorado|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Edward P. Costigan]]''' (Democratic) 55.9%
* {{Party stripe|Republican Party (US)}}[[George H. Shaw]] (Republican) 42.7%
}}

|-
! [[#Delaware (Regular)|Delaware]]
| [[Daniel O. Hastings]]
| {{Party shading/Republican}} | Republican
| 1928 {{Small|(Appointed)}}
| Interim appointee [[1930 United States Senate election in Delaware|elected]].<br/>Winner was also elected on the same ballot to finish the current term; see above.
| nowrap | {{Plainlist|
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Daniel O. Hastings]]''' (Republican) 54.5%
* {{Party stripe|Democratic Party (US)}}[[Thomas F. Bayard Jr.]] (Democratic) 45.4%
}}

|-
! [[#Georgia|Georgia]]
| [[William J. Harris]]
| {{Party shading/Democratic}} | Democratic
| [[1918 United States Senate election in Georgia|1918]]<br/>[[1924 United States Senate election in Georgia|1924]]
| Incumbent [[1930 United States Senate election in Georgia|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[William J. Harris]]''' (Democratic)
* ''Unopposed''
}}

|-
! [[#Idaho|Idaho]]
| [[William Borah]]
| {{Party shading/Republican}} | Republican
| [[1907 United States Senate election in Idaho|1907]]<br/>[[1913 United States Senate election in Idaho|1913]]<br/>[[1918 United States Senate election in Idaho|1918]]<br/>[[1924 United States Senate election in Idaho|1924]]
| Incumbent [[1930 United States Senate election in Idaho|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[William Borah]]''' (Republican)72.4%
* {{Party stripe|Democratic Party (US)}}[[Joseph M. Tyler]] (Democratic) 27.6%
}}

|-
! [[#Illinois|Illinois]]
| [[Charles S. Deneen]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in Illinois|1924]]<br/>1925 {{Small|(Appointed)}}{{Efn|Appointed in February 1925, having already been elected in 1924 to begin the March term.}}
| {{Party shading/Democratic}} | Incumbent lost renomination.<br/>New senator [[1930 United States Senate election in Illinois|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[J. Hamilton Lewis]]''' (Democratic) 64.0%
* {{Party stripe|Republican Party (US)}}[[Ruth Hanna McCormick]] (Republican) 30.7%
}}

|-
! [[#Iowa|Iowa]]
| [[Daniel F. Steck]]
| {{Party shading/Democratic}} | Democratic
| [[1924 United States Senate election in Iowa|1926 {{Small|(Challenge)}}]]
| {{Party shading/Republican}} | Incumbent lost re-election.<br/>New senator [[1930 United States Senate election in Iowa|elected]].<br/>'''Republican gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[L. J. Dickinson]]''' (Republican) 56.3%
* {{Party stripe|Democratic Party (US)}}[[Daniel F. Steck]] (Democratic) 43.0%
}}

|-
! [[#Kansas (Regular)|Kansas]]
| [[Arthur Capper]]
| {{Party shading/Republican}} | Republican
| [[1918 United States Senate election in Kansas|1918]]<br/>[[1924 United States Senate election in Kansas|1924]]
| Incumbent [[1930 United States Senate election in Kansas|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Arthur Capper]]''' (Republican) 61.1%
* {{Party stripe|Democratic Party (US)}}[[Jonathan M. Davis]] (Democratic) 38.9%
}}

|-
! [[#Kentucky (Regular)|Kentucky]]
| [[John M. Robsion]]
| {{Party shading/Republican}} | Republican
| 1930 {{Small|(Appointed)}}
| {{Party shading/Democratic}} | Interim appointee lost election.<br/>New senator [[1930 United States Senate election in Kentucky|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[M. M. Logan]]''' (Democratic) 52.1%
* {{Party stripe|Republican Party (US)}}[[John M. Robsion]] (Republican) 47.9%<ref name="Kentucky" />
}}

|-
! [[#Louisiana|Louisiana]]
| [[Joseph E. Ransdell]]
| {{Party shading/Democratic}} | Democratic
| [[1912 United States Senate elections in Louisiana|1912]]<br/>[[1918 United States Senate election in Louisiana|1918]]<br/>[[1924 United States Senate election in Louisiana|1924]]
| {{Party shading/Democratic/Hold}} | Incumbent lost renomination.<br/>New senator [[1930 United States Senate election in Louisiana|elected]].<br/>Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Huey Long]]''' (Democratic)
* ''Unopposed''
}}

|-
! [[#Maine|Maine]]
| [[Arthur R. Gould]]
| {{Party shading/Republican}} | Republican
| 1926 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Incumbent retired.<br/>New senator [[1930 United States Senate election in Maine|elected]].<br/>Republican hold.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Wallace H. White]]''' (Republican) 60.9%
* {{Party stripe|Democratic Party (US)}}Frank W. Haskell (Democratic) 39.1%
}}

|-
! [[#Massachusetts|Massachusetts]]
| [[Frederick H. Gillett]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in Massachusetts|1924]]
| {{Party shading/Democratic}} | Incumbent retired.<br/>New senator [[1930 United States Senate election in Massachusetts|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Marcus A. Coolidge]]''' (Democratic) 54.0%
* {{Party stripe|Republican Party (US)}}[[William M. Butler]] (Republican) 44.7%
}}

|-
! [[#Michigan|Michigan]]
| [[James Couzens]]
| {{Party shading/Republican}} | Republican
| 1922 {{Small|(Appointed)}}<br/>[[1924 United States Senate special election in Michigan|1924 {{Small|(special)}}]]<br/>[[1924 United States Senate election in Michigan|1924]]
| Incumbent [[1930 United States Senate election in Michigan|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[James Couzens]]''' (Republican) 78.2%
* {{Party stripe|Democratic Party (US)}}[[Thomas A. E. Weadock]] (Democratic) 20.9%
}}

|-
! [[#Minnesota|Minnesota]]
| [[Thomas D. Schall]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in Minnesota|1924]]
| Incumbent [[1930 United States Senate election in Minnesota|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Thomas D. Schall]]''' (Republican) 37.6%
* {{Party stripe|Democratic Party (US)}}[[Einar Hoidale]] (Democratic) 36.1%
* {{Party stripe|Farmer–Labor Party}}[[Ernest Lundeen]] (Farmer–Labor) 22.9%
}}

|-
! [[#Mississippi|Mississippi]]
| [[Pat Harrison]]
| {{Party shading/Democratic}} | Democratic
| [[1918 United States Senate election in Mississippi|1918]]<br/>[[1924 United States Senate election in Mississippi|1924]]
| Incumbent [[1930 United States Senate election in Mississippi|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Pat Harrison]]''' (Democratic)
* ''Unopposed''
}}

|-
! [[#Montana|Montana]]
| [[Thomas J. Walsh]]
| {{Party shading/Democratic}} | Democratic
| [[1913 United States Senate election in Montana|1913]]<br/>[[1918 United States Senate election in Montana|1918]]<br/>[[1924 United States Senate election in Montana|1924]]
| Incumbent [[1930 United States Senate election in Montana|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Thomas J. Walsh]]''' (Democratic) 60.3%
* {{Party stripe|Republican Party (US)}}[[Albert J. Galen]] (Republican) 37.9%
}}

|-
! [[#Nebraska|Nebraska]]
| [[George W. Norris]]
| {{Party shading/Republican}} | Republican
| [[1913 United States Senate election in Nebraska|1913]]<br/>[[1918 United States Senate election in Nebraska|1918]]<br/>[[1924 United States Senate election in Nebraska|1924]]
| Incumbent [[1930 United States Senate election in Nebraska|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[George W. Norris]]''' (Republican) 56.8%
* {{Party stripe|Democratic Party (US)}}[[Gilbert Hitchcock]] (Democratic) 39.7%
}}

|-
! [[#New Hampshire|New Hampshire]]
| [[Henry W. Keyes]]
| {{Party shading/Republican}} | Republican
| [[1918 United States Senate election in New Hampshire|1918]]<br/>[[1924 United States Senate election in New Hampshire|1924]]
| Incumbent [[1930 United States Senate election in New Hampshire|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Henry W. Keyes]]''' (Republican) 57.9%
* {{Party stripe|Democratic Party (US)}}[[Albert W. Noone]] (Democratic) 41.9%
}}

|-
! [[#New Jersey (Regular)|New Jersey]]
| [[David Baird Jr.]]
| {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Interim appointee retired.<br/>New senator [[1930 United States Senate election in New Jersey|elected]].<br/>Republican hold.<br/>Winner also elected to finish the term; see above.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Dwight Morrow]]''' (Republican) 58.5%
* {{Party stripe|Democratic Party (US)}}[[Alexander Simpson (politician)|Alexander Simpson]] (Democratic) 39.0%<ref name="New Jersey">{{Cite web |title= New Jersey Class II |url=https://www.ourcampaigns.com/ContainerHistory.html?ContainerID=124 |access-date=2020-09-25 |website=www.ourcampaigns.com}}</ref>
}}

|-
! [[#New Mexico|New Mexico]]
| [[Sam G. Bratton]]
| {{Party shading/Democratic}} | Democratic
| [[1924 United States Senate election in New Mexico|1924]]
| Incumbent [[1930 United States Senate election in New Mexico|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Sam G. Bratton]]''' (Democratic) 58.6%
* {{Party stripe|Republican Party (US)}}[[Herbert B. Holt]] (Republican) 41.2%
}}

|-
! [[#North Carolina|North Carolina]]
| [[F. M. Simmons]]
| {{Party shading/Democratic}} | Democratic
| [[1901 United States Senate election in North Carolina|1901]]<br/>[[1907 United States Senate election in North Carolina|1907]]<br/>[[1913 United States Senate election in North Carolina|1913]]<br/>[[1918 United States Senate election in North Carolina|1918]]<br/>[[1924 United States Senate election in North Carolina|1924]]
| {{Party shading/Democratic/Hold}} | Incumbent lost renomination.<br/>New senator [[1930 United States Senate election in North Carolina|elected]].<br/>Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Josiah Bailey]]''' (Democratic) 60.6%
* {{Party stripe|Republican Party (US)}}[[George M. Pritchard]] (Republican) 39.4%
}}

|-
! [[#Oklahoma|Oklahoma]]
| [[William B. Pine]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in Oklahoma|1924]]
| {{Party shading/Democratic}} | Incumbent lost re-election.<br/>New senator [[1930 United States Senate election in Oklahoma|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Thomas Gore]]''' (Democratic) 52.3%
* {{Party stripe|Republican Party (US)}}[[William B. Pine]] (Republican) 47.5%
}}

|-
! [[#Oregon|Oregon]]
| [[Charles L. McNary]]
| {{Party shading/Republican}} | Republican
| 1917 {{Small|(Appointed)}}<br/>1918 {{Small|(Not elected)}}<br/>1918 {{Small|(Appointed)}}<br/>[[1918 United States Senate election in Oregon|1918]]<br/>[[1924 United States Senate election in Oregon|1924]]
| Incumbent [[1930 United States Senate election in Oregon|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Charles L. McNary]]''' (Republican) 58.1%
* {{Party stripe|Democratic Party (US)}}[[Elton Watkins]] (Democratic) 27.9%
* {{Party stripe|Independent}}[[Leslie Esdaile Banks|L. A. Banks]] (Independent) 7.4%
}}

|-
! [[#Rhode Island|Rhode Island]]
| [[Jesse H. Metcalf]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate special election in Rhode Island|1924 {{Small|(special)}}]]<br/>[[1924 United States Senate election in Rhode Island|1924]]
| Incumbent [[1930 United States Senate election in Rhode Island|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Jesse H. Metcalf]]''' (Republican) 50.3%
* {{Party stripe|Democratic Party (US)}}[[Peter G. Gerry]] (Democratic) 49.2%
}}

|-
! [[#South Carolina|South Carolina]]
| [[Cole L. Blease]]
| {{Party shading/Democratic}} | Democratic
| [[1924 United States Senate election in South Carolina|1924]]
| {{Party shading/Democratic/Hold}} | Incumbent lost renomination.<br/>New senator [[1930 United States Senate election in South Carolina|elected]].<br/>Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[James F. Byrnes]]''' (Democratic)
* ''Unopposed''
}}

|-
! [[#South Dakota|South Dakota]]
| [[William H. McMaster]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in South Dakota|1924]]
| {{Party shading/Democratic}} | Incumbent lost re-election.<br/>New senator [[1930 United States Senate election in South Dakota|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[William J. Bulow]]''' (Democratic) 51.6%
* {{Party stripe|Republican Party (US)}}[[William H. McMaster]] (Republican) 48.4%
}}

|-
! [[#Tennessee (Regular)|Tennessee]]
| [[William E. Brock]]
| {{Party shading/Democratic}} | Democratic
| 1929 {{Small|(Appointed)}}
| {{Party shading/Democratic/Hold}} | Incumbent retired.<br/>New senator [[1930 United States Senate election in Tennessee|elected]].<br/>Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Cordell Hull]]''' (Democratic) 71.3%
* {{Party stripe|Republican Party (US)}}[[Paul E. Divine]] (Republican) 27.1%
}}

|-
! [[#Texas|Texas]]
| [[Morris Sheppard]]
| {{Party shading/Democratic}} | Democratic
| [[1913 United States Senate special election in Texas|1913 {{Small|(special)}}]]<br/>[[1913 United States Senate election in Texas|1913]]<br/>[[1918 United States Senate election in Texas|1918]]<br/>[[1924 United States Senate election in Texas|1924]]
| Incumbent [[1930 United States Senate election in Texas|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Morris Sheppard]]''' (Democratic) 86.9%
* {{Party stripe|Republican Party (US)}}[[D. J. Haesly]] (Republican) 12.7%
}}

|-
! [[#Virginia|Virginia]]
| [[Carter Glass]]
| {{Party shading/Democratic}} | Democratic
| 1920 {{Small|(Appointed)}}<br/>[[1920 United States Senate special election in Virginia|1920 {{Small|(special)}}]]<br/>[[1924 United States Senate election in Virginia|1924]]
| Incumbent [[1930 United States Senate election in Virginia|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Carter Glass]]''' (Democratic) 76.7%
* {{Party stripe|Independent}}[[J. Cloyd Byars]] (Independent) 17.9%
* {{Party stripe|Socialist Party (US)}}[[Joe C. Morgan]] (Socialist) 5.4%
}}

|-
! [[#West Virginia|West Virginia]]
| [[Guy D. Goff]]
| {{Party shading/Republican}} | Republican
| [[1924 United States Senate election in West Virginia|1924]]
| {{Party shading/Democratic}} | Incumbent retired.<br/>New senator [[1930 United States Senate election in West Virginia|elected]].<br/>'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Matthew M. Neely]]''' (Democratic) 61.9%
* {{Party stripe|Republican Party (US)}}[[James E. Jones (politician)|James E. Jones]] (Republican) 37.9%
}}

|-
! [[#Wyoming (Regular)|Wyoming]]
| rowspan=2 | [[Patrick Joseph Sullivan|Patrick J. Sullivan]]
| rowspan=2 {{Party shading/Republican}} | Republican
| 1929 {{Small|(Appointed)}}
| {{Party shading/Republican/Hold}} | Interim appointee retired.<br/>New senator [[1930 United States Senate election in Wyoming|elected]].<br/>Republican hold.<br/>Winner was also elected to finish the term; see above.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Robert D. Carey]]''' (Republican) 59.1%
* {{Party stripe|Democratic Party (US)}}[[Harry Schwartz (U.S. senator)|Harry Schwartz]] (Democratic) 41.0%<ref name="WyomingSp" />
}}
|}

== Closest races ==
'''Ten races had a margin of victory under 10%:'''

{| class="wikitable sortable"
! State
! Party of winner
! Margin
|-
! [[#Rhode Island|Rhode Island]]
| data-sort-value=-0.5 {{Party shading/Republican}} | Republican
| 1.1%
|-
! [[#Minnesota|Minnesota]]
| data-sort-value=-0.5 {{Party shading/Republican}} | Republican
| 1.5%{{Efn|[[#Minnesota|Minnesota]] was the "[[Tipping-point state|tipping point]]" state.}}
|-
! [[#Kansas (special)|Kansas (special)]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 2.0%
|-
! [[#South Dakota|South Dakota]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 3.2%
|-
! [[#Kentucky (regular)|Kentucky (regular)]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 4.2%
|-
! [[#Kentucky (special)|Kentucky (special)]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 4.6%
|-
! [[#Oklahoma|Oklahoma]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip) 
| 4.8%
|-
! [[#Delaware|Delaware]]
| data-sort-value=-0.5 {{Party shading/Republican}} | Republican 
| 9.1%
|-
! [[#Massachusetts|Massachusetts]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 9.3%
|-
! [[#Ohio|Ohio]]
| data-sort-value=-0.5 {{Party shading/Democratic}} | Democratic (flip)
| 9.6%
|}

== Alabama ==
{{Main|1930 United States Senate election in Alabama}}
{{See also|List of United States senators from Alabama}}
{{Infobox election
| election_name = 1930 United States Senate election in Alabama
| country = Alabama
| type = midterm
| ongoing = no
| previous_election = 1924 United States Senate election in Alabama
| previous_year = 1924
| next_election = 1936 United States Senate election in Alabama
| next_year = 1936
| election_date = November 4, 1930
| image_size = 110px
| image1 = File:John H Bankhead II.jpg
| candidate1 = '''[[John H. Bankhead II]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''150,985'''
| percentage1 = '''59.93%'''
| image2 = File:HEFLIN, J. THOMAS. SENATOR LCCN2016861288 (cropped).jpg
| candidate2 = [[James Thomas Heflin]]
| party2 = Independent Democrat
| popular_vote2 = 100,952
| percentage2 = 40.07%
| map_image = 1930 United States Senate election in Alabama results map by county.svg
| map_size = 250px
| map_caption = County results<br>'''Bankhead:''' {{legend0|#7996E2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584CDE|70–80%}} {{legend0|#3933E5|80–90%}} {{legend0|#0D0596|90–100%}} <br />'''Heflin:''' {{legend0|#BDBDBD|50–60%}} {{legend0|#969696|60–70%}}
| title = U.S. Senator
| before_election = [[James Thomas Heflin]]
| before_party = Democratic Party (United States)
| after_election = [[John H. Bankhead II]]
| after_party = Democratic Party (United States)
}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Alabama<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John H. Bankhead II]]
 | votes      = 150,985
 | percentage = 59.93
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = [[James Thomas Heflin]] (Incumbent)
 | votes      = 100,952
 | percentage = 40.07
}}
{{Election box majority no change
 | votes      = 50,033
 | percentage = 19.96
}}
{{Election box turnout no change
 | votes      = 251,937
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Independent
 | swing      = 
}}
{{End}}
{{Clear}}

== Arkansas ==
{{Main|1930 United States Senate election in Arkansas}}
{{See also|List of United States senators from Arkansas}}
{{Infobox election
| election_name = 1930 U.S. Senate Democratic primary in Arkansas
| country = Arkansas
| flag_year = 1924
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Arkansas
| previous_year = 1924
| next_election = 1936 United States Senate election in Arkansas
| next_year = 1936
| election_date = August 12, 1930
| image_size = x150px
| image1 = File:Joseph T. Robinson cropped.jpg
| nominee1 = '''[[Joseph Taylor Robinson|Joe T. Robinson]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''167,167'''
| percentage1 = '''76.59%'''
| image2 = File:3x4.svg
| nominee2 = Tom W. Campbell
| party2 = Democratic Party (United States)
| popular_vote2 = 51,085
| percentage2 = 23.41%
| title = U.S. Senator
| before_election = [[Joseph Taylor Robinson]]
| before_party = Democratic Party (United States)
| after_election = [[Joseph Taylor Robinson]]
| after_party = Democratic Party (United States)
}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Arkansas<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Joseph T. Robinson]] (Incumbent)
 | votes      = 141,906
 | percentage = 100.00
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Colorado ==
{{Main|1930 United States Senate election in Colorado}}
{{See also|List of United States senators from Colorado}}
{{Infobox election
| election_name = 1930 United States Senate election in Colorado
| country = Colorado
| flag_year =
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Colorado
| previous_year = 1924
| next_election = 1936 United States Senate election in Colorado
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px

| image1 = File:Senator_Edward_Prentiss_Costigan.jpg
| nominee1 = '''[[Edward P. Costigan]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''180,028'''
| percentage1 = '''55.85%'''

| image2 = 
| nominee2 = George H. Shaw
| party2 = Republican Party (United States)
| popular_vote2 = 137,487
| percentage2 = 42.65%

| map_size = 225px
| map_image = 1930 United States Senate election in Colorado results map by county.svg
| map_caption =  County results<br />'''Costigan:''' {{legend0|#A5B0FF|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br />'''Shaw:''' {{legend0|#FFB2B2|40–50%}} {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}

| title = U.S. Senator
| before_election = [[Lawrence C. Phipps]]
| before_party = Republican Party (United States)
| after_election = [[Edward P. Costigan]]
| after_party = Democratic Party (United States)
}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Colorado<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Edward P. Costigan]]
 | votes      = 180,028
 | percentage = 55.85
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = George H. Shaw
 | votes      = 137,487
 | percentage = 42.65
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = Morton Alexander
 | votes      = 1,745
 | percentage = 0.54
}}
{{Election box candidate with party link no change
 | party      = Farmer–Labor Party
 | candidate  = H. H. Marrs
 | votes      = 1,367
 | percentage = 0.42
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = James Allander
 | votes      = 924
 | percentage = 0.29
}}
{{Election box candidate no party link no change
 | party      = Liberal Party (US)
 | candidate  = Frank H. Rice
 | votes      = 451
 | percentage = 0.14
}}
{{Election box candidate with party link no change
 | party      = Commonwealth Land Party (US)
 | candidate  = August Lutteken
 | votes      = 339
 | percentage = 0.11
}}
{{Election box majority no change
 | votes      = 42,541
 | percentage = 13.20
}}
{{Election box turnout no change
 | votes      = 322,341
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Delaware ==
[[File:HastingsDanielO.jpg|thumb|x136px|Senator [[Daniel O. Hastings]]]]
{{See also|List of United States senators from Delaware|1930 United States House of Representatives election in Delaware}}

Interim appointee [[Daniel O. Hastings]] was elected both to finish the current term and to the next term on the same November 4 ballot.<ref name=Clerk/>

=== Delaware (regular) ===
<!--{{Main|1930 United States Senate election in Delaware}}-->
{{Election box begin no change
 | title      = Delaware regular election, November 4, 1930<ref name=Clerk/><ref>{{Cite web |title=Our Campaigns - DE US Senate Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=187197 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Daniel O. Hastings]] (Incumbent)
 | votes      = 47,909
 | percentage = 54.49
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Thomas F. Bayard Jr.]]
 | votes      = 39,881
 | percentage = 45.36
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Nicholas Minutella
 | votes      = 135
 | percentage = 0.15
}}
{{Election box majority no change
 | votes      = 8,028
 | percentage = 9.13
}}
{{Election box turnout no change
 | votes      = 87,925
 | percentage = 36.88
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}

=== Delaware (special) ===
<!--{{Main|1930 United States Senate special election in Delaware}}-->
{{Election box begin no change
 | title      = Delaware special election, November 4, 1930<ref>{{Cite web |title=Our Campaigns - DE US Senate - Special Election Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=267818 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Daniel O. Hastings]] (Incumbent)
 | votes      = 47,909
 | percentage = 54.49
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Thomas F. Bayard Jr.]]
 | votes      = 39,881
 | percentage = 45.36
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Nicholas Minutella
 | votes      = 135
 | percentage = 0.15
}}
{{Election box majority no change
 | votes      = 8,028
 | percentage = 9.13
}}
{{Election box turnout no change
 | votes      = 87,925
 | percentage = 36.88
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}

== Georgia ==
{{See also|List of United States senators from Georgia}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Georgia<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[William J. Harris]] (Incumbent)
 | votes      = 56,502
 | percentage = 100.00
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Wallace Miller
 | votes      = 1
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 56,501
 | percentage = 100.00
}}
{{Election box turnout no change
 | votes      = 56,503
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

== Idaho ==
{{Infobox election
| election_name      = 1930 United States Senate election in Idaho
| country            = Idaho
| flag_year          = 
| type               = presidential
| ongoing            = no
| previous_election  = 1924 United States Senate election in Idaho
| previous_year      = 1924
| next_election      = 1936 United States Senate election in Idaho
| next_year          = 1936
| election_date      = November 4, 1930
| image_size         = x150px
| image1             = File:BORAH, WILLIAM E. HONORABLE LCCN2016861388.jpg
| nominee1           = '''[[William Borah]]'''
| party1             = Republican Party (United States)
| popular_vote1      = '''94,938'''
| percentage1        = '''72.42%'''
| image2             = 
| nominee2           = Joseph M. Tyler
| party2             = Democratic Party (United States)
| popular_vote2      = 36,162
| percentage2        = 27.58%
 | map_image          = 1930 United States Senate election in Idaho results map by county.svg
 | map_caption        =  County results<br/>'''Borah''': {{legend0|#D75D5D|60-70%}} {{legend0|#D72F30|70-80%}} {{legend0|#C21B18|80-90%}}
 | map_size           = 200px
| title              = U.S. Senator
| before_election    = [[William Borah]]
| before_party       = Republican Party (United States)
| after_election     = [[William Borah]]
| after_party        = Democratic Party (United States)
}}
{{See also|List of United States senators from Idaho}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Idaho<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[William Borah]] (Incumbent)
 | votes      = 94,938
 | percentage = 72.42%
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Joseph M. Tyler
 | votes      = 36,162
 | percentage = 27.58%
}}
{{Election box majority no change
 | votes      = 58,776
 | percentage = 44.84
}}
{{Election box turnout no change
 | votes      = 131,100
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Illinois ==
{{Infobox election
 | election_name      = 1930 United States Senate election in Illinois
 | country            = Illinois
 | flag_year          = 1915
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in Illinois
 | previous_year      = 1924
 | next_election      = 1936 United States Senate election in Illinois 
 | next_year          = 1936
 | election_date      = November 4, 1930
 | image_size         = x150px
 | image1             = J.H. Lewis - Moffett, Chicago LCCN2014682655 (1).jpg
 | nominee1           = '''[[J. Hamilton Lewis]]'''
 | party1             = Democratic Party (United States)
 | popular_vote1      = '''1,432,216'''
 | percentage1        = '''64.02%'''
 | image2             = Ruth Hanna McCormick Crop.jpg
 | nominee2           = [[Ruth Hanna McCormick]]
 | party2             = Republican Party (United States)
 | popular_vote2      = 687,469
 | percentage2        = 30.73%
 | map_image          = 1930 United States Senate election in Illinois results map by county.svg
 | map_size           = 300px
 | map_caption        = Results by county<br/>'''Lewis:''' {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}<br/>'''Hanna McCormick:''' {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50–60%}}
 | title              = U.S. senator
 | before_election    = [[Charles S. Deneen]]
 | before_party       = Republican Party (United States)
 | after_election     = [[J. Hamilton Lewis]]
 | after_party        = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in Illinois}}
{{See also|List of United States senators from Illinois}}

{{Election box begin no change
 | title      = 1930 United States Senate election in Illinois<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (United States)
 | candidate  = [[J. Hamilton Lewis]]
 | votes      = 1,432,216
 | percentage = 64.02
}}
{{Election box candidate with party link no change
 | party      = Republican Party (United States)
 | candidate  = [[Ruth Hanna McCormick]]
 | votes      = 687,469
 | percentage = 30.73
}}
{{Election box candidate with party link no change
 | party      = Independent Republican (United States)
 | candidate  = [[Lottie Holman O'Neill]]
 | votes      = 99,485
 | percentage = 4.45
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = George Koop
 | votes      = 11,192
 | percentage = 0.50
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = Freeman Thompson
 | votes      = 3,118
 | percentage = 0.14
}}
{{Election box candidate no change
 | party      = Peace and Prosperity
 | candidate  = Louis Warner
 | votes      = 1,078
 | percentage = 0.05
}}
{{Election box candidate no change
 | party      = American National
 | candidate  = Ernest Stout
 | votes      = 1,060
 | percentage = 0.05
}}
{{Election box candidate no change
 | party      = Anti-League World Court, Anti-Foreign Entanglements
 | candidate  = C. Emmet Smith
 | votes      = 763
 | percentage = 0.03
}}
{{Election box candidate with party link no change
 | party      = Liberty Party (United States, 1932)
 | candidate  = James J. McGrath
 | votes      = 723
 | percentage = 0.03
}}
{{Election box majority no change
 | votes      = 744,747
 | percentage = 33.29
}}
{{Election box turnout no change
 | votes      = 2,237,104
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (United States)
 | loser      = Republican Party (United States)
 | swing      = 
}}
{{End}}
{{Clear}}

== Iowa ==
{{Infobox election
| election_name = 1930 United States Senate election in Iowa
| country = Iowa
| flag_image = Flag of Iowa (xrmap collection).svg
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Iowa
| previous_year = 1924
| next_election = 1936 United States Senate election in Iowa
| next_year = 1936
| election_date = November 4, 1930
| image1 = [[File:DICKINSON, LESTER J. HONORABLE LCCN2016860453 (cropped).jpg|x150px]]
| nominee1 = '''[[Lester J. Dickinson|L. J. Dickinson]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''307,613'''
| percentage1 = '''56.29%'''
| image2 = [[File:Daniel Steck.jpg|x150px]]
| nominee2 = [[Daniel F. Steck]]
| party2 = Democratic Party (United States)
| popular_vote2 = 235,186
| percentage2 = 43.03%
| map_image = 1930 United States Senate election in Iowa results map by county.svg
| map_size = 250px
| map_caption = County Results <br/>'''Dickinson:''' {{legend0|#E27F7F|50–60%}} {{legend0|#D75D5D|60–70%}} {{legend0|#D72F30|70–80%}}<br/>'''Steck:''' {{legend0|#7996E2|50–60%}} {{legend0|#6674DE|60–70%}}
| title = U.S. Senator
| before_election = [[Daniel F. Steck]]
| before_party = Democratic Party (United States)
| after_election = [[Lester J. Dickinson]]
| after_party = Republican Party (United States)
}}
{{Main|1930 United States Senate election in Iowa}}
{{See also|List of United States senators from Iowa}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Iowa<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Lester J. Dickinson]]
 | votes      = 307,613
 | percentage = 56.29
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Daniel F. Steck]] (Incumbent)
 | votes      = 235,186
 | percentage = 43.03
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Arthur A. Wells
 | votes      = 2,668
 | percentage = 0.49
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = L. E. Eickelberg
 | votes      = 1,045
 | percentage = 0.19
}}
{{Election box majority no change
 | votes      = 72,427
 | percentage = 13.26
}}
{{Election box turnout no change
 | votes      = 546,512
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Republican Party (US)
 | loser      = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Kansas ==
{{See also|List of United States senators from Kansas|1930 United States House of Representatives elections in Kansas}}

=== Kansas (regular) ===
{{Infobox election
| election_name      = 1930 United States Senate election in Kansas
| country            = Kansas
| flag_year          = 1927
| type               = presidential
| ongoing            = no
| previous_election  = 1924 United States Senate election in Kansas
| previous_year      = 1924
| next_election      = 1936 United States Senate election in Kansas
| next_year          = 1936
| election_date      = November 4, 1930
| image_size         = x100px
| image1             = File:CAPPER, ARTHUR C. SENATOR LCCN2016860456 (cropped).jpg
| nominee1           = '''[[Arthur Capper]]'''
| party1             = Republican Party (United States)
| popular_vote1      = '''364,548'''
| percentage1        = '''61.09%'''
| image2             = File:JonathanMDavis.jpg
| nominee2           = [[Jonathan M. Davis]]
| party2             = Democratic Party (United States)
| popular_vote2      = 232,161
| percentage2        = 38.91%
| map_image          = 1930 United States Senate election in Kansas results map by county.svg
| map_size           = 250px
| map_caption        = County results<br />'''Capper:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#D72F30|70–80%}}<br />'''Davis:''' {{legend0|#7996E2|50–60%}} {{legend0|#6674DE|60–70%}}
| title              = U.S. Senator
| before_election    = [[Arthur Capper]]
| before_party       = Republican Party (United States)
| after_election     = [[Arthur Capper]]
| after_party        = Republican Party (United States)
}}
<!--{{Main|1930 United States Senate election in Kansas}}-->
{{Election box begin no change
 | title      = Kansas regular election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Arthur Capper]] (Incumbent)
 | votes      = 364,548
 | percentage = 61.09
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Jonathan M. Davis]]
 | votes      = 232,161
 | percentage = 38.91
}}
{{Election box majority no change
 | votes      = 132,387
 | percentage = 22.18
}}
{{Election box turnout no change
 | votes      = 596,709
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

=== Kansas (special) ===
{{Infobox election
| election_name      = 1930 United States Senate special election in Kansas
| country            = Kansas
| flag_year          = 1927
| type               = presidential
| ongoing            = no
| previous_election  = 1926 United States Senate election in Kansas
| previous_year      = 1926
| next_election      = 1932 United States Senate election in Kansas
| next_year          = 1932
| election_date      = November 4, 1930
| image_size         = x100px
| image1             = File:GeorgeMcGill.jpg
| nominee1           = '''[[George McGill (Kansas politician)|George McGill]]'''
| party1             = Democratic Party (United States)
| popular_vote1      = '''288,889'''
| percentage1        = '''50.03%'''
| image2             = File:Sen. Henry J. Allen of Kansas, 10-16-29 LCCN2016844141 (cropped half length).jpg
| nominee2           = [[Henry Justin Allen]]
| party2             = Republican Party (United States)
| popular_vote2      = 276,833
| percentage2        = 47.95%
| map_image          = 1930 United States Senate special election in Kansas results map by county.svg
| map_size           = 250px
| map_caption        = County results<br />'''McGill:''' {{legend0|#A5B0FF|40–50%}} {{legend0|#7996E2|50–60%}} {{legend0|#6674DE|60–70%}}<br />'''Allen:''' {{legend0|#FFB2B2|40–50%}} {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
| title              = U.S. Senator
| before_election    = [[Henry Justin Allen]]
| before_party       = Republican Party (United States)
| after_election     = [[George McGill (Kansas politician)|George McGill]]
| after_party        = Democratic Party (United States)
}}
[[Democratic Party (United States)|Democratic]] nominee [[George McGill (Kansas politician)|George McGill]] defeated [[Republican Party (United States)|Republican]] incumbent [[United States Senator]] [[Henry Justin Allen]] by a very narrow margin. McGill was the first non-Republican to win this seat since [[1896 and 1897 United States Senate elections#Kansas|1896]].
<!--{{Main|1930 United States Senate Special election in Kansas}}-->
{{Election box begin no change
 | title      = Kansas special election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[George McGill (Kansas politician)|George McGill]]
 | votes      = 288,889
 | percentage = 50.03
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Henry Justin Allen]] (Incumbent)
 | votes      = 276,833
 | percentage = 47.95
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = H. M. Perkins
 | votes      = 11,659
 | percentage = 2.02
}}
{{Election box majority no change
 | votes      = 12,056
 | percentage = 0.08
}}
{{Election box turnout no change
 | votes      = 577,381
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Kentucky ==
{{See also|List of United States senators from Kentucky|1930 United States House of Representatives elections in Kentucky}}

=== Kentucky (regular) ===
{{Infobox election
| election_name = 1930 United States Senate election in Kentucky
| country = Kentucky
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Kentucky
| previous_year = 1924
| next_election = 1936 United States Senate election in Kentucky
| next_year = 1936
| election_date = November 4, 1930
| image_size = 125x136px
| image1 = [[File:MMLogan.jpg|x150px]]
| nominee1 = '''[[M. M. Logan]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''336,718'''
| percentage1 = '''52.13%'''
| image2 = [[File:John M. Robson (cropped).jpg|x150px]]
| nominee2 = [[John M. Robsion]]
| party2 = Republican Party (United States)
| popular_vote2 = 309,180
| percentage2 = 47.87%
| map_image = 1930 United States Senate election in Kentucky results map by county.svg
| map_size = 300px
| map_caption = County results<br />'''Logan:''' {{legend0|#7996E2|50–60%}} {{legend0|#6674DE|60–70%}} {{legend0|#584CDE|70–80%}} {{legend0|#3933E5|80–90%}}<br />'''Robsion:''' {{legend0|#E27F7F|50–60%}} {{legend0|#D75D5D|60–70%}} {{legend0|#D72F30|70–80%}} {{legend0|#C21B18|80–90%}}
| title = U.S. Senator
| before_election = [[John M. Robsion]]
| before_party = Republican Party (United States)
| after_election = [[Ben M. Williamson]]<br>(for unexpired term)<br>[[M. M. Logan]] (for next term)
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate elections in Kentucky}}
{{Election box begin no change
 | title      = Kentucky regular election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[M. M. Logan]]
 | votes      = 336,718
 | percentage = 52.13
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[John M. Robsion]] (incumbent)
 | votes      = 309,180
 | percentage = 47.87
}}
{{Election box majority no change
 | votes      = 27,538
 | percentage = 4.26
}}
{{Election box turnout no change
 | votes      = 645,898
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

{{Clear}}

=== Kentucky (special) ===
[[File:Ben Mitchell Williamson.jpg|thumb|125px|Senator [[Ben M. Williamson]]]]
<!--{{Main|1930 United States Senate special election in Kentucky}}-->
{{Election box begin no change
 | title      = Kentucky special election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Ben M. Williamson]]
 | votes      = 326,723
 | percentage = 52.34
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[John M. Robsion]] (Incumbent)
 | votes      = 297,510
 | percentage = 47.66
}}
{{Election box majority no change
 | votes      = 29,213
 | percentage = 4.68
}}
{{Election box turnout no change
 | votes      = 624,233
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}

{{Clear}}

== Louisiana ==
{{Main|1930 United States Senate election in Louisiana}}
{{See also|List of United States senators from Louisiana}}
{{Infobox election
| election_name = 1930 Democratic Senate primary election in Louisiana
| country = Louisiana
| flag_year = 1912
| type = Presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Louisiana
| previous_year = 1924
| next_election = 1936 United States Senate election in Louisiana
| next_year = 1936
| election_date = September 9, 1930
| image_size =
| image1 = [[File:HueyPLongGesture (cropped).jpg|x150px]]
| nominee1 = '''[[Huey Long]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''149,640'''
| percentage1 = '''57.31%'''
| image2 = [[File:JosephERansdell.jpg|x150px]]
| nominee2 = [[Joseph E. Ransdell|Joseph Ransdell]]
| party2 = Democratic Party (United States)
| popular_vote2 = 111,451
| percentage2 = 42.69%
| map_image = 1930 United States Senate Election Democratic Primary in Louisiana by County.svg
| map_size = 250px
| map_caption = Parish Results
{{col-begin}}
{{col-3}}
'''Long'''
{{legend|#7996E2|50–60%}}
{{legend|#6674DE|60–70%}}
{{legend|#584CDE|70–80%}}
{{legend|#3933E5|80–90%}}
{{legend|#0D0596|90–100%}}
{{col-2}}
'''Ransdell'''
{{legend|#51C2C2|50-60%}}
{{legend|#2AACAC|60-70%}}
{{legend|#009696|70-80%}}
{{legend|#008080|80-90%}}
{{col-end}} 
| title = U.S. Senator
| before_election = [[Joseph E. Ransdell]]
| before_party = Democratic Party (United States)
| after_election = [[Huey Long]]
| after_party = Democratic Party (United States)
}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Louisiana<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Huey Long]]
 | votes      = 130,536
 | percentage = 99.98
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 24
 | percentage = 0.02
}}
{{Election box majority no change
 | votes      = 130,512
 | percentage = 99.96
}}
{{Election box turnout no change
 | votes      = 130,560
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Maine ==
{{Main|1930 United States Senate election in Maine}}
{{See also|List of United States senators from Maine}}
{{Infobox election
| election_name      = 1930 United States Senate election in Maine
| country            = Maine
| type               = presidential
| ongoing            = no
| previous_election  = 1926 United States Senate special election in Maine
| previous_year      = 1926 (special)
| next_election      = 1936 United States Senate election in Maine
| next_year          = 1936
| election_date      = September 8, 1930
| image_size         = x150px

| image1             = File:WallaceWhiteJr.jpg
| nominee1           = '''[[Wallace White]]'''
| party1             = Republican Party (United States)
| popular_vote1      = '''88,262'''
| percentage1        = '''60.95%'''
| image2             = File:3x4.svg
| nominee2           = Frank Haskell
| party2             = Democratic Party (United States)
| popular_vote2      = 56,559
| percentage2        = 39.05%
| map_image = 1930 United States Senate election in Maine results map by county.svg
| map_size           = 250px
| map_caption        = County results<br/>'''White''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}
| title              = U.S. Senator
| before_election    = [[Arthur R. Gould|Arthur Gould]]
| before_party       = Republican Party (United States)
| after_election     = [[Wallace H. White Jr.]]
| after_party        = Republican Party (United States)
}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Maine<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Wallace H. White Jr.]]
 | votes      = 88,262
 | percentage = 60.95
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Frank W. Haskell
 | votes      = 56,559
 | percentage = 39.05
}}
{{Election box majority no change
 | votes      = 31,703
 | percentage = 21.90
}}
{{Election box turnout no change
 | votes      = 144,821
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Massachusetts ==
{{Infobox election
| election_name = 1930 United States Senate election in Massachusetts
| country = Massachusetts
| flag_year = 1908
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Massachusetts
| previous_year = 1924
| next_election = 1936 United States Senate election in Massachusetts
| next_year = 1936
| election_date = November 4, 1930
| image1 = [[File:MarcusACoolidge.jpg|x150px]]
| nominee1 = '''[[Marcus A. Coolidge]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''651,939'''
| percentage1 = '''54.01%'''
| image2 = [[File:W.M. Butler LCCN2014716609.jpg|x150px]]
| nominee2 = [[William M. Butler]]
| party2 = Republican Party (United States)
| popular_vote2 = 539,226
| percentage2 = 44.67%
| map_image          = 1930 United States Senate election in Massachusetts results map by county.svg
| map_size           = 250px
| map_caption = County results<br/>'''Coolidge''': {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#584cde|70–80%}}<br>'''Butler''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} 
| title = Senator
| before_election = [[Frederick H. Gillett]]
| before_party = Republican Party (United States)
| after_election = [[Marcus A. Coolidge]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in Massachusetts}}
{{See also|List of United States senators from Massachusetts}}
{{Election box begin
 | title      =General election <ref name="Massachusetts">{{Cite web |title=Our Campaigns - MA US Senate Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=230423 |access-date=2020-09-25 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Marcus A. Coolidge]]
 | votes      = 651,939
 | percentage = 54.01
 | change     = 
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[William M. Butler]]
 | votes      = 539,226
 | percentage = 44.67
 | change     = 
}}
{{Election box candidate with party link
 | party      = Socialist Party of America
 | candidate  = Sylvester J. McBride
 | votes      = 7,244
 | percentage = 0.60
 | change     = 
}}
{{Election box candidate with party link
 | party      = Socialist Labor Party of America
 | candidate  = Oscar Kinsalas
 | votes      = 4,640
 | percentage = 0.38
 | change     = 
}}
{{Election box candidate with party link
 | party      = Communist Party (US)
 | candidate  = [[Max Lerner]]
 | votes      = 3,962
 | percentage = 0.34
 | change     = 
}}
{{End}}
{{Clear}}

== Michigan ==
{{Infobox election
 | election_name      = 1930 United States Senate election in Michigan
 | country            = Michigan
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in Michigan
 | previous_year      = 1924
 | next_election      = 1936 United States Senate election in Michigan
 | next_year          = 1936
 | election_date      = November 4, 1930
 | image_size         = x150px
 | image1             = File:Sen. Jas. Couzens, (12-1-22) LCCN2016847013 (cropped).jpg
 | nominee1           = '''[[James J. Couzens]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''634,577'''
 | percentage1        = '''78.15%'''
 | image2             = File:T. A. E. Weadock (Michigan Congressman).jpg
 | nominee2           = [[Thomas A. E. Weadock|Thomas Weadock]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 169,757
 | percentage2        = 20.91%
 | map_image = 1930 United States Senate Election in Michigan by County.svg
 | map_size           = 300px
 | map_caption        = County results<br/>'''Couzens:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}} {{legend0|#C21B18|80–90%}} {{legend0|#A80000|90–100%}}
 | title              = U.S. Senator
 | before_election    = [[James J. Couzens]]
 | before_party       = Republican Party (US)
 | after_election     = [[James J. Couzens]]
 | after_party        = Republican Party (US)
}}
{{Main|1930 United States Senate election in Michigan}}
{{See also|List of United States senators from Michigan}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Michigan<ref name= Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[James J. Couzens]] (Incumbent)
 | votes      = 634,577
 | percentage = 78.15
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Thomas A. E. Weadock]]
 | votes      = 169,757
 | percentage = 20.91
}}
{{Election box candidate with party link no change
 | party      = Workers Party of America
 | candidate  = George Powers
 | votes      = 3,523
 | percentage = 0.43
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = Milton E. Depew
 | votes      = 2,419
 | percentage = 0.30
}}
{{Election box candidate with party link no change
 | party      = Prohibition Party (US)
 | candidate  = Charles Rennells
 | votes      = 1,718
 | percentage = 0.21
}}
{{Election box candidate no change
 | party      = None
 | candidate  = All Others
 | votes      = 13
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 464,820
 | percentage = 57.24
}}
{{Election box turnout no change
 | votes      = 812,007
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Minnesota ==
{{Infobox election
| election_name      = 1930 United States Senate election in Minnesota
| country            = Minnesota
| flag_year          = 1893
| type               = presidential
| ongoing            = no
| previous_election  = 1924 United States Senate election in Minnesota
| previous_year      = 1924
| next_election      = 1936 United States Senate special election in Minnesota
| next_year          = 1936 (special)
| election_date      = November 4, 1930
| image_size         = 125x136px
| image1             = ThomasDSchall.jpg
| nominee1           = '''[[Thomas D. Schall]]'''
| party1             = Republican Party of Minnesota
| popular_vote1      = '''293,626'''
| percentage1        = '''37.61%'''
| image2             = File:Einar Hoidale (Minnesota Congressman).jpg
| nominee2           = [[Einar Hoidale]]
| party2             = Democratic Party of Minnesota
| popular_vote2      = 282,018
| percentage2        = 36.13%
| image3             = ErnestLundeen.jpg
| nominee3           = [[Ernest Lundeen]]
| party3             = Farmer–Labor Party
| popular_vote3      = 178,671
| percentage3        = 22.89%
| map_image          = 1930 United States Senate election in Minnesota results map by county.svg
| map_size           = 250px
 | map_caption        = County results<br/>'''Schall:''' {{legend0|#FFC8CD|30–40%}} {{legend0|#FFB2B2|40–50%}} {{legend0|#E27F7F|50–60%}} {{legend0|#D75D5D|60–70%}}<br/>'''Hoidale:''' {{legend0|#BDD3FF|30–40%}} {{legend0|#A5B0FF|40–50%}} {{legend0|#7996E2|50–60%}}<br/>'''Lundeen:''' {{legend0|#B4FFE5|30–40%}} {{legend0|#7EE5C1|40–50%}} {{legend0|#47CC9D|50–60%}}
| title              = U.S. Senator
| before_election    = [[Thomas D. Schall]]
| before_party       = Republican Party of Minnesota
| after_election     = [[Thomas D. Schall]]
| after_party        = Republican Party of Minnesota
}}
{{Main|1930 United States Senate election in Minnesota}}
{{See also|List of United States senators from Minnesota}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Minnesota<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (Minnesota)
 | candidate  = [[Thomas D. Schall]] (Incumbent)
 | votes      = 293,626
 | percentage = 37.61
}}
{{Election box candidate with party link no change
 | party      = Democratic Party of Minnesota
 | candidate  = [[Einar Hoidale]]
 | votes      = 282,018
 | percentage = 36.13
}}
{{Election box candidate with party link no change
 | party      = Farmer–Labor Party
 | candidate  = [[Ernest Lundeen]]
 | votes      = 178,671
 | percentage = 22.89
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Charles A. Lund
 | votes      = 20,669
 | percentage = 2.65
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Rudolph Harju
 | votes      = 5,645
 | percentage = 0.72
}}
{{Election box majority no change
 | votes      = 11,608
 | percentage = 1.48
}}
{{Election box turnout no change
 | votes      = 780,629
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (Minnesota)
 | swing      = 
}}
{{End}}
{{Clear}}

== Mississippi ==
{{See also|List of United States senators from Mississippi}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Mississippi<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Pat Harrison]] (Incumbent)
 | votes      = 33,953
 | percentage = 100.00
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Montana ==
{{Infobox election
| election_name = 1930 United States Senate election in Montana
| country = Montana
| flag_year = 1905
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Montana
| previous_year = 1924
| next_election = 1934 United States Senate special election in Montana
| next_year = 1934 (special)
| election_date = November 4, 1930
| image1 = [[File:Thomas J. Walsh cph.3c02581.jpg|x150px]]
| nominee1 = '''[[Thomas J. Walsh]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''106,274'''
| percentage1 = '''60.33%'''
| image2 = [[File:No image.svg|x120px]]
| nominee2 = Albert J. Galen
| party2 = Republican Party (United States)
| popular_vote2 = 66,724
| percentage2 = 37.88%
| map_image = 1930 United States Senate election in Montana results map by county.svg
| map_size = 300px
| map_caption = County Results<br>'''Walsh:''' {{legend0|#bdd3ff|30–40%}} {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}}<br>{{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}
<br>'''Galen:''' {{legend0|#e27f7f|50–60%}}
| title = U.S. Senator
| before_election = [[Thomas J. Walsh]]
| before_party = Democratic Party (United States)
| after_election = [[Thomas J. Walsh]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in Montana}}
{{See also|List of United States senators from Montana}}
{{Election box begin | title= 1930 United States Senate election in Montana<ref name="Clerk">{{Cite web |title=Statistics of the Congressional Election of November 4, 1930 |url=http://clerk.house.gov/member_info/electionInfo/1930election.pdf |access-date=July 2, 2014 |publisher=Clerk of the United States House of Representatives}}</ref>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Thomas J. Walsh]] (Incumbent)
 | votes      = 106,274
 | percentage = 60.33
 | change     = +7.52%
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = Albert J. Galen
 | votes      = 66,724
 | percentage = 37.88
 | change     = -4.52%
}}
{{Election box candidate with party link
 | party      = Farmer–Labor Party
 | candidate  = Charles E. Taylor
 | votes      = 1,789
 | percentage = 1.02
 | change     = -3.32%
}}
{{Election box candidate with party link
 | party      = Socialist Party of America
 | candidate  = John F. McKay
 | votes      = 1,006
 | percentage = 0.57
 | change     = +0.26%
}}
{{Election box candidate with party link
 | party      = Communist Party (US)
 | candidate  = Willis L. Wright
 | votes      = 368
 | percentage = 0.21
 | change     = 
}}
{{Election box majority
 | votes      = 39,550
 | percentage = 22.45
 | change     = +12.04%
}}
{{Election box turnout
 | votes      = 176,161
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Nebraska ==
{{Infobox election
 | election_name      = 1930 United States Senate election in Nebraska
 | country            = Nebraska
 | flag_year          = 1925
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in Nebraska
 | previous_year      = 1924
 | next_election      = 1936 United States Senate election in Nebraska
 | next_year          = 1936
 | election_date      = November 4, 1930
 | image_size         = x155px
 | image1             = GeorgeWNorris.jpg
 | nominee1           = '''[[George W. Norris]]'''
 | party1             = Republican Party (United States)
 | popular_vote1      = '''247,118'''
 | percentage1        = '''56.84%'''
 | image2             = HITCHCOCK, G.M. HONORABLE LCCN2016857525 (cropped).jpg
 | nominee2           = [[Gilbert Hitchcock]]
 | party2             = Democratic Party (United States)
 | popular_vote2      = 172,795
 | percentage2        = 39.74%
 | map_image          = 1930 United States Senate election in Nebraska results map by county.svg
 | map_size           = 300px
| map_caption       = County results<br>'''Norris''': {{legend0|#ffb2b2 |40–50%}} {{legend0|#e38080 |50–60%}} {{legend0|#d85d5d|60–70%}} {{legend0|#d82b2c|70–80%}}<br>'''Hitchcock''': {{legend0|#7a97e3|50–60%}}
 | title              = U.S. Senator
 | before_election    = [[George W. Norris]]
 | before_party       = Republican Party (US)
 | after_election     = [[George W. Norris]]
 | after_party        = Republican Party (US)
}}
{{Main|1930 United States Senate election in Nebraska}}
{{See also|List of United States senators from Nebraska}}

{{Election box begin no change
 | title      = 1930 United States Senate election in Nebraska<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[George W. Norris]] (Incumbent)
 | votes      = 247,118
 | percentage = 56.84
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Gilbert Hitchcock]]
 | votes      = 172,795
 | percentage = 39.74
}}
{{Election box candidate no change
 | party      = By Petition
 | candidate  = Beatrice Fenton Craig
 | votes      = 14,884
 | percentage = 3.42
}}
{{Election box candidate no change
 | party      = N/A
 | candidate  = Scattering
 | votes      = 7
 | percentage = <0.01
}}
{{Election box majority no change
 | votes      = 74,323
 | percentage = 17.10
}}
{{Election box turnout no change
 | votes      = 434,804
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{end}}
{{Clear}}

== New Hampshire ==
{{Infobox election
 | election_name      = 1930 United States Senate election in New Hampshire
 | country            = New Hampshire
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in New Hampshire
 | previous_year      = 1924
 | next_election      = 1936 United States Senate election in New Hampshire
 | next_year          = 1936
 | election_date      = November 4, 1930
 | image_size         = x100px
 | image1             = File:KEYES, HENRY W. HONORABLE LCCN2016860385 (cropped).jpg
 | nominee1           = '''[[Henry W. Keyes]]'''
 | party1             = Republican Party (United States)
 | popular_vote1      = '''72,225'''
 | percentage1        = '''57.88%'''
 | image2             = 
 | nominee2           = Albert W. Noone
 | party2             = Democratic Party (United States)
 | popular_vote2      = 52,284
 | percentage2        = 41.90%
 | map_image          = 1930 United States Senate election in New Hampshire results map by county.svg
 | map_size           = 250px
 | map_caption        = County results <br/> '''Keyes:''' {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}} {{legend0|#D72F30|70-80%}}<br>'''Noone:''' {{legend0|#7996E2|50–60%}} 
 | title              = Senator
 | before_election    = [[Henry W. Keyes]]
 | before_party       = Republican Party (US)
 | after_election     = [[Henry W. Keyes]]
 | after_party        = Republican Party (US)
}}
{{See also|List of United States senators from New Hampshire}}
{{Election box begin no change
 | title      = 1930 United States Senate election in New Hampshire<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Henry W. Keyes]] (Incumbent)
 | votes      = 72,225
 | percentage = 57.88
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Albert W. Noone
 | votes      = 52,284
 | percentage = 41.90
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = Henry C. Iram
 | votes      = 282
 | percentage = 0.23
}}
{{Election box majority no change
 | votes      = 19,941
 | percentage = 15.98
}}
{{Election box turnout no change
 | votes      = 124,791
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== New Jersey ==
{{See also|List of United States senators from New Jersey|1930 United States House of Representatives elections in New Jersey}}

=== New Jersey (regular) ===
{{Infobox election
| election_name = 1930 United States Senate election in New Jersey
| country = New Jersey
| flag_year          = 1896
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in New Jersey
| previous_year = 1924
| next_election = 1932 United States Senate special election in New Jersey
| next_year = 1932 (special)
| election_date = November 4, 1930
| image1 = [[File:Dwight Morrow.jpg|x150px]]
| nominee1 = '''[[Dwight Morrow]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''601,497'''
| percentage1 = '''58.50%'''
| image2 = [[File:3x4.svg|x150px]]
| nominee2 = [[Alexander Simpson (politician)|Alexander Simpson]]
| party2 = Democratic Party (United States)
| popular_vote2 = 401,007
| percentage2 = 39.00%
| title = Senator
| map_image =File:1930 United States Senate election in New Jersey results map by county.svg
| map_caption = Results by county<br />'''Morrow''': {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}} {{legend0|#d72f30|70-80%}}<br />'''Simpson''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60-70%}}
| before_election = [[David Baird Jr.]]
| before_party = Republican Party (United States)
| after_election = [[Dwight Morrow]]
| after_party = Republican Party (United States)
}}
{{Main|1930 United States Senate election in New Jersey}}

{{Election box begin no change
 | title      =New Jersey regular election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Dwight Morrow]]
 | votes      = 601,497
 | percentage = 58.50
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Alexander Simpson (politician)|Alexander Simpson]]
 | votes      = 401,007
 | percentage = 39.00
}}
{{Election box candidate with party link no change
 | party      = Prohibition Party (US)
 | candidate  = Esther Hill Elfeth
 | votes      = 18,903
 | percentage = 1.84
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = [[Henry Jager]]
 | votes      = 4,519
 | percentage = 0.44
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = Dozier W. Graham
 | votes      = 1,627
 | percentage = 0.16
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = Alexander Kudlik
 | votes      = 670
 | percentage = 0.07
}}
{{Election box majority no change
 | votes      = 200,490
 | percentage = 19.50
}}
{{Election box turnout no change
 | votes      = 1,028,223
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

=== New Jersey (special) ===
{{Infobox election
| election_name = 1930 United States Senate special election in New Jersey
| country = New Jersey
| flag_year          = 1896
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in New Jersey
| previous_year = 1924
| next_election = 1932 United States Senate special election in New Jersey
| next_year = 1932 (special)
| election_date = November 4, 1930
| image1 = [[File:Dwight Morrow.jpg|x150px]]
| nominee1 = '''[[Dwight Morrow]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''571,006'''
| percentage1 = '''59.14%'''
| image2 = [[File:3x4.svg|x150px]]
| nominee2 = Thelma Parkinson
| party2 = Democratic Party (United States)
| popular_vote2 = 372,739
| percentage2 = 38.60%
| title = Senator
| map_image = 1930 United States Senate special election in New Jersey results map by county.svg
| map_caption = Results by county<br />'''Morrow''': {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}} {{legend0|#d72f30|70-80%}}<br />'''Simpson''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60-70%}}
| before_election = [[David Baird Jr.]]
| before_party = Republican Party (United States)
| after_election = [[Dwight Morrow]]
| after_party = Republican Party (United States)
}}
<!--{{Main|1930 United States Senate special election in New Jersey}}-->
{{Election box begin no change
 | title      = New Jersey special election<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Dwight Morrow]]
 | votes      = 571,006
 | percentage = 59.14
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Thelma Parkinson]]
 | votes      = 372,739
 | percentage = 38.60
}}
{{Election box candidate with party link no change
 | party      = Prohibition Party (US)
 | candidate  = James G. Mason
 | votes      = 15,512
 | percentage = 1.61
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = [[Henry Jager]]
 | votes      = 4,615
 | percentage = 0.48
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = Dozier W. Graham
 | votes      = 1,700
 | percentage = 0.18
}}
{{Election box majority no change
 | votes      = 198,267
 | percentage = 20.54
}}
{{Election box turnout no change
 | votes      = 965,572
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== New Mexico ==
{{Infobox election
| election_name      = 1930 United States Senate election in New Mexico
| country            = New Mexico
| flag_year          = 
| type               = presidential
| ongoing            = no
| previous_election  = 1924 United States Senate election in New Mexico
| previous_year      = 1924
| next_election      = 1934 United States Senate special election in New Mexico
| next_year          = 1934 (special)
| election_date      = November 4, 1930
| image_size         = x100px
| image1             = File:BRATTON, SAM. SENATOR LCCN2016862206 (cropped).jpg
| nominee1           = '''[[Sam G. Bratton]]'''
| party1             = Democratic Party (United States)
| popular_vote1      = '''69,362'''
| percentage1        = '''58.62%'''
| image2             = 
| nominee2           = Ernest W. Everly
| party2             = Republican Party (United States)
| popular_vote2      = 48,699
| percentage2        = 41.16%
| map_image          = 1930 United States Senate election in New Mexico results map by county.svg
| map_size           = 215px
| map_caption        = County results<br>'''Bratton''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933E5|80–90%}}<br>'''Everly''': {{legend0|#E27F7F|50–60%}}
| title              = U.S. Senator
| before_election    = [[Sam G. Bratton]]
| before_party       = Democratic Party (United States)
| after_election     = [[Sam G. Bratton]]
| after_party        = Democratic Party (United States)
}}
{{See also|List of United States senators from New Mexico}}
{{Election box begin no change
 | title      = 1930 United States Senate election in New Mexico<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Sam G. Bratton]] (incumbent)
 | votes      = 69,362
 | percentage = 58.62
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Herbert B. Holt
 | votes      = 48,699
 | percentage = 41.16
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = R. B. Cochran
 | votes      = 256
 | percentage = 0.22
}}
{{Election box majority no change
 | votes      = 20,663
 | percentage = 17.46
}}
{{Election box turnout no change
 | votes      = 118,317
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== North Carolina ==
{{Infobox election
 | election_name      = 1930 United States Senate election in North Carolina
 | country            = North Carolina
 | type               = Presidential 
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in North Carolina
 | previous_year      = 1924
 | next_election      = 1936 United States Senate special election in North Carolina
 | next_year          = 1936
 | election_date      = November 4, 1930
 | image_size         = x140px
 | flag_year          = 1885
 | image1             = File:Josiah W. Bailey.jpg
 | nominee1           = '''[[Josiah Bailey]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''324,393'''
 | percentage1        = '''60.61%'''
 | image2             = File:George M. Pritchard.jpg
 | nominee2           = [[George M. Pritchard]]
 | party2             = Republican Party (US)
 | popular_vote2      = 210,761
 | percentage2        = 39.38%
| map_image = 1930 United States Senate election in North Carolina results map by county.svg
| map_size = 325px
| map_caption = County results<br/>'''Bailey''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|90-100%}}<br/>'''Pritchard''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#C21B18|80–90%}}
 | title              = Senator
 | before_election    = [[Josiah Bailey]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Josiah Bailey]]
 | after_party        = Democratic Party (US)
}}
<!--{{Main|1930 United States Senate election in North Carolina}}-->
{{See also|List of United States senators from North Carolina}}

{{Election box begin no change
 | title      = 1930 United States Senate election in North Carolina<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Josiah Bailey]]
 | votes      = 324,393
 | percentage = 60.61
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[George M. Pritchard]]
 | votes      = 210,761
 | percentage = 39.38
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = [[F. M. Simmons]] (Incumbent)
 | votes      = 26
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 113,632
 | percentage = 21.23
}}
{{Election box turnout no change
 | votes      = 535,180
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Ohio (special) ==
{{Infobox election
| election_name = 1930 United States Senate special election in Ohio
| country = Ohio
| type = presidential
| ongoing = no
| previous_election = 1928 United States Senate special election in Ohio
| previous_year = 1928 (special)
| next_election = 1932 United States Senate election in Ohio
| next_year = 1932
| election_date = November 4, 1930
| image_size = x150px

| image1 = RobertJBulkley (cropped).jpg
| nominee1 = '''[[Robert J. Bulkley]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''1,046,561'''
| percentage1 = '''54.78%'''

| image2 = McCULLOCH, ROSCOE C. HONORABLE LCCN2016859015 (1).jpg
| nominee2 = [[Roscoe C. McCulloch]]
| party2 = Republican Party (United States)
| popular_vote2 = 863,944
| percentage2 = 45.22%
| map_image = 1930 United States Senate special election in Ohio results map by county.svg
| map_size = 230px
| map_caption = County results<br/>'''Bulkley:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br/>'''McCulloch:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}
| title = United States Senator
| before_election = [[Roscoe C. McCulloch]]
| before_party = Republican Party (United States)
| after_election = [[Robert J. Bulkley]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate special election in Ohio}}
{{See also|List of United States senators from Ohio}}
{{Election box begin no change
 | title      = 1930 United States Senate special election in Ohio<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Robert J. Bulkley]]
 | votes      = 1,046,561
 | percentage = 54.78
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Roscoe C. McCulloch]] (Incumbent)
 | votes      = 863,944
 | percentage = 45.22
}}
{{Election box majority no change
 | votes      = 182,617
 | percentage = 9.56
}}
{{Election box turnout no change
 | votes      = 1,910,505
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Oklahoma ==
{{Infobox election
| election_name = 1930 United States Senate election in Oklahoma
| country = Oklahoma
| flag_year = 1925
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Oklahoma
| previous_year = 1924
| next_election = 1936 United States Senate election in Oklahoma
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px

| image1 = File:ThomasGore3c32246u crop.jpg
| nominee1 = '''[[Thomas Gore]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''255,838'''
| percentage1 = '''52.29%'''

| image2 = William Bliss Pine.jpg
| nominee2 = [[William B. Pine]]
| party2 = Republican Party (United States)
| popular_vote2 = 232,589
| percentage2 = 47.54%

| map_size = 
| map_image = 1930 United States Senate election in Oklahoma results map by county.svg
| map_caption = County results<br>'''Gore''': {{legend0|#7a97e3|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}<br>'''Pine''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}

| title = U.S. Senator
| before_election = [[William B. Pine]]
| before_party = Republican Party (United States)
| after_election = [[Thomas Gore]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in Oklahoma}}
{{See also|List of United States senators from Oklahoma}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Oklahoma<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Thomas Gore]]
 | votes      = 255,838
 | percentage = 52.29
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[William B. Pine]] (Incumbent)
 | votes      = 232,589
 | percentage = 47.54
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Edward D. Evans
 | votes      = 614
 | percentage = 0.13
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Thomas P. Hopley
 | votes      = 218
 | percentage = 0.04
}}
{{Election box majority no change
 | votes      = 23,249
 | percentage = 4.75
}}
{{Election box turnout no change
 | votes      = 489,259
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Oregon ==
{{Infobox election
 | election_name      = 1930 United States Senate election in Oregon
 | country            = Oregon
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1924 United States Senate election in Oregon
 | previous_year      = 1924
 | next_election      = 1936 United States Senate election in Oregon
 | next_year          = 1936
 | election_date      = November 4, 1930 
 | image_size         = x150px
 | image1             = File:Charles Linza McNary cph.3b18950 (cropped 3x4).jpg
 | nominee1           = '''[[Charles L. McNary]]'''
 | party1             = Republican Party (United States)
 | popular_vote1      = '''137,231'''
 | percentage1        = '''58.06%'''
 | image2             = File:Elton Watkins (Oregon Congressman).jpg
 | nominee2           = [[Elton Watkins]]
 | party2             = Democratic Party (United States)
 | popular_vote2      = 66,028
 | percentage2        = 27.93%
 | map_image          = 1930 United States Senate election in Oregon results map by county.svg
 | map_size           = 270px
 | map_caption        = County results<br/>'''McNary''':  {{legend0|#FFB2B2|40-50%}} {{legend0|#E27F7F|50-60%}} {{legend0|#D75D5D|60-70%}} {{legend0|#D72F30|70-80%}}
 | title              = Senator
 | before_election    = [[Charles L. McNary]]
 | before_party       = Republican Party (US)
 | after_election     = [[Charles L. McNary]]
 | after_party        = Republican Party (US)
}}
{{See also|List of United States senators from Oregon}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Oregon<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Charles L. McNary]] (Incumbent)
 | votes      = 137,231
 | percentage = 58.06
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Elton Watkins]]
 | votes      = 66,028
 | percentage = 27.93
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = L. A. Banks
 | votes      = 17,488
 | percentage = 7.40
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = H. H. Stallard
 | votes      = 10,573
 | percentage = 4.47
}}
{{Election box candidate no party link no change
 | party      = Independent Socialist Labor Party (US)
 | candidate  = O. D. Teel
 | votes      = 5,051
 | percentage = 2.14
}}
{{Election box candidate no change
 | party      = None
 | candidate  = All Others
 | votes      = 5
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 71,203
 | percentage = 30.13
}}
{{Election box turnout no change
 | votes      = 236,376
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Pennsylvania (special) ==
{{Infobox election
| election_name = 1930 United States Senate special election in Pennsylvania
| country = Pennsylvania
| type = presidential
| ongoing = no
| previous_election = 1926 United States Senate election in Pennsylvania
| previous_year = 1926
| next_election = 1932 United States Senate election in Pennsylvania
| next_year = 1932
| election_date = November 4, 1930
| image1 = [[Image:Jjdavis.jpg|x150px]]
| nominee1 = '''[[James J. Davis]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''1,462,186'''
| percentage1 = '''71.54%'''
| image2 = [[File:3x4.svg|x150px]]
| nominee2 = [[Sedgwick Kistler]]
| party2 = Democratic Party (United States)
| popular_vote2 = 523,338
| percentage2 = 25.61%
| map_image = 1930 United States Senate special election in Pennsylvania results map by county.svg
| map_size = 250px
| map_caption = '''County results'''<br>'''Davis:''' {{legend0|#ffc8cd|30–40%}} {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}} {{legend0|#c21b18|80–90%}}<br>'''Kistler:''' {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}}
| title = U.S. Senator
| before_election = [[Joseph R. Grundy]]
| before_party = Republican Party (United States)
| after_election = [[James J. Davis]]
| after_party = Republican Party (United States)
}}
{{Main|1930 United States Senate special election in Pennsylvania}}
{{See also|List of United States senators from Pennsylvania}}
{{Election box begin | title= 1930 United States Senate special election in Pennsylvania<ref>{{Cite web |title=PA US Senate |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=43848 |access-date=3 July 2012 |publisher=OurCampaigns}}</ref>
}}
{{Election box winning candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[James J. Davis]]
 | votes      = 1,462,186
 | percentage = 71.54
 | change     = 
}}
{{Election box candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Sedgwick Kistler]]
 | votes      = 523,338
 | percentage = 25.61
 | change     = 
}}
{{Election box candidate with party link
 | party      = Socialist Party of America
 | candidate  = William J. Van Essen
 | votes      = 26,796
 | percentage = 1.31
 | change     = 
}}
{{Election box candidate with party link
 | party      = Prohibition Party
 | candidate  = S. W. Bierer
 | votes      = 24,498
 | percentage = 1.20
 | change     = 
}}
{{Election box candidate with party link
 | party      = Communist Party USA
 | candidate  = Emmett Patrick Cush
 | votes      = 6,960
 | percentage = 0.34
 | change     = 
}}
{{Election box majority
 | votes      = 938,848
 | percentage = 45.93
 | change     = 
}}
{{Election box turnout
 | votes      = 2,043,820
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Rhode Island ==
{{See also|List of United States senators from Rhode Island}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Rhode Island<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Jesse H. Metcalf]] (Incumbent)
 | votes      = 112,202
 | percentage = 50.30
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Peter G. Gerry]]
 | votes      = 109,687
 | percentage = 49.17
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = Charles F. Bishop
 | votes      = 1,195
 | percentage = 0.54
}}
{{Election box majority no change
 | votes      = 2,515
 | percentage = 1.13
}}
{{Election box turnout no change
 | votes      = 223,084
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}

Incumbent Republican Senator [[Jesse H. Metcalf]] successfully sought reelection to a 2nd term in office. {{As of|2023}}, this is the last time a Republican has won the Class 2 Senate seat in Rhode Island, and it would be the last time a Republican would win any Senate seat in the state at all until [[John Chafee]] in [[1976 United States Senate election in Rhode Island|1976]].

== South Carolina ==
{{Infobox election
| election_name = 1930 Democratic Senate primary runoff in South Carolina
| country = South Carolina
| type = presidential
| ongoing = no
| previous_election = United States Senate election in South Carolina, 1924
| previous_year = 1924
| next_election = United States Senate election in South Carolina, 1936
| next_year = 1936
| election_date = September 9, 1930
| image_size = 160x180px
| image1 = Senator James F Byrnes.jpg
| image1_size = x150px
| nominee1 = '''[[James F. Byrnes]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''120,755'''
| percentage1 = '''50.95%'''
| image2 = Coleman L Blease (cropped).jpg
| image2_size = x150px
| nominee2 = [[Coleman Livingston Blease|Cole Blease]]
| party2 = Democratic Party (United States)
| popular_vote2 = 116,264
| percentage2 = 49.05%
| map_image = 1930 United States Senate Primary election in South Carolina results map by county.svg
| map_size = 250px
| map_caption = County results<br/>'''Byrnes''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br/>'''Blease''': {{legend0|#51c2c2|50–60%}} {{legend0|#2aacac|60–70%}}
| title = U.S. Senator
| before_election = [[Coleman Livingston Blease]]
| before_party = Democratic Party (United States)
| after_election = [[James F. Byrnes]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in South Carolina}}
{{See also|List of United States senators from South Carolina}}
{{Election box begin | title=South Carolina U.S. Senate Election, 1930
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[James F. Byrnes]]
 | votes      = 16,211
 | percentage = 100.0
 | change     = 0.0
}}
{{Election box majority
 | votes      = 16,211
 | percentage = 100.0
 | change     = 0.0
}}
{{Election box turnout
 | votes      = 16,211
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | swing      = 
 | change     = 
}}
{{End}}
{{Clear}}

== South Dakota ==
{{Infobox election
| election_name = 1930 United States Senate election in South Dakota
| country = South Dakota
| flag_year = 1909
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in South Dakota
| previous_year = 1924
| next_election = 1936 United States Senate election in South Dakota
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px

| image1 = File:Bulowwilliam.jpg
| nominee1 = '''[[William J. Bulow]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''106,317'''
| percentage1 = '''51.63%'''

| image2 = WHMcMaster.jpg
| nominee2 = [[William H. McMaster]]
| party2 = Republican Party (United States)
| popular_vote2 = 99,595
| percentage2 = 48.37%

| map_size = 240px
| map_image = 1930 United States Senate election in South Dakota results map by county.svg
| map_caption = County results<br/>'''Bulow:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#0d056c|>90%}}<br/>'''McMaster:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}

| title = U.S. Senator
| before_election = [[William H. McMaster]]
| before_party = Republican Party (United States)
| after_election = [[William J. Bulow]]
| after_party = Democratic Party (United States)
}}
{{Main|1930 United States Senate election in South Dakota}}
{{See also|List of United States senators from South Dakota}}
{{Election box begin no change
 | title      = 1930 United States Senate election in South Dakota<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[William J. Bulow]]
 | votes      = 106,317
 | percentage = 51.63
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[William H. McMaster]] (Incumbent)
 | votes      = 99,595
 | percentage = 48.37
}}
{{Election box majority no change
 | votes      = 6,722
 | percentage = 3.26
}}
{{Election box turnout no change
 | votes      = 205,912
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Tennessee ==
{{Main|1930 United States Senate elections in Tennessee}}
{{See also|List of United States senators from Tennessee|1930 United States House of Representatives elections in Tennessee}}

One-term Democrat [[Lawrence D. Tyson]] died August 24, 1929, and Democrat [[William E. Brock]] was appointed September 2, 1929, to continue the term, pending a special election.

=== Tennessee (special) ===
{{Infobox election
| election_name = 1930 United States Senate special election in Tennessee
| country = Tennessee
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Tennessee
| previous_year = 1924
| next_election = 1934 United States Senate special election in Tennessee
| next_year = 1934
| election_date = November 4, 1930
| image_size = x150px
| image1 = File:William E. Brock I.jpg
| nominee1 = '''[[William E. Brock]]'''
| party1 = Democratic Party (US)
| popular_vote1 = '''144,019'''
| percentage1 = '''74.40%'''
| image2 = Blank2x3.svg
| nominee2 = F. Todd Meacham
| party2 = Republican Party (US)
| popular_vote2 = 49,554
| percentage2 = 25.60%
| map_image = 1930 United States Senate special election in Tennessee results map by county.svg
| map_size = 
| map_caption = Results by county<br/>'''Brock''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584CDE|70–80%}} {{legend0|#3933E5|80–90%}} {{legend0|#0D0596|>90%}}<br/>'''Meacham''': {{legend0|#E27F7F|50–60%}}
| title = Senator
| before_election = [[William E. Brock]]
| before_party = Democratic Party (US)
| after_election = [[William E. Brock]]
| after_party = Democratic Party (US)
}}{{Main|1930 United States Senate special election in Tennessee}}

Interim Democrat [[William E. Brock]] easily won election to finish the term.

{{Election box begin no change
 | title      =Tennessee special Democratic primary (August 7, 1930)<ref>{{Cite web |title=Our Campaigns - TN US Senate - Special D Primary Race - Aug 07, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=384582 |access-date=June 19, 2020 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[William E. Brock]] (incumbent)
 | votes      = 113,492
 | percentage = 70.67
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John Randolph Neal Jr.]]
 | votes      = 47,110
 | percentage = 29.33
}}
{{Election box majority no change
 | votes      = 66,382
 | percentage = 41.33
}}
{{Election box turnout no change
 | votes      = 
 | percentage = 6.14
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

{{Election box begin no change
 | title      =Tennessee special election<ref name=Clerk/><ref>{{Cite web |title=Our Campaigns - TN US Senate Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=90222 |access-date=June 19, 2020 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[William E. Brock]] (incumbent)
 | votes      = 144,019
 | percentage = 74.40
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = F. Todd Meacham
 | votes      = 49,554
 | percentage = 25.60
}}
{{Election box majority no change
 | votes      = 94,465
 | percentage = 48.80
}}
{{Election box turnout no change
 | votes      = 193,573
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

{{Clear}}

=== Tennessee (regular) ===
{{Infobox election
| election_name = 1930 United States Senate election in Tennessee
| country = Tennessee
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Tennessee
| previous_year = 1924
| next_election = 1934 United States Senate special election in Tennessee
| next_year = 1934
| election_date = November 4, 1930
| image_size = x150px
| image1 = File:Hull-Cordell-LOC.jpg
| nominee1 = '''[[Cordell Hull]]'''
| party1 = Democratic Party (US)
| popular_vote1 = '''154,131'''
| percentage1 = '''71.30%'''
| image2 = Blank2x3.svg
| nominee2 = Paul E. Divine
| party2 = Republican Party (US)
| popular_vote2 = 58,650
| percentage2 = 27.13%
| map_image = 1930 United States Senate election in Tennessee results map by county.svg
| map_size = 
| map_caption = Results by county<br/>'''Hull''': {{legend0|#A5B0FF|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584CDE|70–80%}} {{legend0|#3933E5|80–90%}} {{legend0|#0D0596|>90%}}<br/>'''Divine''': {{legend0|#E27F7F|50–60%}} {{legend0|#D75D5D|60–70%}} {{legend0|#D72F30|70–80%}} {{legend0|#C21B18|80–90%}}
| title = Senator
| before_election = [[William E. Brock]]
| before_party = Democratic Party (US)
| after_election = [[Cordell Hull]]
| after_party = Democratic Party (US)
}}{{Main|1930 United States Senate special election in Tennessee}}

[[William E. Brock]] was not a candidate to the next term, instead choosing to return to his Chattanooga candy manufacturing business.  Instead, former Democratic congressman [[Cordell Hull]] was swept into the seat.

{{Election box begin no change
 | title      = Tennessee regular election<ref name=Clerk/><ref>{{Cite web |title=Our Campaigns - TN US Senate Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=90224 |access-date=June 19, 2020 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Cordell Hull]]
 | votes      = 154,131
 | percentage = 71.30
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Paul E. Divine
 | votes      = 58,650
 | percentage = 27.13
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = Sherman Bell
 | votes      = 3,392
 | percentage = 1.57
}}
{{Election box majority no change
 | votes      = 95,481
 | percentage = 44.17
}}
{{Election box turnout no change
 | votes      = 216,173
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

Hull was appointed [[United States Secretary of State]] and served there for 11 years, and in 1945, he was awarded the [[Nobel Peace Prize]] for "co-initiating the [[United Nations]]."
{{Clear}}

== Texas ==
{{Infobox election
| election_name = 1930 United States Senate election in Texas
| country = Texas
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Texas
| previous_year = 1924
| next_election = 1936 United States Senate election in Texas
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px
| image1 = File:Senator Morris Sheppard (cropped).jpg
| nominee1 = '''[[Morris Sheppard]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''266,550'''
| percentage1 = '''86.91%'''
| image2 = File:3x4.svg
| nominee2 = Doran Haesly
| party2 = Republican Party (United States)
| popular_vote2 = 39,047
| percentage2 = 12.73%
| title = U.S. Senator
| before_election = [[Morris Sheppard]]
| before_party = Democratic Party (United States)
| after_election = [[Morris Sheppard]]
| after_party = Democratic Party (United States)
| map_caption = County Results<ref>{{Cite book |last=Heard |first=Alexander |title=Southern Primaries and Elections 1920-1949 |last2=Strong |first2=Donald |publisher=University of Alabama Press |year=1950 |isbn=9780836955248 |pages=172-174}}</ref><br/>
'''Sheppard''': {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|>90%}}<br/>
'''Haesly''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}<br/>
'''No vote''': {{legend0|#656565ff|}}
| map_image = 1930 United States Senate election in Texas results map by county.svg
}}
{{Main|1930 United States Senate election in Texas}}
{{See also|List of United States senators from Texas}}
{{Election box begin no change
 | title      = 1930 United States Senate election in Texas<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Morris Sheppard]] (Incumbent)
 | votes      = 266,550
 | percentage = 86.91
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = D. J. Haesly
 | votes      = 39,047
 | percentage = 12.73
}}
{{Election box candidate with party link no change
 | party      = Socialist Party of America
 | candidate  = Guy L. Smith
 | votes      = 808
 | percentage = 0.26
}}
{{Election box candidate with party link no change
 | party      = Communist Party USA
 | candidate  = W. A. Berry
 | votes      = 296
 | percentage = 0.10
}}
{{Election box majority no change
 | votes      = 227,503
 | percentage = 74.19
}}
{{Election box turnout no change
 | votes      = 306,701
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}

{{clear}}

== Virginia ==
{{Main|1930 United States Senate election in Virginia}}
{{See also|List of United States senators from Virginia}}
{{Infobox election
| election_name = 1930 United States Senate Election in Virginia
| country = Virginia
| flag_year = 1861
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Virginia
| previous_year = 1924
| next_election = 1936 United States Senate election in Virginia
| next_year = 1936
| election_date = November 4, 1930
| turnout = 
| image1 = [[File:Picture of Carter Glass.jpg|x140px]]
| nominee1 = '''[[Carter Glass]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''112,002'''
| percentage1 = '''76.67%'''
| image2 = [[File:No image.svg|x120px]]
| nominee2 = [[J. Cloyd Byars]]
| party2 = Independent Democrat
| popular_vote2 = 26,091
| percentage2 = 17.86%
| image3 = [[File:No image.svg|x120px]]
| nominee3 = Joe C. Morgan
| party3 = Socialist Party of America
| popular_vote3 = 7,944
| percentage3 = 5.44%
| map_image = 1930 United States Senate election in Virginia results map by county.svg
| map_size = 300px
| map_caption = County and independent city results<br />'''Glass:''' {{legend0|#7996E2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|90-100%}}
| title = U.S. Senator
| before_election = [[Carter Glass]]
| before_party = Democratic Party (United States)
| after_election = [[Carter Glass]]
| after_party = Democratic Party (United States)
}}
{{Election box begin | title= 1930 United States Senate election in Virginia<ref name=Clerk/>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Carter Glass]] (Incumbent)
 | votes      = 112,002
 | percentage = 76.67
 | change     = +3.55%
}}
{{Election box candidate with party link
 | party      = Independent Democratic
 | candidate  = J. Cloyd Byars
 | votes      = 26,091
 | percentage = 17.86
 | change     = +17.86%
}}
{{Election box candidate with party link
 | party      = Socialist Party of America
 | candidate  = Joe C. Morgan
 | votes      = 7,944
 | percentage = 5.44
 | change     = +5.44%
}}
{{Election box candidate
 | party      = Write-ins
 | candidate  = 
 | votes      = 49
 | percentage = 0.03
 | change     = +0.03%
}}
{{Election box majority
 | votes      = 85,911
 | percentage = 58.81
 | change     = +9.87%
}}
{{Election box turnout
 | votes      = 146,086
 | percentage = 
 | change     = 
}}
{{Election box hold with party link without swing
 | winner     = Democratic Party (US)
}}
{{End}}
{{Clear}}

== West Virginia ==
{{Infobox election
| election_name      = 1930 United States Senate election in West Virginia
| country            = West Virginia
| flag_year          = 
| type               = presidential
| ongoing            = no
| previous_election  = 1924 United States Senate election in West Virginia
| previous_year      = 1924
| next_election      = 1936 United States Senate election in West Virginia
| next_year          = 1936
| election_date      = November 4, 1930
| image1             = Matthewneely.jpg
| nominee1           = '''[[Matthew M. Neely]]'''
| party1             = Democratic Party (United States)
| popular_vote1      = '''342,437'''
| percentage1        = '''61.91%'''
| image2             = 
| nominee2           = James Elwood Jones
| party2             = Republican Party (United States)
| popular_vote2      = 209,427
| percentage2        = 37.86%
| map_image          = 1930 United States Senate election in West Virginia results map by county.svg
| map_size           = 250px
| map_caption        = County results<br>'''Neely''': {{legend0|#A5B0FF|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584CDE|70–80%}}<br/>'''Jones''': {{legend0|#d75d5d|60–70%}}
| title              = U.S. Senator
| before_election    = [[Matthew M. Neely]]
| before_party       = Democratic Party (United States)
| after_election     = [[Matthew M. Neely]]
| after_party        = Democratic Party (United States)
}}
<!--{{Main|1930 United States Senate election in West Virginia}}-->
{{See also|List of United States senators from Virginia}}
{{Election box begin no change
 | title      = 1930 United States Senate election in West Virginia<ref name=Clerk/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Matthew M. Neely]]
 | votes      = 342,437
 | percentage = 61.91
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = James Elwood Jones
 | votes      = 209,427
 | percentage = 37.86
}}
{{Election box candidate with party link no change
 | party      = Prohibition Party
 | candidate  = John Wesley MacDonald
 | votes      = 1,293
 | percentage = 0.23
}}
{{Election box majority no change
 | votes      = 133,010
 | percentage = 24.05
}}
{{Election box turnout no change
 | votes      = 553,157
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Wyoming ==
{{See also|List of United States senators from Wyoming|1930 United States House of Representatives election in Wyoming}}

Six-term Republican [[Francis E. Warren]] had died November 24, 1929, and Republican [[Patrick Joseph Sullivan|Patrick J. Sullivan]] was appointed to continue the term, pending a special election in which he was not a candidate.

=== Wyoming (special)===
{{Infobox election
| election_name = 1930 United States Senate special election in Wyoming
| country = Wyoming
| flag_year = 
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Wyoming
| previous_year = 1924
| next_election = 1936 United States Senate election in Wyoming
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px

| image1 = Robert Davis Carey.jpg
| nominee1 = '''[[Robert D. Carey]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''42,726'''
| percentage1 = '''58.83%'''

| image2 = Harry Schwartz.jpg
| nominee2 = [[Harry Schwartz (U.S. senator)|Harry Schwartz]]
| party2 = Democratic Party (United States)
| popular_vote2 = 29,904
| percentage2 = 41.17%

| map_size = 250px
| map_image = 1930 United States Senate special election in Wyoming results map by county.svg
| map_caption = County results<br/>'''Carey''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#D72F30|70–80%}}<br/>'''Schwartz''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}

| title = U.S. Senator
| before_election = [[Patrick Joseph Sullivan|Patrick J. Sullivan]]
| before_party = Republican Party (United States)
| after_election = [[Robert D. Carey]]
| after_party = Republican Party (United States)
}}
{{Main|1930 United States Senate special election in Wyoming}}

{{Election box begin no change
 | title      =Wyoming special election<ref name=Clerk/><ref>{{Cite web |title=Our Campaigns - WY US Senate - Special Election Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=267920 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Robert D. Carey]]
 | votes      = 42,726
 | percentage = 58.83
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Henry H. Schwartz]]
 | votes      = 29,904
 | percentage = 41.17
}}
{{Election box majority no change
 | votes      = 12,822
 | percentage = 17.66
}}
{{Election box turnout no change
 | votes      = 72,630
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

=== Wyoming (regular) ===
{{Infobox election
| election_name = 1930 United States Senate election in Wyoming
| country = Wyoming
| flag_year = 
| type = presidential
| ongoing = no
| previous_election = 1924 United States Senate election in Wyoming
| previous_year = 1924
| next_election = 1936 United States Senate election in Wyoming
| next_year = 1936
| election_date = November 4, 1930
| image_size = x150px

| image1 = Robert Davis Carey.jpg
| nominee1 = '''[[Robert D. Carey]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''43,626'''
| percentage1 = '''59.05%'''

| image2 = Harry Schwartz.jpg
| nominee2 = [[Harry Schwartz (U.S. senator)|Harry Schwartz]]
| party2 = Democratic Party (United States)
| popular_vote2 = 30,259
| percentage2 = 40.95%

| map_size = 250px
| map_image = 1930 United States Senate election in Wyoming results map by county.svg
| map_caption = County results<br/>'''Carey''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#D72F30|70–80%}}<br/>'''Schwartz''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}

| title = U.S. Senator
| before_election = [[Patrick Joseph Sullivan|Patrick J. Sullivan]]
| before_party = Republican Party (United States)
| after_election = [[Robert D. Carey]]
| after_party = Republican Party (United States)
}}
{{Main|1930 United States Senate election in Wyoming}}
{{Election box begin no change
 | title      = Wyoming regular election<ref name=Clerk/><ref>{{Cite web |title=Our Campaigns - WY US Senate Race - Nov 04, 1930 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=59813 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Robert D. Carey]]
 | votes      = 43,524
 | percentage = 58.99
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Henry H. Schwartz]]
 | votes      = 30,259
 | percentage = 41.01
}}
{{Election box majority no change
 | votes      = 13,265
 | percentage = 17.98
}}
{{Election box turnout no change
 | votes      = 73,783
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

==See also==
* [[1930 United States elections]]
** [[1930 United States House of Representatives elections]]
* [[71st United States Congress]]
* [[72nd United States Congress]]

== Notes ==
{{Notelist}}

== References ==
{{Reflist}}
{{United States Senate elections}}
{{1930 United States elections}}

[[Category:1930 United States Senate elections| ]]