List of United States Senate elections
This list of election results only reflects general elections. Special elections, even those on the same election day, are not included.
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Contents
- 1 United States Senate elections, 1788 and 1789
- 2 United States Senate elections, 1790 and 1791
- 3 United States Senate elections, 1792 and 1793
- 4 United States Senate elections, 1794 and 1795
- 5 United States Senate elections, 1796 and 1797
- 6 United States Senate elections, 1798 and 1799
- 7 United States Senate elections, 1800 and 1801
- 8 United States Senate elections, 1802 and 1803
- 9 United States Senate elections, 1804 and 1805
- 10 United States Senate elections, 1806 and 1807
- 11 United States Senate elections, 1808 and 1809
- 12 United States Senate elections, 1810 and 1811
- 13 United States Senate elections, 1812 and 1813
- 14 United States Senate elections, 1814 and 1815
- 15 United States Senate elections, 1816 and 1817
- 16 United States Senate elections, 1818 and 1819
- 17 United States Senate elections, 1820 and 1821
- 18 United States Senate elections, 1822 and 1823
- 19 United States Senate elections, 1824 and 1825
- 20 United States Senate elections, 1826 and 1827
- 21 United States Senate elections, 1828 and 1829
- 22 United States Senate elections, 1830 and 1831
- 23 United States Senate elections, 1832 and 1833
- 24 United States Senate elections, 1834 and 1835
- 25 United States Senate elections, 1836 and 1837
- 26 United States Senate elections, 1838 and 1839
- 27 United States Senate elections, 1840 and 1841
- 28 United States Senate elections, 1842 and 1843
- 29 United States Senate elections, 1844 and 1845
- 30 United States Senate elections, 1846 and 1847
- 31 United States Senate elections, 1848 and 1849
- 32 United States Senate elections, 1850 and 1851
- 33 United States Senate elections, 1852 and 1853
- 34 United States Senate elections, 1854 and 1855
- 35 United States Senate elections, 1856 and 1857
- 36 United States Senate elections, 1858 and 1859
- 37 United States Senate elections, 1860 and 1861
- 38 United States Senate elections, 1862 and 1863
- 39 United States Senate elections, 1864 and 1865
- 40 United States Senate elections, 1866 and 1867
- 41 United States Senate elections, 1868 and 1869
- 42 United States Senate elections, 1870 and 1871
- 43 United States Senate elections, 1872 and 1873
- 44 United States Senate elections, 1874 and 1875
- 45 United States Senate elections, 1876 and 1877
- 46 United States Senate elections, 1878 and 1879
- 47 United States Senate elections, 1880 and 1881
- 48 United States Senate elections, 1882 and 1883
- 49 United States Senate elections, 1884 and 1885
- 50 United States Senate elections, 1886 and 1887
- 51 United States Senate elections, 1888 and 1889
- 52 United States Senate elections, 1890 and 1891
- 53 United States Senate elections, 1892 and 1893
- 54 United States Senate elections, 1894 and 1895
- 55 United States Senate elections, 1896 and 1897
- 56 United States Senate elections, 1898 and 1899
- 57 United States Senate elections, 1900 and 1901
- 58 United States Senate elections, 1902 and 1903
- 59 United States Senate elections, 1904 and 1905
- 60 United States Senate elections, 1906 and 1907
- 61 United States Senate elections, 1908 and 1909
- 62 United States Senate elections, 1910 and 1911
- 63 United States Senate elections, 1912 and 1913
- 64 United States Senate elections, 1914
- 65 United States Senate elections, 1916
- 66 United States Senate elections, 1918
- 67 United States Senate elections, 1920
- 68 United States Senate elections, 1922
- 69 United States Senate elections, 1924
- 70 United States Senate elections, 1926
- 71 United States Senate elections, 1928
- 72 United States Senate elections, 1930
- 73 United States Senate elections, 1932
- 74 United States Senate elections, 1934
- 75 United States Senate elections, 1936
- 76 United States Senate elections, 1938
- 77 United States Senate elections, 1940
- 78 United States Senate elections, 1942
- 79 United States Senate elections, 1944
- 80 United States Senate elections, 1946
- 81 United States Senate elections, 1948
- 82 United States Senate elections, 1950
- 83 United States Senate elections, 1952
- 84 United States Senate elections, 1954
- 85 United States Senate elections, 1956
- 86 United States Senate elections, 1958
- 87 United States Senate elections, 1960
- 88 United States Senate elections, 1962
- 89 United States Senate elections, 1964
- 90 United States Senate elections, 1966
- 91 United States Senate elections, 1968
- 92 United States Senate elections, 1970
- 93 United States Senate elections, 1972
- 94 United States Senate elections, 1974
- 95 United States Senate elections, 1976
- 96 United States Senate elections, 1978
- 97 United States Senate elections, 1980
- 98 United States Senate elections, 1982
- 99 United States Senate elections, 1984
- 100 United States Senate elections, 1986
- 101 United States Senate elections, 1988
- 102 United States Senate elections, 1990
- 103 United States Senate elections, 1992
- 104 United States Senate elections, 1994
- 105 United States Senate elections, 1996
- 106 United States Senate elections, 1998
- 107 United States Senate elections, 2000
- 108 United States Senate elections, 2002
- 109 United States Senate elections, 2004
- 110 United States Senate elections, 2006
- 111 United States Senate elections, 2008
- 112 United States Senate elections, 2010
- 113 United States Senate elections, 2012
- 114 United States Senate elections, 2014
- 115 United States Senate elections, 2016
- 116 United States Senate elections, 2018
- 117 United States Senate elections, 2020
- 118 United States Senate elections, 2022
- 119 See also
- 120 References
United States Senate elections, 1788 and 1789[edit]
These were the first Senate elections, which coincided with the election of President George Washington. As of this election, formal organized political parties had yet to form in the United States, but two political factions were present: The coalition of senators who supported George Washington's administration were known as "Pro-Administration," and the senators against him as "Anti-Administration." Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]
| V1 | |||||||||
| AA1 | AA2 | AA3 | AA4 | AA5 | AA6 | AA7 | P13 | P12 | P11 |
| Majority → | |||||||||
| P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 | P10 |
| V2 | |||||||||
United States Senate elections, 1790 and 1791[edit]
These were the second series of elections. In these elections, terms were up for the nine Senators in Class 1. As of these elections, formal organized political parties had yet to form in the United States, but two political factions were present: The coalition of Senators who supported President George Washington's administration were known as the Pro-Administration Party, and the Senators against him as the Anti-Administration Party.
Note: There were no political parties in this Congress. Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]
| A3 | A2 | A1 | |||||||
| A4 | A5 | A6 Re-elected |
A7 Gain |
V1 A Loss |
P18 Hold |
P17 Hold |
P16 Re-elected |
P15 Re-elected |
P14 Re-elected |
| Majority → | |||||||||
| P4 | P5 | P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 Re-elected |
| P3 | P2 | P1 | |||||||
United States Senate elections, 1792 and 1793[edit]
These elections coincided with President George Washington's unanimous re-election. In these elections, terms were up for the ten senators in class 2.
Note: There were no political parties in this Congress. Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]
| A5 | A4 | A3 | A2 | A1 | |||||
| A6 | A7 Re-elected |
A8 Re-elected |
A9 Re-elected |
A10 Hold |
A11 Gain |
V1 | P18 Gain |
P17 Gain |
P16 Hold |
| Majority → | |||||||||
| P6 | P7 | P8 | P9 | P10 | P11 | P12 | P13 | P14 Re-elected |
P15 Hold |
| P5 | P4 | P3 | P2 | P1 | |||||
United States Senate elections, 1794 and 1795[edit]
These elections had the formation of organized political parties in the United States, with the Federalist Party emerging from the Pro Administration coalition, and the Democratic-Republican Party emerging from the Anti-Administration coalition.
| AA5 | AA4 | AA3 | AA2 | AA1 | |||||
| AA6 | AA7 | AA8 | DR1 Gain |
DR2 Gain |
V1 | F8 Gain |
F7 Gain |
F6 Gain |
F5 Gain |
| F4 Gain | |||||||||
| P6 | P7 | P8 | P9 | P10 | P11 | F1 Gain |
F2 Gain |
F3 Gain | |
| P5 | P4 | P3 | P2 | P1 | |||||
United States Senate elections, 1796 and 1797[edit]
These elections coincided with John Adams's election as President. His ruling Federalist Party gained one seat.
| DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | ||||
| DR7 Re-elected |
DR8 Hold |
DR9 Hold |
DR10 Gain |
V1 Gain |
F21 Gain |
F20 Hold |
F19 Hold |
F18 Hold |
F17 Hold |
| Majority → | |||||||||
| F7 Re-elected |
F8 Re-elected |
F9 Re-elected |
F10 Re-elected |
F11 Re-elected |
F12 Hold |
F13 Hold |
F14 Hold |
F15 Hold |
F16 Hold |
| F6 | F5 | F4 | F3 | F2 | F1 | ||||
United States Senate elections, 1798 and 1799[edit]
These elections were held at the middle of President John Adams's administration and had no net change in political control of the Senate.
| DR6 Re-elected |
DR5 Re-elected |
DR4 | DR3 | DR2 | DR1 | ||||
| DR7 Hold |
DR8 Hold |
DR9 Hold |
V1 DR loss |
F22 Hold |
F21 Hold |
F20 Re-elected |
F19 Re-elected |
F18 Re-elected |
F17 |
| Majority → | |||||||||
| F7 | F8 | F9 | F10 | F11 | F12 | F13 | F14 | F15 | F16 |
| F6 | F5 | F4 | F3 | F2 | F1 | ||||
United States Senate elections, 1800 and 1801[edit]
Coinciding with their takeover of the White House, the Democratic-Republicans took control of the Senate. Although the Federalists began the next (7th) Congress with a slim majority, they lost their majority shortly thereafter due to mid-year special elections.
| DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | ||||
| DR7 | DR8 | DR9 Re-elected |
DR10 Hold |
DR11 Gain |
DR12 Gain |
DR13 Gain |
DR14 Gain |
V1 F loss |
F17 Gain |
| Majority → | |||||||||
| F16 Re-elected | |||||||||
| F7 | F8 | F9 | F10 | F11 | F12 | F13 | F14 | F15 Re-elected | |
| F6 | F5 | F4 | F3 | F2 | F1 | ||||
United States Senate elections, 1802 and 1803[edit]
These elections had the Democratic-Republicans assume an overwhelming control of the Senate.
| DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | ||||
| DR7 | DR8 | DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 Re-elected |
| Majority → | DR17 Re-elected | ||||||||
| F7 Re-elected |
F8 Re-elected |
F9 Hold |
V1 Fed loss |
DR22 Gain |
DR21 Gain |
DR20 Gain |
DR19 Gain |
DR18 Gain | |
| F6 | F5 | F4 | F3 | F2 | F1 | ||||
United States Senate elections, 1804 and 1805[edit]
These elections expanded the Democratic-Republicans' overwhelming control of the Senate. The Federalists went into the elections with such a small share of seats (9 out of 34, or 26%) that even had they won every election, they would have still remained a minority caucus.
| DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | |||
| DR8 | DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 |
| Majority → | DR18 | ||||||||
| DR27 Gain |
DR26 Gain |
DR25 Hold |
DR24 Hold |
DR23 Hold |
DR22 Hold |
DR21 Re-elected |
DR20 Re-elected |
DR19 Re-elected | |
| F7 Re-elected |
F6 Re-elected |
F5 | F4 | F3 | F2 | F1 | |||
United States Senate elections, 1806 and 1807[edit]
| DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | |||
| DR8 | DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 |
| Majority → | DR18 | ||||||||
| DR27 Hold |
DR26 Hold |
DR25 Hold |
DR24 Re-elected |
DR23 Re-elected |
DR22 Re-elected |
DR21 Re-elected |
DR20 Re-elected |
DR19 Re-elected | |
| DR28 Gain |
F6 Re-elected |
F5 | F4 | F3 | F2 | F1 | |||
United States Senate elections, 1808 and 1809[edit]
| DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | |||
| DR8 | DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 |
| Majority → | DR18 | ||||||||
| DR27 Hold |
DR26 Hold |
DR25 Hold |
DR24 Re-elected |
DR23 Re-elected |
DR22 Re-elected |
DR21 Re-elected |
DR20 Re-elected |
DR19 | |
| F7 Gain |
F6 Hold |
F5 Re-elected |
F4 Re-elected |
F3 | F2 | F1 | |||
United States Senate elections, 1810 and 1811[edit]
The Democratic-Republicans held their majority unchanged. The minority Federalists had gone into the elections with such a small share of Senate seats (8 out of 34, or 23.5%) that they had won all of the elections, they would still not have controlled a majority.
| DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | |||
| DR8 | DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 |
| Majority → | DR18 Hold | ||||||||
| V1 F Loss |
DR26 Re-elected |
DR25 Re-elected |
DR24 Re-elected |
DR23 Re-elected |
DR22 Re-elected |
DR21 Re-elected |
DR20 Hold |
DR19 Hold | |
| F7 Re-elected |
F6 | F5 | F4 | F3 | F2 | F1 | |||
United States Senate elections, 1812 and 1813[edit]
Coinciding with President James Madison's re-election, the Democratic-Republican Party lost two seats but still retained an overwhelming majority in the Senate. As in recent elections, the minority Federalists had gone into the elections with such a small share of Senate seats that if they had won every one of the elections, they would still not have controlled a majority.
| DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | ||
| DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 | DR18 |
| Majority → | DR19 | ||||||||
| V1 DR Loss |
DR27 Hold |
DR26 Re-elected |
DR25 Re-elected |
DR24 Hold |
DR23 Hold |
DR22 Hold |
DR21 Hold |
DR20 Hold | |
| V2 F Loss |
F6 Gain |
F5 Re-elected |
F5 | F4 | F3 | F2 | F1 | ||
United States Senate elections, 1814 and 1815[edit]
The Democratic-Republicans lost a seat but still retained an overwhelming majority in the Senate. Unlike in recent elections, the minority Federalists had gone into the elections with a change of regaining their long-lost majority had they swept almost all the seats. However, only one seat switched parties. Two seats held by Democratic-Republicans were left unfilled until long after the next Congress began.
| DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | ||
| DR9 | DR10 | DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 | DR18 |
| Majority → | DR19 Re-elected | ||||||||
| F9 Re-elected |
F10 Re-elected |
F11 Gain |
V1 DR Loss |
V2 DR Loss |
DR23 Hold |
DR22 Hold |
DR21 Hold |
DR20 Hold | |
| F8 Re-elected |
F7 Re-elected |
F6 | F5 | F4 | F3 | F2 | F1 | ||
United States Senate elections, 1816 and 1817[edit]
| DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | |
| DR10 | DR11 | DR12 | DR13 | DR14 | DR15 Gain |
DR16 Gain |
DR17 Re-elected |
DR18 Hold |
DR19 Hold |
| Majority → | DR20 Hold | ||||||||
| F10 | F11 Hold |
F12 Gain |
F13 Gain |
DR25 Gain |
DR24 Gain |
DR23 Hold |
DR22 Hold |
DR21 Hold | |
| F9 | F8 | F7 | F6 | F5 | F4 | F3 | F2 | F1 | |
United States Senate elections, 1818 and 1819[edit]
| DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 |
| DR11 | DR12 | DR13 | DR14 | DR15 | DR16 | DR17 | DR18 | DR19 Re-elected |
DR20 Re-elected |
| Majority → | DR21 Re-elected | ||||||||
| V1 F Loss |
DR30 New seat |
DR29 Gain |
DR28 Hold |
DR27 Hold |
DR26 Hold |
DR25 Hold |
DR24 Hold |
DR23 Hold |
DR22 Hold |
| V2 F Loss |
F9 | F8 | F7 | F6 | F5 | F4 | F3 | F2 | F1 |
United States Senate elections, 1820 and 1821[edit]
| DR1 | DR2 | DR3 | |||||||
| DR13 | DR12 | DR11 | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 | DR4 |
| DR14 | DR15 | DR16 | DR17 | DR18 | DR19 | DR20 | DR21 | DR22 | DR23 |
| Majority → | DR24 | ||||||||
| DR33 Hold |
DR32 Re-elected |
DR31 Re-elected |
DR30 Re-elected |
DR29 Re-elected |
DR28 Re-elected |
DR27 | DR26 | DR25 | |
| DR34 Hold |
DR35 Hold |
DR36 Gain |
DR37 Gain |
DR38 Gain |
DR39 Gain |
V1 | V2 | V3 | F4 Re-elected |
| F1 | F2 | F3 | |||||||
United States Senate elections, 1822 and 1823[edit]
| DR1 | DR2 | DR3 | DR4 | ||||||
| DR14 | DR13 | DR12 | DR11 | DR10 | DR9 | DR8 | DR7 | DR6 | DR5 |
| DR15 | DR16 | DR17 | DR18 | DR119 | DR20 | DR21 | DR22 | DR23 | DR24 |
| Majority → | DR25 | ||||||||
| DR34 Hold |
DR33 Hold |
DR32 Hold |
DR31 Hold |
DR30 | DR29 | DR28 | DR27 | DR26 | |
| DR35 Re-elected |
DR36 Re-elected |
DR37 Re-elected |
DR38 Re-elected |
DR39 Re-elected |
DR40 Re-elected |
DR41 Re-elected |
DR42 Re-elected |
DR43 Re-elected |
DR44 Re-elected |
| F1 | F2 | F3 Re-elected |
V1 | ||||||
United States Senate elections, 1824 and 1825[edit]
The elections of 1824 and 1825 saw the Jacksonians gain a majority over the Anti-Jacksonians (sometimes called the "National Republican Party").
| Factions: | DRa/Fa# = Adams-Clay factions | DRc# = Crawford faction | DRj# = Jackson faction |
|---|
| AJ1 Gain |
AJ2 Gain |
AJ3 Gain |
AJ4 Gain | ||||||
|---|---|---|---|---|---|---|---|---|---|
| DRc3 | DRc2 | DRc1 | DRa11 | DRa10 | DRa9 | V2 Fa Loss |
V1 DR Loss |
AJ6 Gain |
AJ5 Gain |
| DRc4 | DRc5 | DRc6 | DRc7 | DRc8 | DRc9 | J1 Gain |
J2 Gain |
J3 Gain |
J4 Gain |
| DRj3 | DRj2 | DRj1 | DRc20 | DRc19 | DRc18 | DRc17 | DRc16 | J6 Gain |
J5 Gain |
| DRj4 | DRj5 | DRj6 | DRj7 | DRj8 | DRj9 | DRj10 | DRj11 | J7 Gain |
J8 Gain |
| Fa1 | Fa2 | Fa3 | Fa4 | ||||||
United States Senate elections, 1826 and 1827[edit]
| A1 | A2 | A3 | A4 | ||||||
| A14 | A13 | A12 | A11 | A10 | A9 | A8 | A7 | A6 | A5 |
| A15 Re-elected |
A16 Re-elected |
A17 Re-elected |
A18 Re-elected |
A19 Hold |
A20 Gain |
V1 Gain |
J27 Gain |
J26 Gain |
J25 Hold |
| Majority → | J24 Hold | ||||||||
| J15 | J16 | J17 | J18 | J19 Re-elected |
J20 Re-elected |
J21 Re-elected |
J22 Re-elected |
J23 Hold | |
| J14 | J13 | J12 | J11 | J10 | J9 | J8 | J7 | J6 | J5 |
| J1 | J2 | J3 | J4 | ||||||
United States Senate elections, 1828 and 1829[edit]
| AJ1 | AJ2 | AJ3 | AJ4 | ||||||
| AJ14 | AJ13 | AJ12 | AJ11 | AJ10 | AJ9 | AJ8 | AJ7 | AJ6 | AJ5 |
| AJ15 | AJ16 | AJ17 Re-elected |
AJ18 Re-elected |
AJ19 Re-elected |
AJ20 Gain |
AJ21 Gain |
AJ22 Gain |
J26 Gain |
J25 Gain |
| Majority → | J24 Hold | ||||||||
| J15 | J16 | J17 Re-elected |
J18 Re-elected |
J19 Re-elected |
J20 Re-elected |
J21 Re-elected |
J22 Hold |
J23 Hold | |
| J14 | J13 | J12 | J11 | J10 | J9 | J8 | J7 | J6 | J5 |
| J1 | J2 | J3 | J4 | ||||||
United States Senate elections, 1830 and 1831[edit]
| AJ1 | AJ2 | AJ3 | AJ4 | ||||||
| AJ14 | AJ13 | AJ12 | AJ11 | AJ10 | AJ9 | AJ8 | AJ7 | AJ6 | AJ5 |
| AJ15 Re-elected |
AJ16 Re-elected |
AJ17 Re-elected |
AJ18 Hold |
AJ19 Hold |
AJ20 Hold |
V1 | N1 Gain |
J26 Gain |
J25 Gain |
| Majority → | J24 Gain | ||||||||
| J15 | J16 | J17 | J18 | J19 Re-elected |
J20 Re-elected |
J21 Hold |
J22 Hold |
J23 Hold | |
| J14 | J13 | J12 | J11 | J10 | J9 | J8 | J7 | J6 | J5 |
| J1 | J2 | J3 | J4 | ||||||
United States Senate elections, 1832 and 1833[edit]
| AJ1 | AJ2 | AJ3 | AJ4 | ||||||
| AJ14 | AJ13 | AJ12 | AJ11 | AJ10 | AJ9 | AJ8 | AJ7 | AJ6 | AJ5 |
| AJ15 | AJ16 Re-elected |
AJ17 Re-elected |
AJ18 Re-elected |
AJ19 Hold |
AJ20 Hold |
AJ21 Gain |
AJ22 Gain |
AJ23 Gain |
N1 |
| Plurality ↑ | N2 | ||||||||
| J15 | J16 Re-elected |
J17 Re-elected |
J18 Re-elected |
J19 Hold |
J20 Gain |
J21 Gain |
V1 Loss |
V2 Loss | |
| J14 | J13 | J12 | J11 | J10 | J9 | J8 | J7 | J6 | J5 |
| J1 | J2 | J3 | J4 | ||||||
United States Senate elections, 1834 and 1835[edit]
| AJ1 | AJ2 | AJ3 | AJ4 | ||||||
| AJ14 | AJ13 | AJ12 | AJ11 | AJ10 | AJ9 | AJ8 | AJ7 | AJ6 | AJ5 |
| AJ15 | AJ16 | AJ17 | AJ18 | AJ19 Re-elected |
AJ20 Re-elected |
AJ21 Re-elected |
AJ22 Hold |
AJ23 Gain |
AJ24 Gain |
| Plurality → | |||||||||
| J15 Re-elected |
J16 Re-elected |
J17 Re-elected |
J18 Re-elected |
J19 Gain |
J20 Gain |
J21 Gain |
N1 | N2 Re-elected |
V1 Loss |
| J14 Re-elected |
J13 | J12 | J11 | J10 | J9 | J8 | J7 | J6 | J5 |
| J1 | J2 | J3 | J4 | ||||||
United States Senate elections, 1836 and 1837[edit]
| AJ1 | AJ2 | AJ3 | AJ4 | AJ5 | AJ6 | ||||
| W16 Re-elected New party |
W15 Re-elected New party |
W14 Re-elected New party |
W13 Re-elected New party |
AJ12 | AJ11 | AJ10 | AJ9 | AJ8 | AJ7 |
| W17 Hold New party |
N1 | D34 Gain |
D33 Gain |
D32 Gain |
D31 Hold New party |
D30 Hold New party |
D29 Re-elected New party |
D28 Re-elected New party |
D27 Re-elected New party |
| Majority → | |||||||||
| J17 | J18 | J19 | J20 | J21 | J22 | D23 Re-elected New party |
D24 Re-elected New party |
D25 Re-elected New party |
D26 Re-elected New party |
| J16 | J15 | J14 | J13 | J12 | J11 | J10 | J9 | J8 | J7 |
| J1 | J2 | J3 | J4 | J5 | J6 | ||||
United States Senate elections, 1838 and 1839[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | ||||
| D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 |
| D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 Re-elected |
| Majority → | D27 Re-elected | ||||||||
| W17 Hold |
W18 Gain |
W19 Gain |
W20 Gain |
V4 D Loss |
V3 D Loss |
V2 D Loss |
V1 D Loss |
D28 Hold | |
| W16 Hold |
W15 Re-elected |
W14 Re-elected |
W13 Re-elected |
W12 Re-elected |
W11 Re-elected |
W10 | W9 | W8 | W7 |
| W1 | W2 | W3 | W4 | W5 | W6 | ||||
United States Senate elections, 1840 and 1841[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | ||||
| D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 |
| D17 Re-elected |
D18 Re-elected |
D19 Re-elected |
D20 Hold |
D21 Hold |
D22 Re-elected |
V3 D Loss |
V2 | V1 | W27 Gain |
| Majority → | |||||||||
| W17 Hold |
W18 Re-elected |
W19 Hold |
W20 Hold |
W21 Re-elected |
W22 Gain |
W23 Gain |
W24 Gain |
W25 Gain |
W26 Gain |
| W16 | W15 | W14 | W13 | W12 | W11 | W10 | W9 | W8 | W7 |
| W1 | W2 | W3 | W4 | W5 | W6 | ||||
United States Senate elections, 1842 and 1843[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | ||||
| D16 Re-elected |
D15 Re-elected |
D14 Re-elected |
D13 Re-elected |
D12 Re-elected |
D11 Re-elected |
D10 | D9 | D8 | D7 |
| D17 Re-elected |
D18 Hold |
D19 Hold |
D20 Hold |
D21 Hold |
D22 Gain |
D23 Gain |
V2 | V1 | W27 Hold |
| Majority → | W26 Hold | ||||||||
| W17 | W18 | W19 | W20 | W21 | W22 | W23 | W24 Re-elected |
W25 Re-elected | |
| W16 | W15 | W14 | W13 | W12 | W11 | W10 | W9 | W8 | W7 |
| W1 | W2 | W3 | W4 | W5 | W6 | ||||
United States Senate elections, 1844 and 1845[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | |||
| D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 |
| D18 | D19 | D20 Re-elected |
D21 Re-elected |
D22 Re-elected |
D23 Re-elected |
D24 Gain |
D25 Gain |
D26 Gain |
D27 Gain |
| Majority → | |||||||||
| W18 Re-elected |
W19 Re-elected |
W20 Hold |
W21 Hold |
W22 Hold |
W23 Gain |
W24 Gain |
V1 W Loss |
V2 New seat |
V3 New seat |
| W17 Re-elected |
W16 | W15 | W14 | W13 | W12 | W11 | W10 | W9 | W8 |
| W1 | W2 | W3 | W4 | W5 | W6 | W7 | |||
United States Senate elections, 1846 and 1847[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | |
| D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 |
| D20 | D21 | D22 | D23 | D24 | D25 | D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
| Majority → | D30 Hold | ||||||||
| V1 W Loss |
V2 New state |
V3 New state |
ID1 Gain |
D35 Gain |
D34 Gain |
D33 Gain |
D32 Hold |
D31 Hold | |
| W19 Hold |
W18 Hold |
W17 Hold |
W16 Re-elected |
W15 Re-elected |
W14 Re-elected |
W13 Re-elected |
W12 | W11 | W10 |
| W1 | W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | |
United States Senate elections, 1848 and 1849[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 Re-elected |
D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Hold |
| Majority → | D31 Hold | ||||||||
| W21 Gain |
W22 Gain |
W23 Gain |
W24 Gain |
W25 Gain |
ID1 | FS1 Gain |
D33 Gain |
D32 Hold | |
| W20 Hold |
W19 Re-elected |
W18 Re-elected |
W17 Re-elected |
W16 | W15 | W14 | W13 | W12 | W11 |
| W1 | W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | W10 |
United States Senate elections, 1850 and 1851[edit]
| D1 | |||||||||
| D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 |
| D21 | D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 |
| D22 | D23 Re-elected |
D24 Re-elected |
D25 Re-elected |
D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Hold |
D31 Hold |
| Majority → | D32 Gain | ||||||||
| V1 W Loss |
V2 W Loss |
FS1 | FS2 | V3 D Loss |
V4 D Loss |
V5 D Loss |
D34 Gain |
D33 Gain | |
| W21 Gain |
W20 Gain |
W19 Hold |
W18 Re-elected |
W17 | W16 | W15 | W14 | W13 | W12 |
| W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | W10 | W11 |
| W1 | |||||||||
United States Senate elections, 1852 and 1853[edit]
| D1 | |||||||||
| D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 |
| D21 | D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 |
| D22 | D23 | D24 | D25 | D26 | D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
| Majority → | D32 Hold | ||||||||
| KN1 Gain |
FS1 | FS2 | V1 D Loss |
V2 D Loss |
D36 Gain |
D35 Gain |
D34 Hold |
D33 Hold | |
| V3 W Loss |
V4 W Loss |
V5 W Loss |
W18 Gain |
W17 Hold |
W16 Hold |
W15 Re-elected |
W14 | W13 | W12 |
| W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | W10 | W11 |
| W1 | |||||||||
United States Senate elections, 1854 and 1855[edit]
| D1 | |||||||||
| D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 |
| D21 | D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 |
| D22 | D23 | D24 | D25 | D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Hold |
D30 Gain |
D31 Gain |
| Majority → | D32 Gain | ||||||||
| V2 | V3 | V4 | V5 D Loss |
V6 D Loss |
V7 D Loss |
V8 D Loss |
V9 D Loss |
D33 Gain | |
| V1 W Loss |
KN1 | FS2 Gain |
FS1 | R3 Gain |
R2 Gain |
R1 Gain |
W14 Hold |
W13 Re-elected |
W12 Re-elected |
| W2 | W3 | W4 | W5 | W6 | W7 | W8 | W9 | W10 | W11 |
| W1 | |||||||||
United States Senate elections, 1856 and 1857[edit]
The young Republican Party assumed its position as one of the United States's two main political parties. The Whigs and Free Soilers were gone by the time the next Congress began.
| D1 | |||||||||
| D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 |
| D21 | D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 |
| D22 | D23 | D24 | D25 | D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
| Majority → | D32 Hold | ||||||||
| FS1 | KN1 | KN2 Gain |
V1 W Loss |
V2 | V3 | V4 | D34 Gain |
D33 Hold | |
| R15 Gain |
R14 Re-elected Diff. party |
R13 Hold |
R12 Re-elected |
R11 Re-elected |
R10 | R9 | R8 | R7 | R6 |
| W2 | W3 | R1 Gain |
R2 Gain |
R3 Gain |
R4 Gain |
R5 Gain |
R1 | R2 | R3 |
| W1 | |||||||||
United States Senate elections, 1858 and 1859[edit]
| D3 | D2 | D1 | |||||||
| D4 | D5 | D6 | D7 | D8 | D9 | D10 | D11 | D12 | D13 |
| D23 | D22 | D21 | D20 | D19 | D18 | D17 | D16 | D15 | D14 |
| D24 | D25 | D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
D32 Re-elected |
D33 Hold |
| Majority → | D34 Hold | ||||||||
| R24 Gain |
R25 Gain |
KN1 | KN2 | V1 D Loss |
D38 Gain |
D37 Gain |
D36 Hold |
D35 Hold | |
| R23 Gain |
R22 Gain |
R21 Gain |
R20 Re-elected |
R19 Re-elected |
R18 Re-elected |
R17 | R16 | R15 | R14 |
| R4 | R5 | R6 | R7 | R8 | R9 | R10 | R11 | R12 | R13 |
| R3 | R2 | R1 | |||||||
United States Senate elections, 1860 and 1861[edit]
| V3 D Loss |
V2 D Loss |
V1 D Loss |
|||||||
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D23 | D22 | D24 | D25 Re-elected |
D26 Re-elected |
D27 Hold |
D28 Hold |
D29 Hold |
D30 Gain |
| Plurality ↑ | KN1 | ||||||||
| R21 Re-elected |
R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
R25 Hold |
R26 Hold |
R27 Gain |
R28 Gain |
R29 Gain | |
| R20 Re-elected |
R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
| V4 D Loss |
V5 D Loss |
V6 D Loss |
|||||||
United States Senate elections, 1862 and 1863[edit]
| V4 | V3 | V2 | V1 | ||||||
| V5 | V6 | V7 No race |
V8 No race |
V9 No race |
V10 No race |
D1 | D2 | D3 | D4 |
| U4 Hold |
U3 | U2 | U1 | D10 Gain |
D9 Hold |
D8 Hold |
D7 Re-elected |
D6 | D5 |
| U5 Hold |
UU1 Gain |
R32 Gain |
R31 Gain |
R30 Re-elected |
R29 Re-elected |
R28 Hold |
R27 Hold |
R26 Re-elected |
R25 Re-elected |
| Majority → | |||||||||
| R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
| R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 |
| V16 | V15 | V14 | V13 | V12 | V11 | R1 | R2 | R3 | R4 |
| V17 | V18 | V19 | V20 | ||||||
United States Senate elections, 1864 and 1865[edit]
These elections, corresponding with Abraham Lincoln's re-election as president, saw the Republicans gain two seats. As these elections occurred during the Civil War, most of the Southern states were absent.
| V5 Seceded |
V4 Seceded |
V3 Seceded |
V2 | V1 | |||||
| V6 Seceded |
V7 Seceded |
V8 Seceded |
V9 Seceded |
V10 Seceded |
V11 Seceded |
D1 | D2 | D3 | D4 |
| UU2 | UU3 | UU4 | U1 | U2 | D9 Gain |
D8 Hold |
D7 Re-elected |
D6 | D5 |
| UU1 | R33 Gain |
R32 Gain |
R31 Re-elected new party |
R30 Hold |
R29 Hold |
R28 Hold |
R27 Re-elected |
R26 Re-elected |
R25 Re-elected |
| Majority → | |||||||||
| R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 Re-elected |
R24 Re-elected |
| R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 |
| V17 | V16 | V15 | V14 | V13 | V12 U Loss |
R1 | R2 | R3 | R4 |
| V18 | V19 | V20 | V21 | V22 | |||||
United States Senate elections, 1866 and 1867[edit]
| V6 Seceded |
V5 Seceded |
V4 Seceded |
V3 Seceded |
V2 | V1 | ||||
| V7 Seceded |
V8 Seceded |
V9 Seceded |
V10 Seceded |
D1 | D2 | D3 | D4 | D5 | D6 |
| R37 Hold |
R38 Gain |
R39 Gain |
UU1 | U1 | U2 | D10 Gain |
D9 Gain |
D8 | D7 |
| R36 Hold |
R35 Hold |
R34 Hold |
R33 Hold |
R32 Hold |
R31 Hold |
R30 Hold |
R29 Re-elected |
R28 Re-elected |
R17 Re-elected |
| Majority → | |||||||||
| R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 Re-elected |
R26 Re-elected |
| R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 |
| V14 | V13 | V12 | V11 | R1 | R2 | R3 | R4 | R5 | R6 |
| V15 | V16 | V17 | V18 | V19 | V20 | ||||
United States Senate elections, 1868 and 1869[edit]
| D3 | D2 | D1 | V4 Seceded |
V3 Seceded |
V2 Seceded |
V1 | |||
| D4 | D5 Hold |
D6 Hold |
D7 Gain |
D8 Gain |
D9 Gain |
R57 Gain |
R56 Gain |
R55 Gain |
R54 Hold |
| R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Hold |
R49 Hold |
R50 Hold |
R51 Hold |
R52 Hold |
R53 Hold |
| R43 Re-elected |
R42 Re-elected |
R41 Re-elected |
R40 | R39 | R38 | R37 | R36 | R35 | R34 |
| Majority → | |||||||||
| R24 | R25 | R26 | R27 | R28 | R29 | R30 | R31 | R32 | R33 |
| R23 | R22 | R21 | R20 | R19 | R18 | R17 | R16 | R15 | R14 |
| R4 | R5 | R6 | R7 | R8 | R9 | R10 | R11 | R12 | R13 |
| R3 | R2 | R1 | V5 | V6 | V7 | V8 | |||
United States Senate elections, 1870 and 1871[edit]
| D7 | D6 | D5 | D4 | D3 | D2 | D1 | |||
| D8 Hold |
D9 Hold |
D10 Hold |
D11 Gain |
D12 Gain |
D13 Gain |
D14 Gain |
V1 D Loss |
V2 R Loss |
R58 Hold |
| R48 Re-elected |
R49 Hold |
R50 Hold |
R51 Hold |
R52 Hold |
R53 Hold |
R54 Hold |
R55 Hold |
R56 Hold |
R57 Hold |
| R47 Re-elected |
R46 Re-elected |
R45 Re-elected |
R44 Re-elected |
R43 Re-elected |
R42 | R41 | R40 | R39 | R38 |
| Majority → | R37 | ||||||||
| R28 | R29 | R30 | R31 | R32 | R33 | R34 | R35 | R36 | |
| R27 | R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 | R18 |
| R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 |
| R7 | R6 | R5 | R4 | R3 | R2 | R1 | |||
United States Senate elections, 1872 and 1873[edit]
| D7 | D6 | D5 | D4 | D3 | D2 | D1 | |||
| D8 | D9 | D10 | D11 | D12 | D13 | D14 | D15 Hold |
D16 Hold |
D17 Hold |
| R48 Hold |
R49 Hold |
R50 Hold |
R51 Hold |
R52 Hold |
R53 Hold |
R54 Gain |
V1 R Loss |
D19 Gain |
D18 Gain |
| R47 Hold |
R46 Hold |
R45 Hold |
R44 Re-elected |
R43 Re-elected |
R42 Re-elected |
R41 Re-elected |
R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
| Majority → | R37 Re-elected | ||||||||
| R28 | R29 | R30 | R31 | R32 | R33 | R34 | R35 | R36 | |
| R27 | R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 | R18 |
| R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 |
| R7 | R6 | R5 | R4 | R3 | R2 | R1 | |||
United States Senate elections, 1874 and 1875[edit]
| D7 | D6 | D5 | D4 | D3 | D2 | D1 | |||
| D8 | D9 | D10 | D11 | D12 | D13 | D14 | D15 Re-elected |
D16 Re-elected |
D17 Hold |
| D27 Gain |
D26 Gain |
D25 Gain |
D24 Gain |
D23 Gain |
D22 Gain |
D21 Gain |
D20 Gain |
D19 Gain |
D18 Hold |
| D28 Gain |
AM1 Gain |
V1 | LR2 | LR1 | R42 Hold |
R41 Hold |
R40 Hold |
R39 Hold |
R38 Hold |
| Majority → | R37 Hold | ||||||||
| R28 | R29 | R30 | R31 | R32 | R33 Re-elected |
R34 Re-elected |
R35 Hold |
R36 Hold | |
| R27 | R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 | R18 |
| R8 | R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 |
| R7 | R6 | R5 | R4 | R3 | R2 | R1 | |||
United States Senate elections, 1876 and 1877[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 Hold |
D27 Hold |
D26 Hold |
D25 Re-elected |
D24 Re-elected |
D23 Re-elected |
D22 Re-elected |
D21 | D20 | D19 |
| D29 Hold |
D30 Hold |
D31 Gain |
D32 Gain |
D33 Gain |
D34 Gain |
D35 Gain |
I1 Gain |
AM1 | R39 Hold |
| Majority → | |||||||||
| R29 Re-elected |
R30 Re-elected |
R31 Re-elected |
R32 Re-elected |
R33 Re-elected |
R34 Hold |
R35 Hold |
R36 Hold |
R37 Hold |
R38 Hold |
| R28 | R27 | R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1878 and 1879[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 | D27 | D26 | D25 | D24 | D23 | D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Re-elected |
D31 Hold |
D32 Hold |
D33 Hold |
D34 Hold |
D35 Hold |
D36 Gain |
D37 Gain |
D38 Gain |
| Majority → | D39 Gain | ||||||||
| R29 Hold |
R30 Hold |
R31 Gain |
V1 R loss |
AM1 | I1 | D42 Gain |
D41 Gain |
D40 Gain | |
| R28 Hold |
R27 Re-elected |
R26 Re-elected |
R25 Re-elected |
R24 Re-elected |
R23 Re-elected |
R22 Re-elected |
R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1880 and 1881[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 | D27 | D26 | D25 | D24 | D23 | D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
D33 Re-elected |
D33 Hold |
D34 Hold |
D35 Hold |
D36 Gain |
D37 Gain |
I1 |
| Plurality ↓ | RA1 Gain | ||||||||
| R29 Hold |
R30 Hold |
R31 Gain |
R32 Gain |
R33 Gain |
R34 Gain |
R35 Gain |
R36 Gain |
R37 Gain | |
| R28 Hold |
R27 Hold |
R26 Re-elected |
R25 Re-elected |
R24 Re-elected |
R23 Re-elected |
R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1882 and 1883[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 Re-elected |
D27 Re-elected |
D26 Re-elected |
D25 Re-elected |
D24 Re-elected |
D23 | D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
D32 Re-elected |
D33 Re-elected |
D34 Hold |
D35 Hold |
D36 Gain |
V1 R Loss |
RA2 Gain |
| Majority, with Readjusters in caucus ↓ | RA1 | ||||||||
| R29 Re-elected |
R30 Re-elected |
R31 Hold |
R32 Hold |
R33 Hold |
R34 Hold |
R35 Hold |
R36 Gain |
R37 Gain | |
| R28 Re-elected |
R27 Re-elected |
R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1884 and 1885[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 Re-elected |
D27 Re-elected |
D26 Re-elected |
D25 Re-elected |
D24 Re-elected |
D23 Re-elected |
D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Hold |
D31 Hold |
D32 Hold |
D33 Hold |
D34 Hold |
V1 D Loss |
V2 R Loss |
V3 R Loss |
RA1 |
| Majority due to three vacancies ↓ | RA2 | ||||||||
| R29 Re-elected |
R30 Re-elected |
R31 Re-elected |
R32 Re-elected |
R33 Re-elected |
R34 Hold |
R35 Hold |
R36 Hold |
R37 Gain | |
| R28 Re-elected |
R27 | R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1886 and 1887[edit]
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 Re-elected |
D27 Re-elected |
D26 Re-elected |
D25 | D24 | D23 | D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Hold |
D31 Hold |
D32 Hold |
D33 Gain |
D34 Gain |
D35 Gain |
D36 Gain |
V1 D Loss |
RA2 |
| Majority due to vacancy→ | R38 Gain | ||||||||
| R29 Re-elected |
R30 Re-elected |
R31 Re-elected |
R32 Re-elected |
R33 Hold |
R34 Hold |
R35 Hold |
R36 Hold |
R37 Hold | |
| R28 Re-elected |
R27 Re-elected |
R26 Re-elected |
R25 | R24 | R23 | R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1888 and 1889[edit]
These elections coincided with Benjamin Harrison's victory over incumbent President Grover Cleveland. Both parties were unchanged in the general elections, but later special elections would give Republicans an eight-seat majority, mostly from newly admitted states.
| D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | ||
| D9 | D10 | D11 | D12 | D13 | D14 | D15 | D16 | D17 | D18 |
| D28 Re-elected |
D27 Re-elected |
D26 Re-elected |
D25 Re-elected |
D24 | D23 | D22 | D21 | D20 | D19 |
| D29 Re-elected |
D30 Re-elected |
D31 Re-elected |
D32 Re-elected |
D33 Re-elected |
D34 Re-elected |
D35 Re-elected |
D36 Re-elected |
D37 Gain |
V1 R Loss |
| Majority due to vacancy → | R38 Gain | ||||||||
| R29 Re-elected |
R30 Re-elected |
R31 Re-elected |
R32 Re-elected |
R33 Re-elected |
R39 Re-elected |
R35 Hold |
R36 Hold |
R37 Hold | |
| R28 Re-elected |
R27 Re-elected |
R26 | R25 | R24 | R23 | R22 | R21 | R20 | R19 |
| R9 | R10 | R11 | R12 | R13 | R14 | R15 | R16 | R17 | R18 |
| R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | ||
United States Senate elections, 1890 and 1891[edit]
| D1 | D2 | ||||||||
| D12 | D11 | D10 | D9 | D8 | D7 | D6 | D5 | D4 | D3 |
| D13 | D14 | D15 | D16 | D17 | D18 | D19 | D20 | D21 | D22 |
| D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 Re-elected |
D28 Re-elected |
D27 Re-elected |
D26 Re-elected |
D25 | D24 | D23 |
| D33 Re-elected |
D34 Hold |
D35 Hold |
D36 Hold |
D37 Hold |
D38 Gain |
D39 Gain |
D40 Gain |
I1 Gain |
P1 Gain |
| Majority → | R43 New seat | ||||||||
| R33 Re-elected |
R34 Re-elected |
R35 Re-elected |
R36 Re-elected |
R37 Re-elected |
R38 Re-elected |
R39 Re-elected |
R40 Re-elected |
R41 Hold |
R42 Hold |
| R32 Re-elected |
R31 | R30 | R29 | R28 | R27 | R26 | R25 | R24 | R23 |
| R13 | R14 | R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 |
| R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 | R4 | R3 |
| R1 | R2 | ||||||||
United States Senate elections, 1892 and 1893[edit]
| D1 | D2 | D3 | D4 | ||||||
| D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 | D5 |
| D15 | D16 | D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 |
| D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 | D28 | D27 | D26 | D25 |
| D35 Re-elected |
D36 Re-elected |
D37 Re-elected |
D38 Hold |
D39 Hold |
D30 Gain |
D41 Gain |
D42 Gain |
V1 D loss |
V2 R loss |
| Majority with vacancies → | D43 Gain |
V3 R loss | |||||||
| R35 Re-elected |
R36 Re-elected |
R37 Hold |
SR1 Gain |
P1 | P2 | P3 Gain |
V4 R loss | ||
| R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
R28 | R27 | R26 | R25 |
| R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 |
| R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 |
| R1 | R2 | R3 | R4 | ||||||
United States Senate elections, 1894 and 1895[edit]
| D1 | D2 | D3 | D4 | ||||||
| D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 | D5 |
| D15 | D16 | D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 |
| D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 | D29 | D28 | D27 | D26 | D25 |
| D35 Hold |
D36 Hold |
D37 Hold |
D38 Hold |
D39 Hold |
D40 Retired |
P4 Gain |
P3 | V4 R Loss |
V1 |
| No majority | V2 | ||||||||
| R35 Hold |
R36 Hold |
R37 Gain |
R38 Gain |
R39 Gain |
SR1 | P1 | P2 | V3 | |
| R34 Hold |
R33 Hold |
R32 Hold |
R31 Hold |
R30 Hold |
R29 Re-elected |
R28 Re-elected |
R27 Re-elected |
R26 Re-elected |
R25 Re-elected |
| R15 | R16 | R17 | R18 | R19 | R20 | R21 | R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
| R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 |
| R1 | R2 | R3 | R4 | ||||||
United States Senate elections, 1896 and 1897[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 | D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 | D25 |
| P3 Re-elected |
P4 Hold |
P5 Gain |
D32 Gain |
D31 Hold |
D30 Hold |
D29 Hold |
D28 Hold |
D27 Re-elected |
D26 Re-elected |
| P2 | P1 | S2 Re-elected |
S1 | SR2 Re-elected |
SR1 Gain |
R46 Gain |
R45 Gain |
R44 Gain |
V1 D Loss |
| Majority → | V2 | ||||||||
| R36 Re-elected |
R37 Re-elected |
R38 Re-elected |
R39 Hold |
R40 Gain |
R41 Gain |
R42 Gain |
R43 Gain |
V3 R Loss | |
| R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1898 and 1899[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 | D17 | D18 | D19 | D20 Re-elected |
D21 Re-elected |
D22 Re-elected |
D23 Re-elected |
D24 Hold |
D25 Gain |
| R50 Gain |
SR3 Re-elected |
SR2 | SR1 | S1 | S2 | P1 | P2 | P3 | P4 |
| R49 Gain |
R48 Gain |
R47 Gain |
R46 Gain |
R45 Gain |
R44 Gain |
R43 Hold |
V1 D Loss |
V2 D Loss |
V3 D Loss |
| Majority → | |||||||||
| R42 Re-elected |
V6 R Loss |
V5 SR Loss |
V4 P Loss | ||||||
| R36 Re-elected |
R37 Re-elected |
R38 Re-elected |
R39 Re-elected |
R40 Re-elected |
R41 Re-elected | ||||
| R35 Re-elected |
R34 Re-elected |
R33 | R32 | R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1900 and 1901[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 Re-elected |
D17 Re-elected |
D18 Re-elected |
D19 Re-elected |
D20 Re-elected |
D21 Hold |
D22 Hold |
D23 Hold |
D24 Hold |
D25 Hold |
| SR1 | S1 | S2 | P1 | P2 | P3 | P4 | D28 Gain |
D27 Gain |
D26 Gain |
| SR2 | SR3 Gain |
R48 Gain |
R47 Re-elected |
R46 Re-elected |
R45 Re-elected |
R44 Hold |
R43 Re-elected |
V5 D Loss |
V1 |
| Majority → | V4 R Loss |
V2 | |||||||
| R36 Re-elected |
R37 Re-elected |
R38 Re-elected |
R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Hold |
V3 | ||
| R35 Re-elected |
R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1902 and 1903[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 | D17 | D18 | D19 | D20 | D21 | D22 Re-elected |
D23 Re-elected |
D24 Re-elected |
D25 Hold |
| R54 Gain |
R55 Gain |
V1 D Loss |
D32 Gain |
D31 Gain |
D30 Gain |
D29 Gain |
D28 Gain |
D27 Hold |
D26 Hold |
| R53 Gain |
R52 Gain |
R51 Hold |
R50 Hold |
R49 Re-elected |
R48 Re-elected |
R47 Re-elected |
R46 Re-elected |
R45 Re-elected |
V2 |
| Majority → | R44 Re-elected | ||||||||
| R36 | R37 | R38 Re-elected |
R29 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
V3 | |
| R35 | R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1904 and 1905[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 | D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 | D25 |
| R53 Hold |
R54 Hold |
R55 Hold |
R56 Gain |
D31 Gain |
D30 Re-elected |
D29 Re-elected |
D28 Re-elected |
D27 Re-elected |
D26 |
| R52 Hold |
R51 Hold |
R50 Hold |
R49 Hold |
R48 Re-elected |
R47 Re-elected |
R46 Re-elected |
R45 Re-elected |
R44 Re-elected |
V1 D Loss |
| Majority → | V2 D Loss | ||||||||
| R36 Re-elected |
R37 Re-elected |
R38 Re-elected |
R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
V3 R Loss | |
| R35 Re-elected |
R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1906 and 1907[edit]
| D1 | D2 | D3 | D4 | D5 | |||||
| D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 |
| D16 | D17 | D18 | D19 Re-elected |
D20 Re-elected |
D21 Re-elected |
D22 Re-elected |
D23 Re-elected |
D24 Re-elected |
D25 Re-elected |
| R56 Hold |
R57 Gain |
R58 Gain |
R59 Gain |
R60 Gain |
V1 R Loss |
V2 D Loss |
D28 Hold |
D27 Hold |
D26 Hold |
| R55 Hold |
R54 Hold |
R53 Hold |
R52 Hold |
R51 Re-elected |
R50 Re-elected |
R49 Re-elected |
R48 Re-elected |
R47 Re-elected |
R46 Re-elected |
| Majority due to vacancies→ | R45 Re-elected | ||||||||
| R36 | R37 | R38 | R39 | R40 | R41 | R42 | R43 Re-elected |
R44 Re-elected | |
| R35 | R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 | R26 |
| R16 | R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 |
| R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 | R6 |
| R1 | R2 | R3 | R4 | R5 | |||||
United States Senate elections, 1908 and 1909[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | ||||
| D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 |
| D17 | D18 | D19 | D20 Re-elected |
D21 Re-elected |
D22 Re-elected |
D23 Re-elected |
D24 Re-elected |
D25 Re-elected |
D26 Re-elected |
| R57 Hold |
R58 Hold |
R59 Gain |
V1 R loss |
V2 D loss |
D31 Gain |
D30 Gain |
D29 Hold |
D28 Hold |
D27 Hold |
| R56 Hold |
R55 Hold |
R54 Hold |
R53 Re-elected |
R52 Re-elected |
R51 Re-elected |
R50 Re-elected |
R49 Re-elected |
R48 Re-elected |
R47 Re-elected |
| Majority due to vacancies→ | R46 Re-elected | ||||||||
| R37 | R38 | R39 | R40 | R41 | R42 | R43 | R44 Re-elected |
R45 Re-elected | |
| R36 | R35 | R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 |
| R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 |
| R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 |
| R1 | R2 | R3 | R4 | R5 | R6 | ||||
United States Senate elections, 1910 and 1911[edit]
Although the 17th Amendment was not passed until 1913, some states elected their Senators directly before its passage. Oregon pioneered direct election and experimented with different measures over several years until it succeeded in 1907. Soon after, Nebraska followed suit and laid the foundation for other states to adopt measures reflecting the people's will. By 1912, as many as 29 states elected senators either as nominees of their party's primary or in conjunction with a general election.
| D1 | D2 | D3 | D4 | D5 | D6 | ||||
| D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 |
| D17 | D18 | D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 |
| D36 Gain |
D35 Gain |
D34 Gain |
D33 Gain |
D32 Hold |
D31 Hold |
D30 Re-elected |
D29 Re-elected |
D28 Re-elected |
D27 |
| D37 Gain |
D38 Gain |
D39 Gain |
D40 Gain |
V1 D Loss |
V2 R Loss |
R50 Hold |
R49 Hold |
R48 Hold |
R47 Hold |
| Majority → | R46 Hold | ||||||||
| R37 Re-elected |
R38 Re-elected |
R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected | |
| R36 Re-elected |
R35 | R34 | R33 | R32 | R31 | R30 | R29 | R28 | R27 |
| R17 | R18 | R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 |
| R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 | R8 | R7 |
| R1 | R2 | R3 | R4 | R5 | R6 | ||||
United States Senate elections, 1912 and 1913[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Hold |
D37 Hold |
D36 Hold |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 | D29 |
| D39 Hold |
D40 Hold |
D41 Gain |
D42 Gain |
D43 Gain |
D44 Gain |
D45 Gain |
D46 Gain |
V1 | V2 D Loss |
| Majority with vacancies → | D47 Gain | ||||||||
| R39 Re-elected |
R40 Hold |
R41 Hold |
R42 Hold |
R43 Hold |
R44 Gain |
R45 Gain |
V4 R Loss |
V3 R Loss | |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1914[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Hold |
| Majority → | |||||||||
| R39 Hold |
R40 Hold |
R41 Hold |
P1 | V1 | D53 Gain |
D52 Gain |
D51 Gain |
D50 Hold |
D49 Hold |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 Re-elected |
R28 Re-elected |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1916[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D38 | D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Hold | ||||||||
| R39 Gain |
R40 Gain |
R41 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain |
D51 Gain |
D50 Hold | |
| R38 Gain |
R37 Gain |
R36 Gain |
R35 Hold |
R34 Hold |
R33 Hold |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1918[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Hold |
D45 Hold |
D46 Hold |
D47 Hold |
D48 Gain |
| Majority with VP vote ↑ | |||||||||
| R39 Hold |
R40 Hold |
R41 Hold |
R42 Retired |
R43 Retired |
R44 Retired |
R45 Gain |
R46 Gain |
R47 Gain |
R48 Gain |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1920[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| R59 Gain |
D37 Hold |
D36 Hold |
D35 Hold |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 | D29 |
| R58 Gain |
R57 Gain |
R56 Gain |
R55 Gain |
R54 Gain |
R53 Gain |
R52 Gain |
R51 Gain |
R50 Gain |
R49 Hold |
| Majority → | |||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R44 Re-elected |
R46 Re-elected |
R47 Hold |
R48 Hold |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1922[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 Re-elected |
D23 Re-elected |
D24 Re-elected |
D25 Re-elected |
D26 Re-elected |
D27 Re-elected |
D28 Re-elected |
| D38 Gain |
D37 Gain |
D36 Gain |
D35 Gain |
D34 Hold |
D33 Hold |
D32 Hold |
D31 Re-elected |
D30 Re-elected |
D29 Re-elected |
| D39 Gain |
D40 Gain |
D41 Gain |
D42 Gain, same as special |
FL1 Gain |
R53 Gain |
R52 Gain |
R51 Hold |
R50 Hold |
R49 Appointee elected, same as Special |
| Majority → | |||||||||
| R39 | R40 | R41 | R42 | R43 | R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
| R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1924[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 |
| D39 Hold |
D40 Hold |
D41 Gain |
FL1 | R52 Gain |
R51 Gain |
R51 Gain |
R51 Gain |
R50 Hold |
R49 Hold |
| Majority → | |||||||||
| R39 Ran |
R40 Ran |
R41 Ran |
R42 Ran |
R43 Ran |
R44 Ran |
R45 Ran |
R46 Hold |
R47 Hold |
R48 Hold |
| R38 Ran |
R37 Ran |
R36 Ran |
R35 Ran |
R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1926[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 | D31 | D30 | D29 |
| D39 Hold |
D40 Gain |
D41 Gain |
D42 Gain |
D43 Gain |
D44 Gain |
D45 Gain |
FL1 | R50 Ran |
R49 Hold |
| Majority → | |||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Hold |
R46 Hold |
R47 Hold |
R48 Hold |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1928[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 Re-elected |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 Re-elected |
| D39 Re-elected |
D40 Hold |
FL1 Re-elected |
V1 | V2 | R53 Gain |
R52 Gain |
R51 Gain |
R50 Gain |
R49 Gain |
| Majority → | R48 Gain | ||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Elected |
R46 Elected |
R47 Hold | |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 | R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1930[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 Re-elected |
D28 Re-elected |
| D38 Hold |
D37 Hold |
D36 Hold |
D35 Hold |
D34 Hold |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 Re-elected |
| D39 Gain |
D40 Gain |
D41 Gain |
D42 Gain |
D43 Gain |
D44 Gain |
D45 Gain |
FL1 | R50 Gain |
R49 Hold |
| Majority → | |||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Hold |
R48 Hold |
| R38 Re-elected |
R37 | R36 | R35 | R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1932[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Hold |
D46 Hold |
D47 Hold |
D48 Gain |
| Majority → | D49 Gain | ||||||||
| D58 Gain |
D57 Gain |
D56 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain |
D51 Gain |
D50 Gain | |
| D59 Gain |
FL1 | R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1934[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 | D40 | D41 | D42 | D43 | D44 | D45 | D45 | D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Re-elected | ||||||||
| D58 Hold |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected |
D51 Re-elected |
D50 Re-elected | |
| D59 Hold |
D60 Hold |
D61 Gain |
D62 Gain |
D63 Gain |
D64 Gain |
D65 Gain |
D66 Gain |
D67 Gain |
D68 Gain |
| R19 Re-elected |
R20 Re-elected |
R21 Re-elected |
R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
R25 Re-elected |
P1 Re-elected new party |
FL1 Re-elected |
D69 Gain |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1936[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 | D40 | D41 | D42 | D43 | D44 | D45 | D45 | D46 | D47 |
| Majority → | D49 | ||||||||
| D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected |
D51 Re-elected |
D50 | |
| D59 Re-elected |
D60 Re-elected |
D61 Re-elected |
D62 Re-elected |
D63 Re-elected |
D64 Re-elected |
D65 Re-elected |
D66 Hold |
D67 Hold |
D68 Hold |
| FL1 | FL2 Hold |
P1 | V1 | D74 Gain |
D73 Gain |
D72 Gain |
D71 Gain |
D70 Gain |
D69 Gain |
| I1 Re-elected new party |
R17 Gain |
R16 Hold |
R15 Re-elected |
R14 Re-elected |
R13 Re-elected |
R12 Re-elected |
R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1938[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 | D40 | D41 | D42 | D43 | D44 | D45 | D46 | D47 | D48 |
| Majority → | D49 Re-elected | ||||||||
| D58 Re-elected |
D57 Hold |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Hold |
D51 Re-elected |
D50 Re-elected | |
| D59 Re-elected |
D60 Re-elected |
D61 Re-elected |
D62 Re-elected |
D63 Re-elected |
D64 Re-elected |
D65 Re-elected |
D66 Re-elected |
D67 Re-elected |
D68 Hold |
| R19 Gain |
R20 Gain |
R21 Gain |
R22 Gain |
P1 | FL1 | FL2 | I1 | D70 Re-elected |
D69 Re-elected |
| R18 Gain |
R17 Gain |
R16 Gain |
R15 Re-elected |
R14 Re-elected |
R13 Re-elected |
R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1940[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 | D40 | D41 | D42 | D43 | D44 | D45 | D46 | D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Re-elected | ||||||||
| D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected |
D51 Re-elected |
D50 Re-elected | |
| D59 Re-elected |
D60 Re-elected |
D61 Re-elected |
D62 Re-elected |
D63 Hold |
D64 Hold |
D65 Hold |
D66 Hold |
D67 Gain |
I1 |
| R19 Re-elected |
R20 Re-elected |
R21 Re-elected |
R22 Hold |
R23 Hold |
R24 Gain |
R25 Gain |
R26 Gain |
R27 Gain |
P1 Re-elected |
| R18 Re-elected |
R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1942[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 | D40 | D41 | D42 | D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Re-elected | ||||||||
| P1 | D57 Hold |
D56 Hold |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected |
D51 Re-elected |
D50 Re-elected | |
| R38 Gain |
R37 Gain |
R36 Gain |
R35 Gain |
R34 Gain |
R33 Gain |
R32 Gain |
R31 Gain |
R30 Gain |
R29 Re-elected |
| R19 | R20 | R21 Re-elected |
R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
R25 Re-elected |
R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1944[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Re-elected | ||||||||
| D58 Gain |
D57 Gain |
D56 Gain |
D55 Hold |
D54 Hold |
D53 Hold |
D52 Hold |
D51 Hold |
D50 Re-elected | |
| P1 | R37 Gain |
R36 Gain |
R35 Gain |
R34 Hold |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 Re-elected |
R28 Re-elected |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1946[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Hold |
D45 Hold |
D46 Hold |
R50 Gain |
R49 Gain |
| Majority → | R48 Gain | ||||||||
| R39 Hold |
R40 Gain |
R41 Gain |
R42 Gain |
R43 Gain |
R44 Gain |
R45 Gain |
R46 Gain |
R47 Gain | |
| R38 Hold |
R37 Hold |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1948[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Hold |
D43 Hold |
D44 Hold |
D45 Hold |
D46 Gain |
D47 Gain |
D48 Gain |
| Majority → | D49 Gain | ||||||||
| R39 Hold |
R40 Hold |
R41 Hold |
R42 Hold |
D54 Gain |
D53 Gain |
D52 Gain |
D51 Gain |
D50 Gain | |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1950[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Hold |
D47 Hold |
D48 Hold |
| Majority → | D49 Gain | ||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Hold |
R42 Hold |
R43 Gain |
R44 Gain |
R45 Gain |
R46 Gain |
R47 Gain | |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1952[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D38 Re-elected |
D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D47 Hold |
D48 Hold |
D45 Gain |
D46 Gain |
D47 Gain |
D48 Gain |
| Majority using VP's vote ↓ | |||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Hold |
R44 Gain |
R45 Gain |
R46 Gain |
R47 Gain |
R48 Gain |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1954[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 Re-elected |
D28 Re-elected |
| D38 Re-elected |
D37 Hold |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
D30 Re-elected |
D29 Re-elected |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Hold |
D45 Gain |
D46 Gain |
D47 Gain |
D48 Gain |
| Plurality ↑ | |||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Hold |
R45 Hold |
R46 Gain |
R47 Gain |
I1 |
| R38 Re-elected |
R37 | R36 | R35 | R34 | R33 | R32 | R31 | R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1956[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Hold |
D48 Gain |
| Majority → | D49 Gain | ||||||||
| R39 Re-elected |
R40 Re-elected |
R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Gain |
R45 Gain |
D51 Gain |
D50 Gain | |
| R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
R30 | R29 |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1958[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | ||
| D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 | D10 | D9 |
| D19 | D20 | D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 |
| D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 | D30 | D29 |
| D39 Re-elected |
D40 Re-elected |
D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
| Majority → | D49 Re-elected | ||||||||
| D58 Gain |
D57 Gain |
D56 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain |
D51 Gain |
D50 Gain | |
| D59 Gain |
D60 Gain |
D61 Gain |
R35 Hold |
R34 Hold |
R33 Hold |
R32 Re-elected |
R31 Re-elected |
R30 Re-elected |
R29 Re-elected |
| R19 | R20 | R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 Re-elected |
| R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 | R10 | R9 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | ||
United States Senate elections, 1960[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 | D43 | D44 | D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Re-elected |
D59 Re-elected |
D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected | |
| D61 Re-elected |
D62 Re-elected |
D63 Hold |
D64 Hold |
R36 Gain |
R35 Gain |
R34 Hold |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 Re-elected |
R25 Re-elected |
R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1962[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 | D43 | D44 | D45 | D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Re-elected |
D59 Re-elected |
D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected | |
| D61 Re-elected |
D62 Re-elected |
D63 Hold |
D64 Gain |
D65 Gain |
D66 Gain |
D67 Gain |
D68 Gain |
R32 Gain |
R31 Re-elected |
| R21 | R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
R25 Re-elected |
R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1964[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 | D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Re-elected |
D59 Re-elected |
D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected | |
| D61 Re-elected |
D62 Re-elected |
D63 Re-elected |
D64 Re-elected |
D65 Re-elected |
D66 Gain |
D67 Gain |
D68 Gain |
R32 Gain |
R31 Hold |
| R21 | R22 | R23 | R24 | R25 | R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1966[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 | D43 | D44 | D45 | D46 | D47 | D48 | D49 | D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Re-elected |
D59 Re-elected |
D58 Re-elected |
D57 Re-elected |
D56 Re-elected |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected | |
| D61 Re-elected |
D62 Re-elected |
D63 Re-elected |
D64 Hold |
R36 Gain |
R35 Gain |
R34 Gain |
R33 Hold |
R32 Hold |
R31 Re-elected |
| R21 Re-elected |
R22 Re-elected |
R23 Re-elected |
R24 Re-elected |
R25 Re-elected |
R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 Re-elected |
R19 Re-elected |
R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1968[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| R41 Gain |
R42 Gain |
D58 Gain |
D57 Gain |
D56 Hold |
D55 Hold |
D54 Hold |
D53 Re-elected |
D52 Re-elected | |
| R40 Gain |
R39 Gain |
R38 Gain |
R37 Gain |
R36 Gain |
R35 Hold |
R34 Hold |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1970[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Hold |
| Majority → | D51 Hold | ||||||||
| R41 Hold |
R42 Gain |
R43 Gain |
R44 Gain |
R45 Gain |
C1 Gain |
I1 Re-elected new party |
D53 Gain |
D52 Hold | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1972[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Hold |
D50 Hold |
| Majority → | D51 Gain | ||||||||
| R41 Gain |
R42 Gain |
C1 | I1 | D56 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain | |
| R40 Gain |
R39 Gain |
R38 Hold |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1974[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Gain |
D59 Gain |
D58 Gain |
D57 Hold |
D56 Hold |
D55 Hold |
D54 Hold |
D53 Re-elected |
D52 Re-elected | |
| I1 | C1 | R38 Gain |
R37 Hold |
R36 Hold |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1976[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| D60 Gain |
D59 Gain |
D58 Gain |
D57 Gain |
D56 Gain |
D55 Gain |
D54 Hold |
D53 Hold |
D52 Re-elected | |
| D61 Gain |
I1 Re-elected |
R38 Gain |
R37 Gain |
R36 Gain |
R35 Gain |
R34 Gain |
R33 Gain |
R32 Gain |
R31 Hold |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1978[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 | D43 | D44 | D45 | D46 Ran |
D47 Ran |
D48 Ran |
D49 Ran |
D50 Ran |
| Majority → | D51 Ran | ||||||||
| I1 | D59 Gain |
D58 Gain |
D57 Gain |
D56 Gain |
D55 Gain |
D54 Hold |
D53 Hold |
D52 Hold | |
| R40 Gain |
R39 Gain |
R38 Gain |
R37 Gain |
R36 Gain |
R35 Gain |
R34 Gain |
R33 Hold |
R32 Hold |
R31 Hold |
| R21 | R22 Ran |
R23 Ran |
R24 Ran |
R25 Ran |
R26 Ran |
R27 Ran |
R28 Ran |
R29 Ran |
R30 Ran |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1980[edit]
The November 4, 1980 elections coincided with Ronald Reagan's victory in the presidential election. Reagan's large margin of victory over incumbent Jimmy Carter pulled in many Democratic voters and gave a huge boost to Republican Senate candidates.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Hold |
D46 Hold |
I1 | R53 Gain |
R52 Gain |
R51 Gain |
| Majority → | |||||||||
| R41 Hold |
R42 Gain |
R43 Gain |
R44 Gain |
R45 Gain |
R46 Gain |
R47 Gain |
R48 Gain |
R49 Gain |
R50 Gain |
| R40 Hold |
R39 Hold |
R38 Hold |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1982[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Gain |
D46 Gain |
R54 Gain |
R53 Gain |
R52 Hold |
R51 Re-elected |
| Majority → | |||||||||
| R41 | R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Re-elected |
R50 Re-elected |
| R40 | R39 | R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1984[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Hold |
D45 Hold |
D46 Gain |
D47 Gain |
R53 Gain |
R52 Hold |
R51 Re-elected |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Re-elected |
R50 Re-elected |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1986[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Hold |
D46 Hold |
D47 Gain |
D48 Gain |
D49 Gain |
D50 Gain |
| Majority → | D51 Gain | ||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Hold |
R45 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1988[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Gain |
R44 Gain |
R45 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1990[edit]
The elections were held November 6, 1990. Democrats increased their majority with a net gain of one seat from Republicans. The election took place in the middle of President George H. W. Bush's term, and, as with most other midterm elections, the party not holding the presidency gained seats in Congress. Only one seat changed parties in this election. Democrats would later gain a 57th seat after a Democrat was appointed to replace a Republican who had died.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| Majority → | D51 Re-elected | ||||||||
| R41 Re-elected |
R42 Hold |
R43 Hold |
R44 Hold |
D56 Gain |
D55 Re-elected |
D54 Re-elected |
D53 Re-elected |
D52 Re-elected | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1992[edit]
The elections were held November 3, 1992 and coincided with Bill Clinton's victory the presidential election. Despite the presidential victory, Democrats had a net loss of a seat in the general elections, and only managed to break even by winning a seat in a special election.
Democratic victories over Republicans John F. Seymour (of California) and Bob Kasten (of Wisconsin) were cancelled out by the defeats of Democrats Wyche Fowler (of Georgia) and Terry Sanford (of North Carolina). The election of four new Democratic women to the Senate was notable (referred to in the press as the "Year of the Woman"). Due to a special election in California, both of California's Senate seats were up for election in 1992. These seats were won by Dianne Feinstein and Barbara Boxer. As a consequence, California became the first state to have elected women to occupy both of its Senate seats.
Democrat Carol Moseley Braun (of Illinois), became the first African-American woman in the United States Senate.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Hold |
D50 Hold |
| Majority → | D51 Hold | ||||||||
| R41 Hold |
R42 Hold |
R43 Gain |
R43 Gain |
D56 Gain |
D55 Retired |
D54 Retired |
D53 Hold |
D52 Hold | |
| R40 Hold |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1994[edit]
The elections were held November 8, 1994. Republicans were able to take control of the Senate from the Democrats. In a midterm election, the opposition Republicans held the traditional advantage. Congressional Republicans campaigned against the early presidency of Bill Clinton, including his unsuccessful health care plan.[citation needed]
The Republicans successfully defended all of its seats and captured eight seats from the Democrats, including the seats of sitting Senators in Pennsylvania and Tennessee, as well as six open seats in Arizona, Maine, Michigan, Ohio, Oklahoma, and Tennessee. Notably, Tennessee's Senate delegation switched from entirely Democratic to entirely Republican in a single election. This election marked the first time Republicans controlled the Senate since January 1987, and coincided with the first change of control in the House of Representatives since January 1955 and a Republican net gain of ten governorships. Collectively, these Republican gains are known as the "Republican Revolution." This was also the first time since 1980 that Republicans made net gains in the Senate, but the last time the Republicans also made gains among class 1 senators.
Initially, the balance was 52–48 in favor of the Republicans, but after the power change, two Democrats switched parties, bringing the balance to 54–46.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Ran |
D39 Ran |
D38 Ran |
D37 Ran |
D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Re-elected |
| No Majority | |||||||||
| R41 Re-elected |
R42 Hold |
R43 Hold |
R44 Hold |
R45 Gain |
R46 Gain |
R47 Gain |
R48 Gain |
R49 Gain |
R50 Gain |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1996[edit]
The election was held November 5, 1996 and coincided with Democrat Bill Clinton's presidential re-election. Despite Clinton's re-election and his party picking up a net two seats in the House elections held the same day, the Republicans had a net gain of two seats in the Senate, following major Republican gains two years previously in the 1994 elections. As such, Clinton became the first president re-elected since Theodore Roosevelt in 1904 to win either of his terms without any Senate coattails. The Republicans captured open seats in Alabama, Arkansas, and Nebraska. In South Dakota, Democrat Tim Johnson narrowly defeated incumbent Republican Larry Pressler. The 1996 election marked the first time since 1980 that the Republican party made gains in the Senate for two consecutive election cycles.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Hold |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 | D31 |
| D41 Hold |
D42 Hold |
D43 Hold |
D44 Hold |
D45 Gain |
R55 Gain |
R54 Gain |
R53 Hold |
R52 Hold |
R51 Hold |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Re-elected |
R50 Hold |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 1998[edit]
The November 3, 1998 elections were a roughly even contest between Republicans and Democrats. While the Democrats had to defend more seats up for election, Republican attacks on the morality of President Bill Clinton failed to connect with voters and anticipated Republican gains did not materialize. The Republicans picked up open seats in Ohio and Kentucky and narrowly defeated an incumbent senator in Illinois, but these were offset by the Democrats' gain of an open seat in Indiana and defeats of senators in New York and North Carolina. The balance of the Senate remained unchanged at 55–45 in favor of the Republicans. With Democrats gaining five seats in the House of Representatives, this marked the first time since 1934 that the out-of-Presidency party failed to gain congressional seats in a mid-term election, and the first time since 1822 that the party not in control of the White House failed to gain seats in the mid-term election of a President's second term. These are the last senate elections that resulted in no net change in the balance of power.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 Re-elected |
D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
| D41 Re-elected |
D42 Re-elected |
D43 Gain |
D44 Gain |
D45 Gain |
R55 Gain |
R54 Gain |
R53 Gain |
R52 Re-elected |
R51 Re-elected |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Re-elected |
R50 Re-elected |
| R40 | R39 | R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2000[edit]
The November 7, 2000 elections coincided with the presidential election of Republican George W. Bush. It featured a number of fiercely contested elections that resulted in a victory for the Democrats, who gained a net total of four seats from Republicans. This election marked the first election year since 1988 where Democrats made net gains in the Senate.
These elections took place six years after Republicans had won a net gain of eight seats in Senate Class 1 during the elections of 1994. Democrats defeated Republican senators in Delaware, Michigan, Minnesota, Missouri, and Washington, as well as winning an open seat in Florida. In Missouri, the winner was elected posthumously. The Republicans did defeat one incumbent in Virginia and won an open seat in Nevada.
These elections resulted in an equal 50–50 split between Republicans and Democrats, meaning the Vice President would cast the tie-breaking votes in organizing the Senate. This resulted in the Democrats winning control of the Senate for only 17 days, since Al Gore was still Vice President and President of the Senate at the beginning of the new term, on January 3, 2001. But the Republicans regained control of the chamber when the new Vice President Dick Cheney was inaugurated January 20. The Republican majority would last until June 6, 2001 when a Republican Senator became an Independent and caucused with the Democrats.
These are the last elections with only Republicans and Democrats in the Senate. Starting with that Independent's party switch, there would always be at least one third-party senator.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 | D31 |
| D41 Re-elected |
D42 Hold |
D43 Hold |
D44 Hold |
D45 Gain |
D46 Gain |
D47 Gain |
D48 Gain |
D49 Gain |
D50 Gain |
| Majority with Democratic Vice President→ | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Gain |
R50 Gain |
| R40 | R39 | R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2002[edit]
The November 5, 2002 elections were fiercely contested and resulted in a victory for the Republicans, who gained two seats and thus a narrow majority.
The Democrats had originally hoped to do well, as the party holding the presidency historically loses seats in midterm elections, and the Republicans had 20 seats up for election compared to 14 Democratic seats. In addition, four incumbent Republicans and no Democrats announced their retirement before the election. However, the Republicans were able to hold the four open seats, all of which were in the South. Ultimately, Republicans would pick up three seats and lose one, resulting in a net gain of two seats. Together with gains made in the House of Representatives, this election was one of the few mid-term elections in the last one hundred years in which the party in control of the White House gained Congressional seats (the others were 1902, 1934, and 1998). This was the first time since 1962 in which a first-term president's party made net gains in the Senate.
This was the most recent Senate election cycle in which at least one incumbent senator from each party lost in the general election. This was also the second consecutive mid-term election held in a president's first term in which the Republican party both had a net gain of seats and regained control of the United States Senate from the Democratic Party. This was the only election cycle ever where the party of the incumbent President gained new control of a house of Congress in a midterm election.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Hold |
D49 Gain |
I1 |
| Majority with Republican Vice President→ | R50 Gain | ||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Hold |
R45 Hold |
R46 Hold |
R47 Hold |
R48 Hold |
R49 Gain | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2004[edit]
The November 2, 2004 coincided with the presidential re-election of George W. Bush and the United States House election. This was the third consecutive election for Senate Class 3 where the Democrats failed to end up with a net gain. This also marked the first time since 1980 in which a presidential candidate from either party won with coattails in the Senate.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 Re-elected |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
| D41 Re-elected |
D42 Re-elected |
D43 Gain |
D44 Gain |
I1 | R55 Gain |
R54 Gain |
R53 Gain |
R52 Gain |
R51 Gain |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Hold |
R50 Gain |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2006[edit]
The November 7, 2006 elections were part of the Democratic sweep of the 2006 elections, in which Democrats made numerous gains and no Congressional or gubernatorial seat held by a Democrat was won by a Republican.[2] Six Republican incumbents were defeated by Democrats. An incumbent lost his Democratic primary, but created his own party and won re-election. Democrats kept their two open seats and Republicans held onto their lone open seat. An Independent was elected to replace an Independent.Two new women were elected to seats previously held by men. This brought the total number of female senators to an all-time high of 16. Following the elections, no party held a majority of seats for the first time since January 1955. The Democrats were able to control the chamber because the two Independents caucused with the Democrats. The Democrats needed at least 51 seats to control the Senate because Vice President Dick Cheney would have broken any 50–50 tie in favor of the Republicans.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 Re-elected |
D29 Re-elected |
D30 Re-elected |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
| D41 Re-elected |
D42 Hold |
D43 Hold |
D44 Gain |
D45 Gain |
D46 Gain |
D47 Gain |
D48 Gain |
D49 Gain |
I2 Re-elected New party |
| Majority (with Independents) ↑ | I1 Hold | ||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Hold | |
| R40 | R39 | R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2008[edit]
Going into the November 4, 2008 elections, the Senate had 49 Democrats, 49 Republicans, and 2 Independents who caucused with the Democrats, giving the Democratic caucus the slightest 51-49 majority.[3] Of the seats up for election in 2008, 23 were held by Republicans and 12 by Democrats. The Republicans, who openly conceded early on that they wouldn't be able to regain the majority,[4][5] lost eight seats. This election was the second cycle in a row in which no seats switched from Democratic to Republican. In addition, this was the largest Democratic Senate gain since 1986, when they also won eight seats. Finally, these elections marked the first time since 1964 in which a Democratic presidential candidate won the White House with Senate coattails.
When the new senators were first sworn in, the balance was 58–41 in favor of the Democrats, because of the unresolved Senate election in Minnesota. The April 2009 defection of a Republican to the Democratic party and the July 2009 resolution of the Minnesota election in favor of the Democrat increased the Democratic majority to 60–40. Republicans gained a seat in a January 2010 special election in Massachusetts, making the balance 59-41 before the start of the next election cycle.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Gain |
| Majority → | D51 Gain | ||||||||
| R41 Hold |
I2 | I1 | D57 Gain |
D56 Gain |
D55 Gain |
D54 Gain |
D53 Gain |
D52 Gain | |
| R40 Hold |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2010[edit]
The November 2, 2010 elections featured 19 incumbent Democrats (7 of whom retired or were defeated in the primary) and 18 incumbent Republicans (eight of whom retired or were defeated in the primary). Republicans won four seats held by retiring Democrats and Republicans defeated two incumbent Democrats, for a Republican net gain of six seats. This was the largest number of Republican net gains since the 1994 elections and also the first time since that election that Republicans successfully defended all of their own seats. This was the fourth consecutive election of "Class 3" senators where Democrats failed to gain seats and the third consecutive mid-term election held in a president's first term where Republicans picked up seats. Despite Republican gains, the Democrats retained a majority of the Senate with 51 seats plus 2 independents who caucused with them, compared to the 47 Republican seats.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 | D39 | D38 | D37 | D36 | D35 | D34 | D33 | D32 | D31 |
| D41 | D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Re-elected |
D47 Re-elected |
D48 Re-elected |
D49 Re-elected |
D50 Hold |
| Majority → | D51 Ran | ||||||||
| R41 Hold |
R42 Gain |
R43 Gain |
R44 Gain |
R45 Gain |
R46 Gain |
R47 Gain |
I2 | I1 | |
| R40 Hold |
R39 Hold |
R38 Hold |
R37 Hold |
R36 Hold |
R35 Hold |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 Re-elected |
R24 Re-elected |
R25 Re-elected |
R26 Re-elected |
R27 Re-elected |
R28 Re-elected |
R29 Re-elected |
R30 Re-elected |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2012[edit]
In the November 6, 2012 elections, Democrats had 21 seats up for election, plus 1 Independent and 1 Independent Democrat (who both caucused with the Democrats), while the Republicans had only 10 seats up for election. The Democrats gained a net of 2 seats including a gain from the Independent Democrat, leaving them with a total of 53 seats. The Republicans lost a net of 2 seats, ending with a total of 45 seats. The Independent retained a lone seat and gained a seat from the Republicans, bringing their total to 2 seats. The Independents would caucus with the Democrats, so that majority caucus had a combined total of 55 seats. This was the third consecutive election of "Class 1" senators where Democrats gained seats. This was the third consecutive Senate election held in a presidential election year where the party belonging to the winning presidential candidate gained seats. This was the first time since 1936 where a Democratic presidential candidate who won a second term also had Senate coattails in both occasions (although Franklin Roosevelt won a third and fourth term in 1940 and 1944 respectively, he lost Senate seats on both occasions). This was the first time since 1964 in which either party had to defend more than two-thirds of the Senate seats up for grabs, but managed to make net gains.[6][7]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 Re-elected |
D31 Re-elected |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Re-elected |
D45 Re-elected |
D46 Hold |
D47 Hold |
D48 Hold |
D49 Hold |
D50 Hold |
| Majority → | D51 Gain | ||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Hold |
R44 Hold |
R45 Gain |
I2 Gain |
I1 Re-elected |
D53 Gain |
D52 Gain | |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2014[edit]
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 Re-elected |
D33 Re-elected |
D32 | D31 |
| D41 Re-elected |
D42 Re-elected |
D43 Re-elected |
D44 Hold |
I1 | I2 | R54 Gain |
R53 Gain |
R52 Gain |
R51 Gain |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Hold |
R44 Hold |
R45 Hold |
R46 Gain |
R47 Gain |
R48 Gain |
R49 Gain |
R50 Gain |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2016[edit]
The November 8, 2016 elections were held with the presidential election of Donald Trump. 34 seats were contested. Republicans held the Senate majority with 54 seats before this election. Democrats won a net gain of two seats. Only two incumbents lost their seats and 2016 marked the first time since 1986 that Democrats made a net gain of seats in class 3. This is the first and only election since the passage of the Seventeenth Amendment in 1913 where the winning party in every Senate election mirrored the winning party for their state in the presidential election.[8][9] This election marks the first time since 2000 in which the party in opposition to the elected or re-elected presidential candidate made net gains in the Senate, with both cases being a Republican president and Democratic gains in the Senate. Also in both cases, the president won in the electoral college but lost the popular vote.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 | D25 | D26 | D27 | D28 | D29 | D30 |
| D40 Re-elected |
D39 Re-elected |
D38 Re-elected |
D37 Re-elected |
D36 Re-elected |
D35 Re-elected |
D34 | D33 | D32 | D31 |
| D41 Re-elected |
D42 Hold |
D43 Hold |
D44 Hold |
D45 Gain |
D46 Gain |
I1 | I2 | R52 Hold |
R51 Hold |
| Majority → | |||||||||
| R41 Re-elected |
R42 Re-elected |
R43 Re-elected |
R44 Re-elected |
R45 Re-elected |
R46 Re-elected |
R47 Re-elected |
R48 Re-elected |
R49 Re-elected |
R50 Re-elected |
| R40 Re-elected |
R39 Re-elected |
R38 Re-elected |
R37 Re-elected |
R36 Re-elected |
R35 Re-elected |
R34 Re-elected |
R33 Re-elected |
R32 Re-elected |
R31 Re-elected |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2018[edit]
Elections will be held on November 6, 2018. Democrats have 24 seats up for election along with 2 independents who caucus with them. Republicans have 8 seats up for election, 3 of which are due to retirement.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| D20 | D19 | D18 | D17 | D16 | D15 | D14 | D13 | D12 | D11 |
| D21 | D22 | D23 | D24 Running |
D25 Running |
D26 Running |
D27 Running |
D28 Running |
D29 Running |
D30 Running |
| D40 Running |
D39 Running |
D38 Running |
D37 Running |
D36 Running |
D35 Running |
D34 Running |
D33 Running |
D32 Running |
D31 Running |
| D41 Running |
D42 Running |
D43 Running |
D44 Running |
D45 Running |
D46 Running |
D47 Running |
I1 Running |
I2 Running |
R51 Retiring |
|---|---|---|---|---|---|---|---|---|---|
| Majority → | |||||||||
| R41 | R42 | R43 | R44 Running |
R45 Running |
R46 Running |
R47 Running |
R48 Running |
R49 Retiring |
R50 Retiring |
| R40 | R39 | R38 | R37 | R36 | R35 | R34 | R33 | R32 | R31 |
| R21 | R22 | R23 | R24 | R25 | R26 | R27 | R28 | R29 | R30 |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2020[edit]
To be determined November 3, 2020 with the 33 Class 2 seats being contested.
| D1 | D2 | D3 | D4 | D5 | D6 | D7 | D8 | D9 | D10 |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | D12 | D11 |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| Majority → | |||||||||
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| R21 | R22 | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| R20 | R19 | R18 | R17 | R16 | R15 | R14 | R13 | R12 | R11 |
| R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 |
United States Senate elections, 2022[edit]
To be determined.
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| Majority → | |||||||||
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
| TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD | TBD |
See also[edit]
References[edit]
- ^ a b c Martis, Kenneth C. The Historical Atlas of Political Parties in the United States Congress.
- ^ Don Rose (December 26, 2006). "Democratic sweep may be long-lasting". Chicago Tribune. Retrieved April 9, 2014.
- ^ Sherman, Emily (October 8, 2008). "'Perfect storm' could give Dems 'magic 60' in Senate". CNN. Retrieved November 19, 2008.
- ^ Newton-Small, Jay (October 15, 2007). "The Republicans' Big Senate Fear". TIME.
- ^ Hook, Janet (July 6, 2008). "Senate outlook bad for GOP". Los Angeles Times.
- ^ Weisman, Jonathan (November 6, 2012). "Democrats Keep Control of the Senate". The New York Times.
- ^ Bendavid, Naftali (November 6, 2012). "Democrats Retain Control of U.S. Senate". The Wall Street Journal.
- ^ "WaunaKeegan Results". WaunaKeegan. Retrieved January 13, 2017.
- ^ Enten, Harry (November 10, 2016). "There Were No Purple* States On Tuesday". FiveThirtyEight.