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List of United States Senate election results by region

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Main article: List of United States Senate election results by state

The following table shows regularly-scheduled United States Senate elections by region. The table does not include appointments or special elections.

Legend

[edit]
Label Party Label Party Label Party Label Party Label Party
PA Pro-Administration Faction AJ Anti-Jacksonian FS Free Soil Party SR Silver Republican Party — No regularly-scheduled election
AA Anti-Administration Faction D Democratic Party A American Party FL Farmer-Labor Party I Independent
F Federalist Party R Republican Party Po Populist Party Sp Split result[1]
DR Democratic-Republican Party Nu Nullifier Party U Unionists[2]
J Jacksonites W Whig Party Ra Readjuster Party

Northeast

[edit]
First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[3]
State 1789 1789 1790 1792 1794 1796 1798 1800 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Connecticut PA PA PA — F F — F F — F F — F F — DR DR — AJ AJ Connecticut — AJ AJ — D W — D W — W D — R Connecticut R — R R — R R — LR D — R R — R R — R R — Connecticut R R — R R — R R — R R — R R — R R — Connecticut D D — R D — D R — D R — R D — D D — Connecticut D R — D R — D R — D D — D D — D D — D I — D D — D D — Connecticut
Maine Part of Massachusetts Part of Massachusetts 2DR DR — J Maine AJ — D D — D W — D D — D W — Maine D R — R R — R R — R R — R R — R R — R R Maine — R R — R R — D R — R R — R R — R R Maine — R R — R R — R R — R R — D R — D R Maine — D D — D R — D R — D R — R R — R R — R R — I R — I R Maine
Massachusetts PA PA PA PA — F F — F F — F DR — F F — F F — AJ Massachusetts AJ — AJ W — W W — W W — FS W — Massachusetts R R — R R — R R — R R — R R — R R — R R Massachusetts — R R — R R — R R — R D — R R — D D Massachusetts — D R — D R — R R — D R — D R — D R Massachusetts — D R — D D — D D — D D — D D — D D — D D — D D — D D Massachusetts
New Hampshire AA AA — PA DR — F F — DR DR — DR F — DR DR — DR J — New Hampshire AJ D — D D — D D — FS D — D R New Hampshire — R R — R R — R R — R R — R R — R R — R New Hampshire R — R R — R R — D R — R R — R R — R New Hampshire D — R R — R R — R R — R R — R R — D New Hampshire R — D D — R R — R R — R R — R R — R R — D R — D D — D New Hampshire
New Jersey PA PA F F — F F — DR DR — DR DR — DR DR — DR DR — AJ New Jersey AJ — AJ D — W W — W W — D D — New Jersey D R — D D — D R — D D — R D — D D — D R New Jersey — R R — R R — D D — R R — D R — R R New Jersey — D D — R R — R R — R R — D R — D R New Jersey — D R — D D — D D — D D — D D — D D — D D — D D — D D New Jersey
New York PA PA AA — F F — DR DR — DR DR — F DR — F DR — AJ J New York — D D — D D — D W — W W — R New York R — R R — R R — R D — R R — R R — D D — New York R R — R R — R D — R R — R D — D D — New York D D — D D — D R — D R — R R — R D — New York R C — R D — R D — R D — R D — D D — D D — D D — D D — New York
Pennsylvania AA PA AA — F F — DR DR — DR DR — DR DR — DR DR — AJ J Pennsylvania — D D — D D — D D — W D — D Pennsylvania R — R D — R R — R D — R R — R R — R R — Pennsylvania R R — R R — R R — R R — R R — R R — Pennsylvania R D — R D — D R — R R — D R — D R — Pennsylvania R R — R R — R R — R R — R R — R R — R D — R D — R D — Pennsylvania
Rhode Island PA AA PA PA — F F — DR DR — F DR — F F — DR DR — AJ Rhode Island AJ — AJ W — W W — W W — D D — Rhode Island R R — R R — R R — R R — R R — R R — R R Rhode Island — R R — R R — R R — D R — D R — R R Rhode Island — D D — D D — D D — D D — D D — D D Rhode Island — D D — R D — R D — R D — R D — R D — D D — D D — D D Rhode Island
Vermont 2AA — F F — F DR — DR DR — DR F — DR DR — AJ AJ Vermont — AJ AJ — W W — W W — W W — W Vermont R — R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — R R — R R — R R — R R — R R — Vermont R R — D R — D R — D R — D R — D R — D I — D I — D I — Vermont
State 1st 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

South

[edit]
First Party System Second Party System Third Party System Civil War and Reconstruction Third Party System Fourth Party System Fifth Party System Sixth Party System[3]
State 1789 1789 1790 1792 1794 1796 1798 1800 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Alabama 2DR — DR J — Alabama D D — D D — D D — D D — D D Alabama — D — — — — 2R D R — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D D — D D — D D — D D — D Alabama D — D D — D R — D D — D D — R R — R R — R R — R R — R Alabama
Arkansas Arkansas 2D — D D — D D — D D Arkansas — D D — — — 2R R R — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — D D — D Arkansas D — D D — D D — D D — D D — R D — D D — D R — R R — R Arkansas
Delaware PA AA PA PA — F F — F F — F F — F F — F F — J Delaware AJ — AJ W — W W — W W — D W — Delaware D D — D D — D D — D D — D D — D R — D D Delaware — R R — R R — R D — D R — D R — R R Delaware — R D — D R — R D — R D — R R — R R Delaware — R D — R D — R D — R D — R D — D D — D D — D D — D D Delaware
Florida Florida 2D — W D — D Florida D — — — — — 2R — R D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida D D — D D — D D — D D — D D — D D — Florida R D — D D — R D — D R — D R — D D — R D — R D — R R — Florida
Georgia AA AA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — Georgia D D — D D — W D — W W — D D Georgia — D — — — R — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D D — D D — D D — D D — D Georgia D — D D — D R — D D — D R — D R — R R — R R — R R — Georgia
Kentucky Part of Virginia 2AA F — DR DR — DR DR — DR DR — DR DR — DR J — Kentucky D AJ — W W — W W — W W — W W Kentucky — D D — D D — D D — D D — D D — D D — D Kentucky R — D D — D R — D D — D R — R D — D Kentucky D — D D — D D — D D — D R — R R — R Kentucky R — D D — D D — R D — R D — R R — R R — R R — R R — R Kentucky
Louisiana 2DR — DR DR — DR AJ — Louisiana D D — D D — W W — D D — W D Louisiana — D — — — — 2R R D — R D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D Louisiana D — D D — D D — D D — D D — D D — D R — D R — R R — R Louisiana
Maryland PA PA PA — F F — DR DR — DR DR — F F — DR DR — J J Maryland — AJ AJ — W W — W W — W W — W Maryland A — D U — D D — D D — D D — D D — D D — Maryland R R — D D — D D — D R — R D — D R — Maryland D D — D D — D D — R R — R R — D D — Maryland R R — R D — R D — D D — D D — D D — D D — D D — D D — Maryland
Mississippi 2DR — DR DR — J Mississippi D — AJ D — W D — D D — D D — Mississippi D D — — — — — 2R — R D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D D — D D — D D — D D — D D Mississippi — D D — D R — D R — R R — R R — R R — R R — R R — R R Mississippi
North Carolina PA PA — AA DR — DR DR — DR DR — DR DR — DR DR — DR J — North Carolina D D — D D — W D — W W — D D North Carolina — D D — — — 2R D D — D D — D D — D D — Po North Carolina R — D D — D D — D D — D D — D D — D North Carolina D — D D — D D — D D — D D — D D — D North Carolina D — R D — R R — R D — R R — R D — R R — D R — R R — R North Carolina
Oklahoma Oklahoma Oklahoma Oklahoma 2D D — D D — D R — R D — D Oklahoma D — D D — R D — D D — D D — D D — D Oklahoma R — R R — D R — D R — D R — R R — R R — R R — R R — R Oklahoma
South Carolina PA PA — AA F — DR DR — DR DR — DR DR — DR DR — DR J — South Carolina D Nu — Nu W — D D — D D — D D South Carolina — D — — — — 2R R R — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — D South Carolina D — D D — D D — D D — D D — D D — R South Carolina D — R D — R D — R D — R D — R D — R R — R R — R R — R South Carolina
Tennessee 2DR DR — DR DR — DR DR — DR DR — DR DR — J Tennessee D — D W — D W — D W — W W — Tennessee D D — — — Sp R D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D D Tennessee — D D — D D — D D — D D — D D — D R Tennessee — R R — D R — D D — D D — R R — R R — R R — R R — R R Tennessee
Texas Texas 2D — D D — Texas D D — — — — — 2R — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D D Texas — D D — D D — D D — D D — D D — D R Texas — D R — D R — D R — D R — R R — R R — R R — R R — R R Texas
Virginia AA AA AA AA — DR DR — DR DR — DR DR — DR DR — DR DR — J Virginia D — AJ W — W W — D D — D D — Virginia D D — U[4] N[5] — — Sp — D D — Ra Ra — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — D D — D D — D D — D D — D D — D D Virginia — I R — I R — R R — D R — D R — R R — D D — D D — D D Virginia
West Virginia Part of Virginia Part of Virginia West Virginia Part of Virginia West Virginia 2U R — R D — D D — D D — D D — D R West Virginia — R R — R R — D R — R R — D R — R D West Virginia — D D — D R — D D — D D — D D — D D West Virginia — D D — D D — D D — D D — D D — D D — D D — D R — D R West Virginia
State 1st 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

Midwest

[edit]
First Party System Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[3]
State 1802 1804 1806 1808 1810 1812 1814 1816 1818 1820 1822 1824 1826 State 1828 1830 1832 1834 1836 1838 1840 1842 1844 1846 1848 1850 1852 1854 State 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Illinois 2DR — DR J — Illinois D D — D D — D D — D D — D D Illinois — D R — R R — R R — I R — R R — R D — R Illinois R — R R — R R — D R — R R — R R — D Illinois D — D D — R D — D R — D R — D R — R Illinois R — R D — R D — D D — D D — D R — D D — D R — D D — D Illinois
Indiana 2DR DR DR — AJ AJ Indiana — AJ D — W W — D D — D D — D Indiana D — R D — R R — R D — D R — D D — D D — Indiana R R — R R — D D — D R — R D — R R — Indiana D D — D R — R R — R R — R D — D D — Indiana D D — D R — R R — R R — R R — D R — D R — R D — R R — Indiana
Iowa Iowa 2D — D FS Iowa — R R — R R — R R — R R — R R — R R — R Iowa R — R R — R R — R R — R R — R R — R Iowa D — D D — R R — D R — R R — R R — R Iowa D — D D — R R — D R — D R — D R — D R — D R — R R — R Iowa
Kansas Kansas Kansas 2R — R R — R R — R R — R R — R Po — R Kansas Po — R R — R R — D R — R R — R R — R Kansas D — R R — R R — R R — R R — R R — R Kansas R — R R — R R — R R — R R — R R — R R — R R — R R — R Kansas
Michigan Michigan 2D W — D D — D D — Michigan R R — R R — R R — R R — R R — R R — R R Michigan — R R — R R — R R — R R — D R — R R Michigan — R D — R R — R R — R D — D D — D R Michigan — D R — D D — D D — D D — R D — D D — D D — D D — D D Michigan
Minnesota Minnesota Minnesota Sp[6] — R R — R R — R R — R R — R R — R R Minnesota — R R — R R — R R — R R — FL R — FL R Minnesota — FL FL — R R — R D — R D — D D — D D Minnesota — D D — D R — R R — R D — R D — D R — D D — D D — D D Minnesota
Missouri 2DR — AJ J Missouri — D D — D D — D D — D W — D Missouri D — D U — R R — D D — D D — D D — D D — Missouri D D — D R — D D — D D — R D — D R — Missouri D D — D D — R R — D D — D D — D D — Missouri D D — D R — D R — R R — R R — R R — R D — R D — R R — Missouri
Nebraska Nebraska Nebraska 2R R R — R R — R R — R R — Po R Nebraska — R R — R R — D R — D R — R R — R R Nebraska — D I — R R — R R — R R — R R — R R Nebraska — R R — D D — D D — D D — D R — D R — D R — R R — R R Nebraska
North Dakota North Dakota North Dakota 2R R D — North Dakota R R — R R — R R — R R — R R — R R — North Dakota R R — R R — D R — R R — R R — R D — North Dakota R D — R D — R D — D D — D D — D D — D D — R D — R R — North Dakota
Ohio 2DR — DR DR — DR DR — DR DR — AJ AJ Ohio — AJ D — D D — D W — FS W — D Ohio R — R R — R D — R D — D R — D R — D R — Ohio R R — R R — R D — R D — R R — R R — Ohio D D — R R — R R — R R — D D — D D — Ohio R R — D D — D D — D D — D R — R R — R D — R D — R D — Ohio
South Dakota South Dakota South Dakota 2R I — R South Dakota Po — R R — R R — R D — R R — R R — D South Dakota R — D R — R R — R R — R R — R D — R South Dakota D — D D — R R — R D — R D — D D — D R — D R — R R — R South Dakota
Wisconsin Wisconsin 2D D — R Wisconsin R — R R — R R — R R — R R — R R — D D — Wisconsin R R — R R — R R — D R — R R — R R — Wisconsin D Pr — R R — R R — R R — R D — D D — Wisconsin D D — D D — R D — R D — D D — D D — D D — R D — R D — Wisconsin
State 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th 18th 19th 20th State 21st 22nd 23rd 24th 25th 26th 27th 28th 29th 30th 31st 32nd 33rd 34th State 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

West

[edit]
Second Party System Third Party System Fourth Party System Fifth Party System Sixth Party System[3]
State 1850 1852 1854 1856 1858 1860 1862 1864 1866 1868 1870 1872 1874 1876 1878 1880 1882 1884 1886 1888 1890 1892 1894 State 1896 1898 1900 1902 1904 1906 1908 1910 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 State 1932 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1962 1964 1966 State 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 State
Alaska Alaska Alaska 2D D D — D Alaska D — R D — R R — R R — R R — R R — R R — D R — R R — Alaska
Arizona Arizona 2D D D — R D — D D — Arizona D D — D D — D D — D R — D R — D R — Arizona R R — R D — R D — R D — R R — R R — R R — R R — R D — Arizona
California 2D — D D — D R — R D — R AM — D R — R D — R D — California R R — R R — R R — D R — R R — R R — California D R — D R — D R — R R — R D — R R — California D D — D R — D R — D R — D D — D D — D D — D D — D D — California
Colorado 2R R — R R — R SR — R Colorado D — D D — R D — D D — R R — R R — D Colorado D — D D — D R — D R — R D — R R — R Colorado R — D D — R D — R D — R R — R R — R D — D D — R D — D Colorado
Hawaii Hawaii Hawaii Sp — R R — Hawaii D R — D D — D D — D D — D D — D D — D D — D D — D D — Hawaii
Idaho 2R — R Idaho Po — SR R — R R — R R — R R — R R — R Idaho D — R D — R D — D R — R D — R D — R Idaho D — R D — R R — R R — R R — R R — R R — R R — R R — R Idaho
Montana 2R — R R Montana — D D — R R — D D — D D — D D — D D Montana — D D — D D — R D — D D — D D — D D Montana — D D — D D — D D — R D — R D — R D — D D — D R — D R Montana
Nevada 2R R R — R R — R D — R R — R SR — Nevada Si SR — D R — D R — D D — R D — R D — Nevada D D — D D — D R — D R — D D — D D — Nevada D D — R D — R R — D D — D D — D R — D R — D R — D D — Nevada
New Mexico New Mexico 2R — D R — D D — R D New Mexico — R D — D D — D D — D D — D D — D D New Mexico — D R — R R — D R — D R — D R — D R — D D — D D — D D New Mexico
Oregon 2D R — R R — D R — D D — R R — R R — R Oregon R — R R — R D — D D — R R — R R — R Oregon R — R R — R R — R R — D D — D D — R Oregon R — R R — R R — R R — R R — R D — R D — D D — D D — D Oregon
Utah Utah Sp[7] R — R R — R R — R D — R D — R D — Utah D D — D D — D R — R R — R D — R D — Utah R D — R R — R R — R R — R R — R R — R R — R R — R R — Utah
Washington 2R R R — Washington R R — R R — R R — R R — R D — R D — Washington D D — D D — D R — D D — D D — D D — Washington D D — D D — R D — D R — D R — D D — D D — D D — D D — Washington
Wyoming 2R R R Wyoming — R R — R R — R R — D R — D R — D R Wyoming — D D — D R — D D — R D — D R — D R Wyoming — D R — R R — R R — R R — R R — R R — R R — R R — R R Wyoming
State 32nd 33rd 34th 35th 36th 37th 38th 39th 40th 41st 42nd 43rd 44th 45th 46th 47th 48th 49th 50th 51st 52nd 53rd 54th State 55th 56th 57th 58th 59th 60th 61st 62nd 63rd 64th 65th 66th 67th 68th 69th 70th 71st 72nd State 73rd 74th 75th 76th 77th 78th 79th 80th 81st 82nd 83rd 84th 85th 86th 87th 88th 89th 90th State 91st 92nd 93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd 103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th 113th 114th 115th 116th 117th State

See also

[edit]

References

[edit]
  • Martis, Kenneth C. The Historical Atlas of Political Parties in the United States Congress.

Notes

[edit]
  1. ^ Candidates from two different parties were elected. This occasionally occurred when a state delegation was first admitted or re-admitted to the Senate. Unless otherwise noted, the split was between the Republican and Democratic parties.
  2. ^ Includes members of the Unconditional Union Party and other candidates elected under the "unionist" label.
  3. ^ a b c d There is no consensus definition for the beginning or ending date of the Sixth Party System.
  4. ^ Elected by the Restored Government of Virginia.
  5. ^ The Virginia legislature elected two Unionists in 1865, but the Senate refused to seat either candidate.
  6. ^ Two Democrats were elected in 1858, but a Republican replaced one of the Democrats in an 1859 election.
  7. ^ Two Republicans were elected in 1896, but a Democrat replaced a Republican in an 1897 election.
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