# List of United States Senate election results by state

The following table shows regularly-scheduled United States Senate elections by state by year. The table does not include appointments or special elections, though it does include elections that occurred upon a state delegation's admission or readmission to the Senate. The table also includes elections that filled vacancies to unexpired terms that had never been filled due to legislative deadlock or an elected candidate's failure to qualify. The table does not denote post-election party switching. Note that, particularly prior to the ratification of the 17th Amendment in 1913, many regular elections took place in odd years rather than in the preceding even years.

## Legend

| 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 |
| DR | Democratic-Republican Party | Nu | Nullifier Party | U | Unionists | | | | |
| J | Jacksonians | W | Whig Party | Ra | Readjuster Party | | | | |

## Table

* First (1794–1822)
* Second (1828–1854)
* Third (1856–1894)
* Fourth (1896–1930)
* Fifth (1932–1966)
* Sixth (1968–present)
| | | | | | | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | | | | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System |
| Year → Class → Congress → | 1789 1 1st | 1789 2 1st | 1789 3 1st | 1790 1 2nd | 1792 2 3rd | 1794 3 4th | 1796 1 5th | 1798 2 6th | 1800 3 7th | 1802 1 8th | 1804 2 9th | 1806 3 10th | 1808 1 11th | 1810 2 12th | 1812 3 13th | 1814 1 14th | 1816 2 15th | 1818 3 16th | 1820 1 17th | 1822 2 18th | 1824 3 19th | 1826 1 20th | Year → Class → Congress → | 1828 2 21st | 1830 3 22nd | 1832 1 23rd | 1834 2 24th | 1836 3 25th | 1838 1 26th | 1840 2 27th | 1842 3 28th | 1844 1 29th | 1846 2 30th | 1848 3 31st | 1850 1 32nd | 1852 2 33rd | 1854 3 34th | Year → Class → Congress → | 1856 1 35th | 1858 2 36th | 1860 3 37th | 1862 1 38th | 1864 2 39th | 1866 3 40th | 1868 1 41st | 1870 2 42nd | 1872 3 43rd | 1874 1 44th | 1876 2 45th | 1878 3 46th | 1880 1 47th | 1882 2 48th | 1884 3 49th | 1886 1 50th | 1888 2 51st | 1890 3 52nd | 1892 1 53rd | 1894 2 54th | Year → Class → Congress → | 1896 3 55th | 1898 1 56th | 1900 2 57th | 1902 3 58th | 1904 1 59th | 1906 2 60th | 1908 3 61st | 1910 1 62nd | 1912 2 63rd | 1914 3 64th | 1916 1 65th | 1918 2 66th | 1920 3 67th | 1922 1 68th | 1924 2 69th | 1926 3 70th | 1928 1 71st | 1930 2 72nd | Year → Class → Congress → | 1932 3 73rd | 1934 1 74th | 1936 2 75th | 1938 3 76th | 1940 1 77th | 1942 2 78th | 1944 3 79th | 1946 1 80th | 1948 2 81st | 1950 3 82nd | 1952 1 83rd | 1954 2 84th | 1956 3 85th | 1958 1 86th | 1960 2 87th | 1962 3 88th | 1964 1 89th | 1966 2 90th | Year → Class → Congress → | 1968 3 91st | 1970 1 92nd | 1972 2 93rd | 1974 3 94th | 1976 1 95th | 1978 2 96th | 1980 3 97th | 1982 1 98th | 1984 2 99th | 1986 3 100th | 1988 1 101st | 1990 2 102nd | 1992 3 103rd | 1994 1 104th | 1996 2 105th | 1998 3 106th | 2000 1 107th | 2002 2 108th | 2004 3 109th | 2006 1 110th | 2008 2 111th | 2010 3 112th | 2012 1 113th | 2014 2 114th | 2016 3 115th | 2018 1 116th | 2020 2 117th | 2022 3 118th |
| 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 | R |
| Alaska | | | | | | | | | | | | | | | | | | | | | | | Alaska | | | | | | | | | | | | | | | 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 | — | R | R |
| Arizona | | | | | | | | | | | | | | | | | | | | | | | Arizona | | | | | | | | | | | | | | | 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 | — | D |
| 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 | R |
| California | | | | | | | | | | | | | | | | | | | | | | | California | | | | | | | | | | | | 2D | — | D | California | 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 | — | D |
| Colorado | | | | | | | | | | | | | | | | | | | | | | | Colorado | | | | | | | | | | | | | | | 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 | D |
| 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 | — | D |
| 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 | — |
| 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 | — | R |
| 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 | — | D | D |
| Hawaii | | | | | | | | | | | | | | | | | | | | | | | Hawaii | | | | | | | | | | | | | | | Hawaii | | | | | | | | | | | | | | | | | | | | | Hawaii | | | | | | | | | | | | | | | | | | | Hawaii | | | | | | | | | | | | | | Sp | — | D | R | — | Hawaii | D | R | — | D | D | — | D | D | — | D | D | — | D | D | — | D | D | — | D | D | — | D | D | — | D | D | — | D |
| Idaho | | | | | | | | | | | | | | | | | | | | | | | Idaho | | | | | | | | | | | | | | | 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 | R |
| 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 | D |
| 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 | — | R |
| 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 | R |
| 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 | R |
| Kentucky | | | | | 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 | R |
| Year → Class → Congress → | 1789 1 1st | 1789 2 1st | 1789 3 1st | 1790 1 2nd | 1792 2 3rd | 1794 3 4th | 1796 1 5th | 1798 2 6th | 1800 3 7th | 1802 1 8th | 1804 2 9th | 1806 3 10th | 1808 1 11th | 1810 2 12th | 1812 3 13th | 1814 1 14th | 1816 2 15th | 1818 3 16th | 1820 1 17th | 1822 2 18th | 1824 3 19th | 1826 1 20th | Year → Class → Congress → | 1828 2 21st | 1830 3 22nd | 1832 1 23rd | 1834 2 24th | 1836 3 25th | 1838 1 26th | 1840 2 27th | 1842 3 28th | 1844 1 29th | 1846 2 30th | 1848 3 31st | 1850 1 32nd | 1852 2 33rd | 1854 3 34th | Year → Class → Congress → | 1856 1 35th | 1858 2 36th | 1860 3 37th | 1862 1 38th | 1864 2 39th | 1866 3 40th | 1868 1 41st | 1870 2 42nd | 1872 3 43rd | 1874 1 44th | 1876 2 45th | 1878 3 46th | 1880 1 47th | 1882 2 48th | 1884 3 49th | 1886 1 50th | 1888 2 51st | 1890 3 52nd | 1892 1 53rd | 1894 2 54th | Year → Class → Congress → | 1896 3 55th | 1898 1 56th | 1900 2 57th | 1902 3 58th | 1904 1 59th | 1906 2 60th | 1908 3 61st | 1910 1 62nd | 1912 2 63rd | 1914 3 64th | 1916 1 65th | 1918 2 66th | 1920 3 67th | 1922 1 68th | 1924 2 69th | 1926 3 70th | 1928 1 71st | 1930 2 72nd | Year → Class → Congress → | 1932 3 73rd | 1934 1 74th | 1936 2 75th | 1938 3 76th | 1940 1 77th | 1942 2 78th | 1944 3 79th | 1946 1 80th | 1948 2 81st | 1950 3 82nd | 1952 1 83rd | 1954 2 84th | 1956 3 85th | 1958 1 86th | 1960 2 87th | 1962 3 88th | 1964 1 89th | 1966 2 90th | Year → Class → Congress → | 1968 3 91st | 1970 1 92nd | 1972 2 93rd | 1974 3 94th | 1976 1 95th | 1978 2 96th | 1980 3 97th | 1982 1 98th | 1984 2 99th | 1986 3 100th | 1988 1 101st | 1990 2 102nd | 1992 3 103rd | 1994 1 104th | 1996 2 105th | 1998 3 106th | 2000 1 107th | 2002 2 108th | 2004 3 109th | 2006 1 110th | 2008 2 111th | 2010 3 112th | 2012 1 113th | 2014 2 114th | 2016 3 115th | 2018 1 116th | 2020 2 117th | 2022 3 118th |
| 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 | R |
| Maine | | | | | | | | | | | | | | | | | | | 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 | — |
| 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 | — | D |
| 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 | — |
| 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 | — |
| Minnesota | | | | | | | | | | | | | | | | | | | | | | | Minnesota | | | | | | | | | | | | | | | Minnesota | | Sp | — | 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 | — |
| 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 | — |
| 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 | — | R |
| Montana | | | | | | | | | | | | | | | | | | | | | | | Montana | | | | | | | | | | | | | | | 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 | — |
| 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 | — |
| Nevada | | | | | | | | | | | | | | | | | | | | | | | Nevada | | | | | | | | | | | | | | | 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 | — | D |
| 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 | D |
| New Jersey | PA | PA | — | PA | PA | — | 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 Mexico | | | | | | | | | | | | | | | | | | | | | | | New Mexico | | | | | | | | | | | | | | | 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 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 | — | D |
| 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 | R |
| 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 | — | R |
| Year → Class → Congress → | 1789 1 1st | 1789 2 1st | 1789 3 1st | 1790 1 2nd | 1792 2 3rd | 1794 3 4th | 1796 1 5th | 1798 2 6th | 1800 3 7th | 1802 1 8th | 1804 2 9th | 1806 3 10th | 1808 1 11th | 1810 2 12th | 1812 3 13th | 1814 1 14th | 1816 2 15th | 1818 3 16th | 1820 1 17th | 1822 2 18th | 1824 3 19th | 1826 1 20th | Year → Class → Congress → | 1828 2 21st | 1830 3 22nd | 1832 1 23rd | 1834 2 24th | 1836 3 25th | 1838 1 26th | 1840 2 27th | 1842 3 28th | 1844 1 29th | 1846 2 30th | 1848 3 31st | 1850 1 32nd | 1852 2 33rd | 1854 3 34th | Year → Class → Congress → | 1856 1 35th | 1858 2 36th | 1860 3 37th | 1862 1 38th | 1864 2 39th | 1866 3 40th | 1868 1 41st | 1870 2 42nd | 1872 3 43rd | 1874 1 44th | 1876 2 45th | 1878 3 46th | 1880 1 47th | 1882 2 48th | 1884 3 49th | 1886 1 50th | 1888 2 51st | 1890 3 52nd | 1892 1 53rd | 1894 2 54th | Year → Class → Congress → | 1896 3 55th | 1898 1 56th | 1900 2 57th | 1902 3 58th | 1904 1 59th | 1906 2 60th | 1908 3 61st | 1910 1 62nd | 1912 2 63rd | 1914 3 64th | 1916 1 65th | 1918 2 66th | 1920 3 67th | 1922 1 68th | 1924 2 69th | 1926 3 70th | 1928 1 71st | 1930 2 72nd | Year → Class → Congress → | 1932 3 73rd | 1934 1 74th | 1936 2 75th | 1938 3 76th | 1940 1 77th | 1942 2 78th | 1944 3 79th | 1946 1 80th | 1948 2 81st | 1950 3 82nd | 1952 1 83rd | 1954 2 84th | 1956 3 85th | 1958 1 86th | 1960 2 87th | 1962 3 88th | 1964 1 89th | 1966 2 90th | Year → Class → Congress → | 1968 3 91st | 1970 1 92nd | 1972 2 93rd | 1974 3 94th | 1976 1 95th | 1978 2 96th | 1980 3 97th | 1982 1 98th | 1984 2 99th | 1986 3 100th | 1988 1 101st | 1990 2 102nd | 1992 3 103rd | 1994 1 104th | 1996 2 105th | 1998 3 106th | 2000 1 107th | 2002 2 108th | 2004 3 109th | 2006 1 110th | 2008 2 111th | 2010 3 112th | 2012 1 113th | 2014 2 114th | 2016 3 115th | 2018 1 116th | 2020 2 117th | 2022 3 118th |
| 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 | — | R |
| 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 | R |
| Oregon | | | | | | | | | | | | | | | | | | | | | | | Oregon | | | | | | | | | | | | | | | 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 | D |
| 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 | — | D |
| 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 | — |
| 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 | R |
| 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 | R |
| 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 | — |
| 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 | — |
| Utah | | | | | | | | | | | | | | | | | | | | | | | Utah | | | | | | | | | | | | | | | Utah | | | | | | | | | | | | | | | | | | | | | Utah | Sp | 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 | — | R |
| 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 | — | D |
| 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 | N | — | — | 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 | — |
| Washington | | | | | | | | | | | | | | | | | | | | | | | Washington | | | | | | | | | | | | | | | 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 | — | D |
| West Virginia | | | | | | | | | | | | | | | | | | | | | | | West 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 | — |
| 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 | — | R |
| Wyoming | | | | | | | | | | | | | | | | | | | | | | | Wyoming | | | | | | | | | | | | | | | 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 | — |
| Year → Class → Congress → | 1789 1 1st | 1789 2 1st | 1789 3 1st | 1790 1 2nd | 1792 2 3rd | 1794 3 4th | 1796 1 5th | 1798 2 6th | 1800 3 7th | 1802 1 8th | 1804 2 9th | 1806 3 10th | 1808 1 11th | 1810 2 12th | 1812 3 13th | 1814 1 14th | 1816 2 15th | 1818 3 16th | 1820 1 17th | 1822 2 18th | 1824 3 19th | 1826 1 20th | Year → Class → Congress → | 1828 2 21st | 1830 3 22nd | 1832 1 23rd | 1834 2 24th | 1836 3 25th | 1838 1 26th | 1840 2 27th | 1842 3 28th | 1844 1 29th | 1846 2 30th | 1848 3 31st | 1850 1 32nd | 1852 2 33rd | 1854 3 34th | Year → Class → Congress → | 1856 1 35th | 1858 2 36th | 1860 3 37th | 1862 1 38th | 1864 2 39th | 1866 3 40th | 1868 1 41st | 1870 2 42nd | 1872 3 43rd | 1874 1 44th | 1876 2 45th | 1878 3 46th | 1880 1 47th | 1882 2 48th | 1884 3 49th | 1886 1 50th | 1888 2 51st | 1890 3 52nd | 1892 1 53rd | 1894 2 54th | Year → Class → Congress → | 1896 3 55th | 1898 1 56th | 1900 2 57th | 1902 3 58th | 1904 1 59th | 1906 2 60th | 1908 3 61st | 1910 1 62nd | 1912 2 63rd | 1914 3 64th | 1916 1 65th | 1918 2 66th | 1920 3 67th | 1922 1 68th | 1924 2 69th | 1926 3 70th | 1928 1 71st | 1930 2 72nd | Year → Class → Congress → | 1932 3 73rd | 1934 1 74th | 1936 2 75th | 1938 3 76th | 1940 1 77th | 1942 2 78th | 1944 3 79th | 1946 1 80th | 1948 2 81st | 1950 3 82nd | 1952 1 83rd | 1954 2 84th | 1956 3 85th | 1958 1 86th | 1960 2 87th | 1962 3 88th | 1964 1 89th | 1966 2 90th | Year → Class → Congress → | 1968 3 91st | 1970 1 92nd | 1972 2 93rd | 1974 3 94th | 1976 1 95th | 1978 2 96th | 1980 3 97th | 1982 1 98th | 1984 2 99th | 1986 3 100th | 1988 1 101st | 1990 2 102nd | 1992 3 103rd | 1994 1 104th | 1996 2 105th | 1998 3 106th | 2000 1 107th | 2002 2 108th | 2004 3 109th | 2006 1 110th | 2008 2 111th | 2010 3 112th | 2012 1 113th | 2014 2 114th | 2016 3 115th | 2018 1 116th | 2020 2 117th | 2022 3 118th |
| | | | | | | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | First Party System | | | | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | Second Party System | | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | Third Party System | | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System |

## Analytical tables

Last updated after the 2014 elections.

### Results

| | First Party System | First Party System | First Party System | Second Party System | Second Party System | Second Party System | Second Party System | Third Party System | Third Party System | Third Party System | Third Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Overall since 1828 | Overall since 1828 | Overall since 1828 | Overall since 1828 |
| State | DR votes | F votes | % DR | D votes | AJ/W votes | Other votes | % D | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D | State | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D |
| Alabama | 3 | 0 | 100 | 10 | 0 | 0 | 100 | 9 | 3 | 0 | 75 | 12 | 0 | 0 | 100 | Alabama | 12 | 0 | 0 | 100 | 8 | 8 | 0 | 50 | 51 | 11 | 0 | 82 |
| Alaska | | | | | | | | | | | | | | | | Alaska | 5 | 0 | 0 | 100 | 3 | 13 | 0 | 19 | 8 | 13 | 0 | 38 |
| Arizona | | | | | | | | | | | | 7 | 1 | 0 | 88 | Arizona | 9 | 3 | 0 | 75 | 3 | 13 | 0 | 19 | 19 | 17 | 0 | 53 |
| Arkansas | | | | 8 | 0 | 0 | 100 | 9 | 4 | 0 | 69 | 12 | 0 | 0 | 100 | Arkansas | 12 | 0 | 0 | 100 | 13 | 3 | 0 | 81 | 54 | 7 | 0 | 89 |
| California | | | | 3 | 0 | 0 | 100 | 6 | 6 | 1 | 46 | 1 | 11 | 0 | 8 | California | 4 | 8 | 0 | 33 | 13 | 3 | 0 | 81 | 27 | 28 | 1 | 48 |
| Colorado | | | | | | | | 0 | 7 | 1 | 0 | 7 | 5 | 0 | 58 | Colorado | 6 | 6 | 0 | 50 | 7 | 9 | 0 | 44 | 20 | 27 | 1 | 42 |
| Connecticut | 2 | 8 | 20 | 3 | 5 | 1 | 33 | 1 | 11 | 1 | 8 | 0 | 12 | 0 | 0 | Connecticut | 8 | 4 | 0 | 67 | 13 | 3 | 0 | 81 | 24 | 31 | 7 | 39 |
| Delaware | 0 | 10 | 0 | 1 | 8 | 0 | 11 | 13 | 1 | 0 | 93 | 3 | 9 | 0 | 25 | Delaware | 4 | 8 | 0 | 33 | 11 | 5 | 0 | 69 | 32 | 31 | 8 | 45 |
| Florida | | | | 4 | 1 | 0 | 80 | 8 | 3 | 0 | 73 | 12 | 0 | 0 | 100 | Florida | 12 | 0 | 0 | 100 | 10 | 6 | 0 | 63 | 46 | 9 | 1 | 82 |
| Georgia | 9 | 1 | 90 | 7 | 3 | 0 | 70 | 10 | 1 | 0 | 91 | 12 | 0 | 0 | 100 | Georgia | 12 | 0 | 0 | 100 | 8 | 8 | 0 | 50 | 49 | 9 | 3 | 80 |
| Hawaii | | | | | | | | | | | | | | | | Hawaii | 2 | 3 | 0 | 40 | 15 | 1 | 0 | 94 | 17 | 4 | 0 | 81 |
| Idaho | | | | | | | | 0 | 3 | 0 | 0 | 0 | 10 | 2 | 0 | Idaho | 6 | 6 | 0 | 50 | 2 | 14 | 0 | 13 | 8 | 33 | 2 | 19 |
| Illinois | 3 | 0 | 100 | 10 | 0 | 0 | 100 | 2 | 10 | 1 | 15 | 2 | 10 | 0 | 17 | Illinois | 7 | 5 | 0 | 58 | 11 | 5 | 0 | 69 | 32 | 30 | 1 | 51 |
| Indiana | 4 | 0 | 100 | 6 | 3 | 0 | 67 | 8 | 5 | 0 | 62 | 4 | 8 | 0 | 33 | Indiana | 6 | 6 | 0 | 50 | 6 | 10 | 0 | 38 | 30 | 29 | 3 | 48 |
| Iowa | | | | 3 | 0 | 1 | 75 | 0 | 13 | 0 | 0 | 0 | 12 | 0 | 0 | Iowa | 4 | 8 | 0 | 33 | 8 | 8 | 0 | 50 | 15 | 41 | 1 | 26 |
| Kansas | | | | | | | | 0 | 12 | 1 | 0 | 1 | 10 | 1 | 8 | Kansas | 1 | 11 | 0 | 8 | 0 | 16 | 0 | 0 | 2 | 49 | 2 | 4 |
| Kentucky | 9 | 1 | 90 | 1 | 9 | 0 | 10 | 13 | 0 | 0 | 100 | 8 | 4 | 0 | 67 | Kentucky | 8 | 4 | 0 | 67 | 6 | 10 | 0 | 38 | 36 | 28 | 9 | 49 |
| Louisiana | 5 | 0 | 100 | 7 | 3 | 0 | 70 | 8 | 4 | 0 | 67 | 12 | 0 | 0 | 100 | Louisiana | 12 | 0 | 0 | 100 | 13 | 3 | 0 | 81 | 52 | 7 | 3 | 84 |
| Maine | 3 | 0 | 100 | 6 | 3 | 0 | 66 | 1 | 13 | 0 | 7 | 1 | 11 | 0 | 8 | Maine | 2 | 10 | 0 | 17 | 5 | 10 | 1 | 31 | 15 | 44 | 4 | 24 |
| Maryland | 6 | 4 | 60 | 0 | 9 | 0 | 0 | 11 | 0 | 2 | 85 | 7 | 5 | 0 | 58 | Maryland | 8 | 4 | 0 | 67 | 12 | 4 | 0 | 75 | 38 | 13 | 11 | 61 |
| Massachusetts | 1 | 9 | 10 | 0 | 8 | 1 | 0 | 0 | 14 | 0 | 0 | 3 | 9 | 0 | 25 | Massachusetts | 5 | 7 | 0 | 42 | 15 | 1 | 0 | 94 | 23 | 31 | 9 | 37 |
| Michigan | | | | 6 | 1 | 0 | 86 | 0 | 14 | 0 | 0 | 1 | 11 | 0 | 8 | Michigan | 5 | 7 | 0 | 42 | 14 | 2 | 0 | 88 | 26 | 34 | 1 | 43 |
| Minnesota | | | | | | | | 1 | 13 | 0 | 7 | 0 | 10 | 2 | 0 | Minnesota | 6 | 4 | 2 | 50 | 10 | 6 | 0 | 63 | 17 | 33 | 4 | 31 |
| Mississippi | 4 | 0 | 100 | 7 | 2 | 0 | 78 | 9 | 3 | 0 | 75 | 12 | 0 | 0 | 100 | Mississippi | 12 | 0 | 0 | 100 | 4 | 12 | 0 | 25 | 44 | 15 | 2 | 72 |
| Missouri | 2 | 0 | 100 | 8 | 1 | 0 | 89 | 10 | 2 | 1 | 77 | 9 | 3 | 0 | 75 | Missouri | 10 | 2 | 0 | 83 | 6 | 10 | 0 | 38 | 43 | 17 | 2 | 69 |
| Montana | | | | | | | | 0 | 4 | 0 | 0 | 10 | 2 | 0 | 83 | Montana | 11 | 1 | 0 | 92 | 12 | 4 | 0 | 75 | 33 | 11 | 0 | 75 |
| Nebraska | | | | | | | | 0 | 11 | 1 | 0 | 2 | 10 | 0 | 17 | Nebraska | 1 | 10 | 1 | 8 | 10 | 6 | 0 | 63 | 13 | 37 | 2 | 25 |
| Nevada | | | | | | | | 1 | 10 | 1 | 8 | 6 | 4 | 2 | 50 | Nevada | 10 | 2 | 0 | 83 | 10 | 6 | 0 | 63 | 27 | 22 | 3 | 52 |
| New Hampshire | 7 | 3 | 70 | 7 | 1 | 2 | 70 | 0 | 13 | 0 | 0 | 1 | 11 | 0 | 8 | New Hampshire | 2 | 10 | 0 | 17 | 4 | 12 | 0 | 25 | 14 | 47 | 2 | 22 |
| New Jersey | 8 | 2 | 80 | 3 | 6 | 0 | 33 | 10 | 4 | 0 | 71 | 3 | 9 | 0 | 25 | New Jersey | 4 | 8 | 0 | 33 | 15 | 1 | 0 | 94 | 35 | 22 | 6 | 56 |
| New Mexico | | | | | | | | | | | | 4 | 4 | 0 | 50 | New Mexico | 11 | 1 | 0 | 92 | 9 | 7 | 0 | 56 | 24 | 12 | 0 | 67 |
| New York | 6 | 4 | 60 | 5 | 3 | 1 | 63 | 3 | 10 | 0 | 23 | 4 | 8 | 0 | 33 | New York | 7 | 5 | 0 | 58 | 10 | 5 | 1 | 63 | 29 | 29 | 4 | 47 |
| North Carolina | 10 | 0 | 100 | 7 | 3 | 0 | 70 | 10 | 2 | 1 | 77 | 11 | 1 | 0 | 92 | North Carolina | 12 | 0 | 0 | 100 | 5 | 11 | 0 | 31 | 45 | 14 | 4 | 71 |
| North Dakota | | | | | | | | 1 | 3 | 0 | 25 | 0 | 12 | 0 | 0 | North Dakota | 2 | 10 | 0 | 17 | 12 | 4 | 0 | 75 | 15 | 29 | 0 | 34 |
| Ohio | 8 | 0 | 100 | 5 | 3 | 1 | 56 | 5 | 8 | 0 | 38 | 2 | 10 | 0 | 17 | Ohio | 6 | 6 | 0 | 50 | 9 | 7 | 0 | 56 | 27 | 31 | 4 | 44 |
| Oklahoma | | | | | | | | | | | | 8 | 2 | 0 | 80 | Oklahoma | 11 | 1 | 0 | 92 | 3 | 13 | 0 | 19 | 22 | 16 | 0 | 58 |
| Oregon | | | | | | | | 5 | 9 | 0 | 31 | 3 | 9 | 0 | 25 | Oregon | 4 | 8 | 0 | 33 | 5 | 11 | 0 | 31 | 17 | 37 | 0 | 31 |
| Pennsylvania | 8 | 2 | 80 | 8 | 1 | 0 | 89 | 2 | 11 | 0 | 15 | 0 | 12 | 0 | 0 | Pennsylvania | 5 | 7 | 0 | 42 | 2 | 14 | 0 | 13 | 17 | 44 | 1 | 27 |
| Rhode Island | 5 | 5 | 50 | 2 | 7 | 0 | 22 | 0 | 14 | 0 | 0 | 2 | 10 | 0 | 17 | Rhode Island | 12 | 0 | 0 | 100 | 11 | 5 | 0 | 69 | 27 | 29 | 7 | 43 |
| South Carolina | 9 | 1 | 90 | 7 | 1 | 2 | 70 | 8 | 4 | 0 | 66 | 12 | 0 | 0 | 100 | South Carolina | 11 | 1 | 0 | 92 | 6 | 10 | 0 | 38 | 44 | 15 | 3 | 71 |
| South Dakota | | | | | | | | 0 | 3 | 1 | 0 | 2 | 9 | 1 | 17 | South Dakota | 2 | 10 | 0 | 17 | 9 | 7 | 0 | 56 | 13 | 29 | 2 | 30 |
| Tennessee | 11 | 0 | 100 | 4 | 5 | 0 | 44 | 12 | 2 | 0 | 86 | 12 | 0 | 0 | 100 | Tennessee | 11 | 1 | 0 | 92 | 5 | 11 | 0 | 31 | 44 | 14 | 5 | 70 |
| Texas | | | | 4 | 0 | 0 | 100 | 10 | 2 | 0 | 83 | 12 | 0 | 0 | 100 | Texas | 11 | 1 | 0 | 92 | 4 | 12 | 0 | 25 | 39 | 15 | 0 | 72 |
| Utah | | | | | | | | | | | | 4 | 9 | 0 | 31 | Utah | 7 | 5 | 0 | 58 | 1 | 15 | 0 | 6 | 12 | 29 | 0 | 29 |
| Vermont | 6 | 4 | 60 | 0 | 9 | 0 | 0 | 0 | 13 | 0 | 0 | 0 | 12 | 0 | 0 | Vermont | 0 | 12 | 0 | 0 | 7 | 7 | 2 | 44 | 7 | 44 | 11 | 11 |
| Virginia | 10 | 0 | 100 | 5 | 4 | 0 | 56 | 9 | 1 | 3 | 69 | 12 | 0 | 0 | 100 | Virginia | 12 | 0 | 0 | 100 | 6 | 8 | 2 | 38 | 44 | 9 | 9 | 71 |
| Washington | | | | | | | | 0 | 4 | 0 | 0 | 2 | 10 | 0 | 17 | Washington | 11 | 1 | 0 | 92 | 13 | 3 | 0 | 81 | 26 | 18 | 0 | 59 |
| West Virginia | | | | | | | | 8 | 3 | 2 | 62 | 3 | 9 | 0 | 25 | West Virginia | 11 | 1 | 0 | 92 | 15 | 1 | 0 | 94 | 37 | 14 | 2 | 70 |
| Wisconsin | | | | 3 | 0 | 1 | 75 | 2 | 11 | 0 | 15 | 1 | 11 | 0 | 8 | Wisconsin | 4 | 7 | 1 | 33 | 13 | 3 | 0 | 81 | 23 | 33 | 1 | 40 |
| Wyoming | | | | | | | | 0 | 4 | 0 | 0 | 3 | 9 | 0 | 25 | Wyoming | 8 | 4 | 0 | 67 | 1 | 15 | 0 | 6 | 12 | 32 | 0 | 27 |
| Northeast | 46 | 37 | 55 | 34 | 43 | 5 | 41 | 17 | 103 | 1 | 14 | 14 | 94 | 0 | 13 | Northeast | 45 | 63 | 0 | 42 | 82 | 56 | 4 | 58 | 191 | 319 | 51 | 34 |
| South | 76 | 17 | 82 | 72 | 48 | 2 | 59 | 147 | 33 | 6 | 79 | 160 | 30 | 0 | 84 | South | 171 | 21 | 0 | 89 | 129 | 123 | 2 | 51 | 679 | 217 | 58 | 71 |
| Midwest | 17 | 0 | 100 | 41 | 8 | 3 | 79 | 29 | 94 | 5 | 23 | 22 | 116 | 4 | 15 | Midwest | 58 | 84 | 4 | 40 | 108 | 85 | 0 | 56 | 258 | 380 | 23 | 39 |
| West | | | | 3 | 0 | 0 | 100 | 12 | 47 | 3 | 19 | 47 | 74 | 4 | 38 | West | 95 | 48 | 0 | 66 | 94 | 114 | 0 | 45 | 251 | 283 | 7 | 46 |
| United States | 139 | 54 | 72 | 150 | 95 | 10 | 59 | 205 | 277 | 15 | 41 | 143 | 314 | 8 | 31 | United States | 369 | 216 | 4 | 63 | 412 | 378 | 7 | 52 | 1378 | 1199 | 140 | 51 |
| State | DR votes | F votes | % DR | D votes | AJ/W votes | Other votes | % D | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D | State | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D | D votes | R votes | Other votes | % D |
| | First Party System | First Party System | First Party System | Second Party System | Second Party System | Second Party System | Second Party System | Third Party System | Third Party System | Third Party System | Third Party System | Fourth Party System | Fourth Party System | Fourth Party System | Fourth Party System | | Fifth Party System | Fifth Party System | Fifth Party System | Fifth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Sixth Party System | Overall since 1828 | Overall since 1828 | Overall since 1828 | Overall since 1828 |

### States across party systems

S indicates that a state was split between the two major parties and did not elect either party more than 60 percent of the time. A * sign indicates that a state elected that party at least 80 percent of the time. No * sign indicates that the state elected that party between 60 and 80 percent of the time.
| | Party systems | Party systems | Party systems | Party systems | Party systems | Party systems | Party systems | Party systems | |
| State | 1789-1792 | 1st | 1824-1826 | 2nd | 3rd | 4th | 5th | 6th | 2000-2014 |
| Alabama | — | DR* | J | D* | D | D* | D* | S | R* |
| Alaska | — | — | — | — | — | — | D* | R* | R* |
| Arizona | — | — | — | — | — | D* | D | R* | R* |
| Arkansas | — | — | — | D* | D | D* | D* | D* | D |
| California | — | — | — | — | S | R* | R | D* | D* |
| Colorado | — | — | — | — | R* | S | S | S | D |
| Connecticut | PA* | F* | AJ | W | R* | R* | D | D* | D* |
| Delaware | PA | F* | J | W* | D* | R | R | D | D* |
| Florida | — | — | — | D* | D | D* | D* | D | D |
| Georgia | AA* | DR* | J | D | D* | D* | D* | S | R* |
| Hawaii | — | — | — | — | — | — | R | D* | D* |
| Idaho | — | — | — | — | R* | R* | S | R* | R* |
| Illinois | — | DR* | J | D* | R | R* | S | D | D* |
| Indiana | — | DR* | AJ | D | D | R | S | R | R |
| Iowa | — | — | — | D | R* | R* | R | S | R |
| Kansas | — | — | — | — | R* | R* | R* | R* | R* |
| Kentucky | AA* | DR* | J | W* | D* | D | D | R | R* |
| Louisiana | — | DR* | AJ | D | D | D* | D* | D* | R |
| Maine | — | DR* | J | D | R* | R* | R* | R | R* |
| Maryland | PA* | DR | J | W* | D* | S | D | D | D* |
| Massachusetts | PA* | F* | AJ | W* | R* | R | S | D* | D* |
| Michigan | — | — | — | D* | R* | R* | S | D* | D* |
| Minnesota | — | — | — | — | R* | R* | S | D | D* |
| Mississippi | — | DR* | J | D | D | D* | D* | R | R* |
| Missouri | — | DR* | S | D* | D | D | D* | R | R |
| Montana | — | — | — | — | R* | D* | D* | D | D |
| Nebraska | — | — | — | — | R* | R* | R* | D | S |
| Nevada | — | — | — | — | R* | S | D* | D | R |
| New Hampshire | AA | DR | J | D | R* | R* | R* | R | R |
| New Jersey | S | DR* | AJ | W | D | R | R | D* | D* |
| New Mexico | — | — | — | — | — | S | D* | S | D* |
| New York | AA | DR | J | D | R | R | S | D | D* |
| North Carolina | PA | DR* | J | D | D | D* | D* | R | R* |
| North Dakota | — | — | — | — | R | R* | R* | D | D* |
| Ohio | — | DR* | AJ | S | R | R* | S | S | R |
| Oklahoma | — | — | — | — | — | D* | D* | R* | R* |
| Oregon | — | — | — | — | R | R | R | R | D* |
| Pennsylvania | AA | DR* | S | D* | R* | R* | S | R* | R |
| Rhode Island | PA | S | AJ | W | R* | R* | D* | D | D* |
| South Carolina | PA | DR* | J | D | D | D* | D* | R | R* |
| South Dakota | — | — | — | — | R | R* | R* | S | R |
| Tennessee | — | DR* | J | S | D* | D* | D* | R | R* |
| Texas | — | — | — | D* | D* | D* | D* | R | R* |
| Utah | — | — | — | — | — | R | S | R* | R* |
| Vermont | AA* | DR | AJ | W* | R* | R* | R* | S | S |
| Virginia | AA* | DR* | J | S | D | D* | D* | S | D |
| Washington | — | — | — | — | R* | R* | D* | D* | D* |
| West Virginia | — | — | — | — | D | R | D* | D* | D* |
| Wisconsin | — | — | — | D | R* | R* | S | D* | D* |
| Wyoming | — | — | — | — | R* | R | D | R* | R* |
| State | 1789-1792 | 1st | 1824-1826 | 2nd | 3rd | 4th | 5th | 6th | 2000- 2014 |
| Region | 1789-1792 | 1st | 1824-1826 | 2nd | 3rd | 4th | 5th | 6th | 2000-2014 |
| Northeast | PA | S | AJ | S | R* | R* | S | S | D |
| South | S | DR* | J* | S | D | D* | D* | S | R |
| Midwest | — | DR* | AJ | D | R | R* | S | S | S |
| West | — | — | — | D* | R | S | D | S | S |
| United States | S | DR | S | S | S | R | D | S | S |