| 2007 | 100 House
(50 Republican, 49 Democrat, 1 Constitution) | 50 Senate
(26 Democrat, 24 Republican) |
| 2005 | 100 House
(50 Democrat, 50 Republican) | 50 Senate
(27 Democrat, 23 Republican) |
| 2003 | 100 House
(53 Republican, 47 Democrat) | 50 Senate
(29 Republican, 21 Democrat) |
| 2001 | 100 House
(58 Republican, 42 Democrat) | 50 Senate
(31 Republican, 19 Democrat) |
| 1999 | 100 House
(59 Republican, 41 Democrat) | 50 Senate
(32 Republican, 18 Democrat) |
| 1997 | 100 House
(65 Republican, 35 Democrat) | 50 Senate
(34 Republican, 16 Democrat) |
| 1995 | 100 House
(67 Republican, 33 Democrat) | 50 Senate
(31 Republican, 19 Democrat) |
| 1993 | 100 House
(53 Republican, 47 Democrat) | 50 Senate
(30 Democrat, 20 Republican) |
| 1991 | 100 House
(61 Democrat, 39 Republican) | 50 Senate
(29 Democrat, 21 Republican) |
| 1989 | 100 House
(52 Democrat, 48 Republican) | 50 Senate
(27 Republican, 23 Democrat) |
| 1987 | 100 House
(51 Republican, 49 Democrat) | 50 Senate
(25 Democrat, 25 Republican) |
| 1985 | 100 House
(51 Democrat, 49 Republican) | 50 Senate
(28 Democrat, 22 Republican) |
| 1983 | 100 House
(55 Democrat, 45 Republican) | 50 Senate
(26 Republican, 24 Democrat) |
| 1981 | 100 House
(57 Republican, 43 Democrat) | 50 Senate
(28 Republican, 22 Democrat) |
| 1979 | 99 House
(54 Democrat, 45 Republican) | 49 Senate
(25 Republican, 24 Democrat) |
| 1977 | 100 House
(57 Democrat, 43 Republican) | 50 Senate
(25 Democrat, 25 Republican) |
| 1975 | 100 House
(67 Democrat, 33 Republican) | 50 Senate
(30 Democrat, 20 Republican) |
| 1973 | 100 House
(54 Democrat, 46 Republican) | 50 Senate
(27 Democrat, 23 Republican) |
| 1971 | 104 House
(55 Republican, 49 Democrat) | 55 Senate
(30 Democrat, 25 Republican) |
| 1969 | 104 House
(58 Republican, 46 Democrat) | 55 Senate
(30 Democrat, 25 Republican) |
| 1967 | 104 House
(64 Republican, 40 Democrat) | 55 Senate
(30 Democrat, 25 Republican) |
1965 | 94 House
(56 Democrat, 38 Republican) | 56 Senate
(32 Democrat, 24 Republican) | | 1963 | 94 House
(57 Republican, 37 Democrat) | 56 Senate
(35 Democrat, 21 Republican) |
1961 | 94 House
(54 Republican, 40 Democrat) | 56 Senate
(38 Democrat, 17 Republican, 1 Independent) | | 1959 | 94 House
(61 Democrat, 31 Republican, 2 Independent) | 56 Senate
(38 Democrat, 17 Republican, 1 Independent) |
1957 | 94 House
(59 Democrat, 35 Republican) | 56 Senate
(31 Democrat, 25 Republican) | | 1955 | 94 House
(49 Democrat, 45 Republican) | 56 Senate
(33 Republican, 23 Democrat) |
1953 | 94 House
(62 Republican, 32 Democrat) | 56 Senate
(36 Republican, 20 Democrat) | | 1951 | 90 House
(49 Republican, 41 Democrat) | 56 Senate
(28 Republican, 26 Democrat, 2 Independent) |
1949 | 90 House
(54 Democrat, 36 Republican) | 56 Senate
(31 Republican, 23 Democrat, 2 Independent) | | 1947 | 90 House
(58 Republican, 31 Democrat, 1 Independent) | 56 Senate
(41 Republican, 15 Democrat) |
1945 | 90 House
(53 Republican, 37 Democrat) | 56 Senate
(39 Republican, 17 Democrat) | | 1943 | 90 House
(51 Republican, 39 Democrat) | 56 Senate
(37 Republican, 19 Democrat) |
1941 | 102 House
(55 Democrat, 47 Republican) | 56 Senate
(35 Republican, 21 Democrat) | | 1939 | 102 House
(58 Democrat, 44 Republican) | 56 Senate
(31 Democrat, 25 Republican) |
1937 | 102 House
(81 Democrat, 21 Republican) | 56 Senate
(29 Democrat, 27 Republican) | | 1935 | 102 House
(69 Democrat, 33 Republican) | 56 Senate
(28 Democrat, 27 Republican, 1 Independent) |
1933 | 101 House
(72 Democrat, 29 Republican) | 56 Senate
(33 Republican, 22 Democrat, 1 Independent) | | 1931 | 102 House
(59 Republican, 43 Democrat) | 56 Senate
(41 Republican, 15 Democrat) |
1929 | 102 House
(69 Republican, 33 Democrat) | 56 Senate
(39 Republican, 16 Democrat, 1 Farmer-Labor) | | 1927 | 102 House
(61 Republican, 39 Democrat, 2 Farmer-Labor) | 56 Senate
(40 Republican, 15 Democrat, 1 Farmer-Labor) |
1925 | 102 House
(66 Republican, 34 Democrat, 2 Farmer-Labor) | 56 Senate
(39 Republican, 16 Democrat, 1 Farmer-Labor) | | 1923 | 100 House
(56 Republican, 44 Democrat) | 54 Senate
(38 Republican, 16 Democrat) |
1921 | 108 House
(98 Republican, 9 Democrat, 1 Independent) | 54 Senate
(41 Republican, 13 Democrat) | | 1919 | 98 House
(65 Republican, 33 Democrat) | 43 Senate
(31 Republican, 12 Democrat) |
1917 | 95 House
(49 Democrat, 46 Republican) | 41 Senate
(28 Republican, 13 Democrat) | | 1915 | 95 House
(55 Democrat, 36 Republican, 3 Silver, 1 Independent) | 41 Senate
(19 Republican, 16 Democrat, 5 Progressive, 1 Independent) |
1913 | 86 House
(49 Democrat, 20 Republican, 16 Progressive, 1 Silver) | 32 Senate
(17 Democrat, 13 Republican, 2 Progressive) | | 1911 | 74 House
(42 Democrat, 32 Republican) | 28 Senate
(16 Republican, 12 Democrat) |
1909 | 71 House
(38 Democrat, 33 Republican) | 27 Senate
(17 Republican, 10 Democrat) | | 1907 | 73 House
(57 Republican, 16 Democrat) | 27 Senate
(18 Republican, 9 Democrat) |
1905 | 72 House
(38 Republican, 24 Democrat, 7 Labor, 3 Anti-Trust) | 26 Senate
(16 Republican, 10 Democrat) | | 1903 | 72 House
(47 Republican, 11 Labor, 8 Democrat, 6 Anti-Trust) | 26 Senate
(14 Democrat, 12 Republican) |
1901 | 70 House
(28 Democrat, 23 Republican, 8 Labor, 6 Populist, 5 Independent) | 24 Senate
(14 Democrat, 9 Republican, 1 Populist) | | 1899 | 70 House
(57 Democrat, 9 Republican, 4 Silver) | 24 Senate
(17 Democrat, 6 Republican, 1 Populist) |
1897 | 68 House
(42 Democrat, 18 People's, 8 Republican) | 23 Senate
(12 Republican, 8 Democrat, 3 People's) | | 1895 | 61 House
(44 Republican, 14 Populist, 3 Democrat) | 21 Senate
(13 Republican, 5 Democrat, 3 Populist) |
1893 | 55 House
(26 Democrat, 26 Republican, 3 Populist) | 16 Senate
(9 Democrat, 7 Republican) | | 1891 | 55 House
(28 Republican, 27 Democrat) | 16 Senate
(10 Democrat, 6 Republican) |
1889 | 45 House
(24 Republican, 21 Democrat) | 16 Senate
(8 Democrat, 8 Republican) |
