President –
Congress –
State Offices –
State Legislature
Data I Have:
President –
U.S. Senate –
U.S. House –
Governor –
Lieutenant Governor –
Secretary of State –
Attorney General –
Treasurer –
Comptroller –
State Senate –
State House
| Election | Class 2 Senator | Class 3 Senator | Representative(s) |
|---|
| 1818 (S) | Thomas (DR) | Edwards (DR) | McLean (DR) |
| 1818 | – | Edwards (DR) | Cook (DR) |
| 1820 | – | – | Cook (DR) |
| 1822 | Thomas (DR) | – | Cook (DR) |
| 1824 | – | Kane (DR) | Cook (Adams) |
| 1826 | – | – | Duncan (J) |
| 1830 | – | Kane (DR) | Duncan (J) |
| 1828 | McLean (J) | – | Duncan (J) |
| 1832 | – | – | 3 Jacksonian |
| 1834 | Robinson (J) | – | 3 Jacksonian |
| 1836 | – | Young (D) | 3 DEM |
| 1838 | – | – | 2 DEM, 1 W |
| 1840 | McRoberts (D) | – | 1 DEM, 1 ID, 1 W |
| 1842 | – | Breese (D) | 6 DEM, 1 W |
| 1845 | – | – | 6 DEM, 1 W |
| 1846 | Douglas (D) | – | 6 DEM, 1 W |
| 1848 | – | Shields (D) | 6 DEM, 1 W |
| 1850 | – | – | 6 DEM, 1 W |
| 1852 | Douglas (D) | – | 5 DEM, 4 W |
| 1854 | – | Trumbull (D) | 5 DEM, 2 GOP, 2 Opp. |
| 1856 | – | – | 5 DEM, 4 GOP |
| 1858 | Douglas (D) | – | 5 DEM, 4 GOP |
| 1860 | – | Trumbull (R) | 5 DEM, 4 GOP |
| 1862 | – | – | 9 DEM, 5 GOP |
| 1864 | Yates (R) | – | 11 GOP, 3 DEM |
| 1866 | – | Trumbull (R) | 11 GOP, 3 DEM |
| 1868 | – | – | 10 GOP, 4 DEM |
| 1870 | Logan (R) | – | 8 GOP, 6 DEM |
| 1872 | – | Trumbull (R) | 14 GOP, 5 DEM |
| 1874 | – | – | 10 DEM, 7 GOP, 2 IND |
| 1876 | Davis (I) | – | 12 GOP, 7 DEM |
| 1878 | – | Logan (R) | 12 GOP, 6 DEM, 1 GB |
| 1880 | – | – | 13 GOP, 6 DEM |
| 1882 | Cullom (R) | – | 11 GOP, 8 DEM, 1 ID |
| 1884 | – | Logan (R) | 10 DEM, 10 GOP |
| 1886 | – | – | 14 GOP, 6 DEM |
| 1888 | Cullom (R) | – | 13 GOP, 7 DEM |
| 1890 | – | Palmer (D) | 14 DEM, 6 GOP |
| 1892 | – | – | 11 DEM, 11 GOP |
| 1894 | Cullom (R) | – | 20 GOP, 2 DEM |
| 1896 | – | Mason (R) | 17 GOP, 5 DEM |
| 1898 | – | – | 14 GOP, 8 DEM |
| 1900 | Cullom (R) | – | 11 DEM, 11 GOP |
| 1902 | – | Hopkins (R) | 17 GOP, 8 DEM |
| 1904 | – | – | 24 GOP, 1 DEM |
| 1906 | Cullom (R) | – | 20 GOP, 5 DEM |
| 1908 | – | Lorimer (R) | 19 GOP, 6 DEM |
| 1910 | – | – | 14 GOP, 11 DEM |
| 1912 | Lewis (D) | – | 20 DEM, 5 GOP, 2 Prog. |
| 1914 | – | Sherman (R) | 16 GOP, 10 DEM, 1 Prog. |
| 1916 | – | – | 21 GOP, 6 DEM |
| 1918 | McCormick (R) | – | 22 GOP, 5 DEM |
| 1920 | – | McKinley (R) | 24 GOP, 3 DEM |
| 1922 | – | – | 20 GOP, 7 DEM |
| 1924 | Deneen (R) | – | 22 GOP, 5 DEM |
| 1926 | – | Glenn (R) | 20 GOP, 7 DEM |
| 1928 | – | – | 21 GOP, 6 DEM |
| 1930 | Lewis (D) | – | 15 GOP, 12 DEM |
| 1932 | – | Dieterich (D) | 19 DEM, 8 GOP |
| 1934 | – | – | 21 DEM, 6 GOP |
| 1936 | Lewis (D) | – | 21 DEM, 6 GOP |
| 1938 | – | Lucas (D) | 17 DEM, 10 GOP |
| 1940 | – | – | 16 GOP, 11 DEM |
| 1942 | Brooks (R) | – | 19 GOP, 7 DEM |
| 1944 | – | Lucas (D) | 15 GOP, 11 DEM |
| 1946 | – | – | 20 GOP, 6 DEM |
| 1948 | Douglas (D) | – | 14 GOP, 12 DEM |
| 1950 | – | Dirksen (R) | 18 GOP, 8 DEM |
| 1952 | – | – | 16 GOP, 9 DEM |
| 1954 | Douglas (D) | – | 13 GOP, 12 DEM |
| 1956 | – | Dirksen (R) | 14 GOP, 11 DEM |
| 1958 | – | – | 14 DEM, 11 GOP |
| 1960 | Douglas (D) | – | 14 DEM, 11 GOP |
| 1962 | – | Dirksen (R) | 12 DEM, 12 GOP |
| 1964 | – | – | 13 DEM, 11 GOP |
| 1966 | Percy (R) | – | 12 DEM, 12 GOP |
| 1968 | – | Smith (R) | 12 DEM, 12 GOP |
| 1970 | – | – | 12 DEM, 12 GOP |
| 1972 | Percy (R) | – | 14 DEM, 10 GOP |
| 1974 | – | Stevenson III (D) | 13 DEM, 11 GOP |
| 1976 | – | – | 12 DEM, 12 GOP |
| 1978 | Percy (R) | – | 13 GOP, 11 DEM |
| 1980 | – | Dixon (D) | 14 DEM, 10 GOP |
| 1982 | – | – | 12 DEM, 10 GOP |
| 1984 | Simon (D) | – | 13 DEM, 9 GOP |
| 1986 | – | Dixon (D) | 13 DEM, 9 GOP |
| 1988 | – | – | 14 DEM, 8 GOP |
| 1990 | Simon (D) | – | 15 DEM, 7 GOP |
| 1992 | – | Braun (D) | 12 DEM, 8 GOP |
| 1994 | – | – | 10 DEM, 10 GOP |
| 1996 | Durbin (D) | – | 10 DEM, 10 GOP |
| 1998 | – | Fitzgerald (R) | 10 DEM, 10 GOP |
| 2000 | – | – | 10 DEM, 10 GOP |
| 2002 | Durbin (D) | – | 10 GOP, 9 DEM |
| 2004 | – | Obama (D) | 10 DEM, 9 GOP |
| 2006 | – | – | 10 DEM, 9 GOP |
| 2008 | Durbin (D) | – | 12 DEM, 7 GOP |
| 2010 | – | Kirk (R) | 11 GOP, 8 DEM |
| 2012 | – | – | 12 DEM, 6 GOP |
| 2014 | Durbin (D) | – | 10 DEM, 8 GOP |
| 2016 | – | Duckworth (D) | 11 DEM, 7 GOP |
| 2018 | – | – | 13 DEM, 5 GOP |
| 2020 | Durbin (D) | – | 13 DEM, 5 GOP |
| 2022 | – | Duckworth (D) | 14 DEM, 3 GOP |
| Year | Gov | LG | SoS | AG | T | A/C |
|---|
| 1818 | I | I | DR | – | – | – |
| 1822 | I | I | DR | – | – | – |
| 1826 | ACR | ACR | DR | – | – | – |
| 1830 | D | D | D | – | – | – |
| 1834 | W | D | D | – | – | – |
| 1838 | D | D | D | – | – | – |
| 1842 | D | D | D | – | – | – |
| 1846 | D | D | D | – | – | – |
| 1848 | D | D | D | – | D | – |
| 1852 | D | D | D | – | D | – |
| 1856 | R | R | R | – | R | R |
| 1860 | R | R | R | – | R | R |
| 1864 | R | R | R | – | R | R |
| 1868 | R | R | R | R | R | R |
| 1872 | R | R | R | R | R | R |
| 1876 | R | R | R | R | R | R |
| 1880 | R | R | R | R | R | R |
| 1884 | R | R | R | R | R | R |
| 1888 | R | R | R | R | R | R |
| 1892 | D | D | D | D | D | D |
| 1896 | R | R | R | R | R | R |
| 1900 | R | R | R | R | R | R |
| 1904 | R | R | R | R | R | R |
| 1908 | R | R | R | R | R | R |
| 1912 | D | D | D | D | D | D |
| 1916 | R | R | R | R | R | R |
| 1920 | R | R | R | R | R | R |
| 1924 | R | R | R | R | R | R |
| 1928 | R | R | R | R | R | R |
| 1932 | D | D | D | D | D | D |
| 1936 | D | D | D | D | D | D |
| 1940 | R | R | D | R | R | R |
| 1944 | R | R | D | R | R | R |
| 1948 | D | D | D | D | D | D |
| 1952 | R | R | R | R | R | R |
| 1956 | R | R | R | R | R | R |
| 1960 | D | D | R | D | D | D |
| 1964 | D | D | D | D | R | D |
| 1968 | R | D | D | R | D | D |
| 1972 | D | D | D | R | D | R |
| 1976 | R | R | D | R | R | D |
| 1978 | R | R | D | R | D | D |
| 1982 | R | R | R | D | D | D |
| 1986 | R | R | R | D | D | D |
| 1990 | R | R | R | D | D | D |
| 1994 | R | R | R | R | R | R |
| 1998 | R | R | D | R | R | D |
| 2002 | D | R | D | D | R | D |
| 2006 | D | D | D | D | D | D |
| 2010 | D | D | D | D | R | R |
| 2014 | R | R | D | D | D | R |
| 2018 | D | D | D | D | D | D |
| 2022 | D | D | D | D | D | D |
| Year | State Senate | State House |
|---|
| 1836 | 22 DEM, 18 Whig | 57 DEM, 24 Whig, 10? |
| 1838 | 20 DEM, 20 Whig | 46 Whig, 40 DEM, 5 I |
| 1840 | 26 DEM, 14 Whig | 51 DEM, 40 Whig |
| 1842 | 30 DEM, 12 Whig | 84 DEM, 37 Whig |
| 1844 | 26 DEM, 15 Whig | 78 DEM, 40 Whig, 3? |
| 1846 | 29 DEM, 13 Whig | 76 DEM, 44 Whig, 3? |
| 1848 | 17 DEM, 7 Whig, 1? | 54 DEM, 21 Whig |
| 1850 | 17 DEM, 8 Whig | 46 DEM, 29 Whig |
| 1852 | 20 DEM, 5 Whig | 56 DEM, 18 Whig, 1 FS |
| 1854 | 14 DEM, 11 Whig | 41 Whig, 34 DEM |
| 1856 | 13 DEM, 12 GOP | 38 DEM, 31 GOP, 6 Am. |
| 1858 | 14 DEM, 11 GOP | 40 DEM, 35 GOP |
| 1860 | 13 GOP, 12 DEM | 41 GOP, 34 DEM |
| 1862 | 13 DEM, 12 GOP | 55 DEM, 30 GOP |
| 1864 | 14 GOP, 11 DEM | 51 GOP, 34 DEM |
| 1866 | 16 GOP, 9 DEM | 60 GOP, 25 DEM |
| 1868 | 18 GOP, 7 DEM | 58 GOP, 27 DEM |
| 1870 | 30 GOP, 20 DEM | 98 GOP, 76 DEM, 3 I |
| 1872 | 33 GOP, 18 DEM | 86 GOP, 67 DEM |
| 1874 | 24 GOP, 18 DEM, 9 I | 69 GOP, 42 DEM, 41 I |
| 1876 | 22 DEM, 21 GOP, 8 I | 79 GOP, 67 DEM, 7 I |
| 1878 | 26 GOP, 24 DEM, 1 I | 80 GOP, 60 DEM
10 GB, 3 S |
| 1880 | 32 GOP, 18 DEM, 1 S | 82 GOP, 71 DEM |
| 1882 | 31 GOP, 20 DEM | 77 GOP, 75 DEM, 1 I |
| 1884 | 26 GOP, 25 DEM | 76 GOP, 76 DEM, 1 I |
| 1886 | 32 GOP, 18 DEM
1 Labor | 79 GOP, 64 DEM
9 Labor, 1 Proh. |
| 1888 | 35 GOP, 15 DEM
1 Labor | 80 GOP, 72 DEM
1 Labor |
| 1890 | 27 GOP, 24 DEM | 77 DEM, 73 GOP, 3 FA |
| 1892 | 29 DEM, 22 GOP | 78 DEM, 75 GOP |
| 1894 | 33 GOP, 18 DEM | 92 GOP, 61 DEM |
| 1896 | 39 GOP, 11 DEM
1 Pop. | 89 GOP, 62 DEM, 2 Pop. |
| 1898 | 34 GOP, 16 DEM
1 Pop. | 81 GOP, 71 DEM, 1 Proh. |
| 1900 | 32 GOP, 19 DEM | 81 GOP, 72 DEM |
| 1902 | 36 GOP, 15 DEM | 88 GOP, 62 DEM
2 Pub. Own., 1 Proh. |
| 1904 | 41 GOP, 10 DEM | 91 GOP, 57 DEM
3 Proh., 2 S |
| 1906 | 44 GOP, 7 DEM | 90 GOP, 60 DEM, 3 Proh. |
| 1908 | 38 GOP, 13 DEM | 88 GOP, 65 DEM |
| 1910 | 34 GOP, 17 DEM | 82 GOP, 68 DEM
2 I, 1 Proh. |
| 1912 | 25 GOP, 24 DEM
2 Prog. | 71 DEM, 52 GOP
27 Prog., 3 S |
| 1914 | 25 DEM, 25 GOP
1 Prog. | 79 GOP, 70 DEM
2 S, 1 I, 1 Prog. |
| 1916 | 33 GOP, 18 DEM | 85 GOP, 67 DEM, 1 I |
| 1918 | 34 GOP, 17 DEM | 90 GOP, 63 DEM |
| 1920 | 43 GOP, 8 DEM | 95 GOP, 58 DEM |
| 1922 | 42 GOP, 9 DEM | 89 GOP, 63 DEM, 1 I |
| 1924 | 38 GOP, 13 DEM | 94 GOP, 59 DEM |
| 1926 | 41 GOP, 10 DEM | 93 GOP, 60 DEM |
| 1928 | 40 GOP, 11 DEM | 91 GOP, 62 DEM |
| 1930 | 33 GOP, 18 DEM | 81 GOP, 72 DEM |
| 1932 | 33 DEM, 18 GOP | 80 DEM, 73 GOP |
| 1934 | 35 DEM, 16 GOP | 84 DEM, 69 GOP |
| 1936 | 34 DEM, 17 GOP | 86 DEM, 67 GOP |
| 1938 | 30 DEM, 21 GOP | 80 GOP, 73 DEM |
| 1940 | 28 GOP, 23 DEM | 79 GOP, 74 DEM |
| 1942 | 28 GOP, 23 DEM | 84 GOP, 69 DEM |
| 1944 | 34 GOP, 17 DEM | 78 GOP, 75 DEM |
| 1946 | 37 GOP, 14 DEM | 87 GOP, 66 DEM |
| 1948 | 33 GOP, 18 DEM | 79 DEM, 74 GOP |
| 1950 | 31 GOP, 20 DEM | 84 GOP, 69 DEM |
| 1952 | 38 GOP, 13 DEM | 84 GOP, 69 DEM |
| 1954 | 32 GOP, 19 DEM | 79 GOP, 74 DEM |
| 1956 | 38 GOP, 20 DEM | 94 GOP, 83 DEM |
| 1958 | 34 GOP, 24 DEM | 92 DEM, 85 GOP |
| 1960 | 31 GOP, 27 DEM | 89 GOP, 88 DEM |
| 1962 | 35 GOP, 23 DEM | 90 GOP, 87 DEM |
| 1964 | 33 GOP, 25 DEM | 118 DEM, 59 GOP |
| 1966 | 38 GOP, 20 DEM | 99 GOP, 78 DEM |
| 1968 | – | 94 GOP, 83 DEM |
| 1970 | 29 DEM, 29 GOP | 90 GOP, 87 DEM |
| 1972 | 30 GOP, 29 DEM | 92 GOP, 84 DEM, 1 I |
| 1974 | 34 DEM, 25 GOP | 98 DEM, 76 GOP, 3 I |
| 1976 | 34 DEM, 25 GOP | 93 DEM, 83 GOP, 1 I |
| 1978 | 32 DEM, 27 GOP | 88 DEM, 88 GOP, 1 I |
| 1980 | 30 DEM, 29 GOP | 89 GOP, 86 DEM, 2 I |
| 1982 | 33 DEM, 26 GOP | 70 DEM, 48 GOP |
| 1984 | 31 DEM, 28 GOP | 67 DEM, 51 GOP |
| 1986 | 31 DEM, 28 GOP | 67 DEM, 51 GOP |
| 1988 | 31 DEM, 28 GOP | 68 DEM, 50 GOP |
| 1990 | 31 DEM, 28 GOP | 72 DEM, 46 GOP |
| 1992 | 32 GOP, 27 DEM | 67 DEM, 51 GOP |
| 1994 | 33 GOP, 26 DEM | 64 GOP, 54 DEM |
| 1996 | 31 GOP, 28 DEM | 60 DEM, 58 GOP |
| 1998 | 32 GOP, 27 DEM | 62 DEM, 56 GOP |
| 2000 | 32 GOP, 27 DEM | 62 DEM, 56 GOP |
| 2002 | 32 DEM, 27 GOP | 66 DEM, 52 GOP |
| 2004 | 31 DEM, 27 GOP, 1 I | 65 DEM, 53 GOP |
| 2006 | 37 DEM, 22 GOP | 66 DEM, 52 GOP |
| 2008 | 37 DEM, 22 GOP | 70 DEM, 48 GOP |
| 2010 | 35 DEM, 24 GOP | 64 DEM, 54 GOP |
| 2012 | 40 DEM, 19 GOP | 71 DEM, 47 GOP |
| 2014 | 39 DEM, 20 GOP | 71 DEM, 47 GOP |
| 2016 | 37 DEM, 22 GOP | 67 DEM, 51 GOP |
| 2018 | 40 DEM, 19 GOP | 72 DEM, 46 GOP |
| 2020 | 41 DEM, 18 GOP | 73 DEM, 45 GOP |
| 2022 | 40 DEM, 19 GOP | 78 DEM, 40 GOP |
| 1820 (by county) |
1824 (by county) |
1828 (by county) |
1832 (by county) |
| 1836 (by county) |
1840 (by county) |
1844 (by county) |
1848 (by county) |
| 1852 (by county) |
1856 (by county) |
1860 (by county) |
1864 (by county) |
| 1868 (by county) |
1872 (by county) |
1876 (by county) |
1880 (by county) |
| 1884 (by county) |
1888 (by county) |
1892 (by county) |
1896 (by county) |
| 1900 (by county) |
1904 (by county) |
1908 (by county) |
1912 (by county) |
| 1916 (by county) |
1920 (by county) |
1924 (by county) |
1928 (by county) |
| 1932 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1946 (by county) |
1948 (by county) |
1952 (by county) |
1956 (by county) |
| 1960 (by county) |
1964 (by county) |
1968 (by county) |
1972 (by county) |
| 1976 (by county) |
1980 (by county) |
1984 (by county) |
1988 (by county) |
| 1992 (by county) |
1996 (by county) |
2000 (by county) |
2004 (by county) |
| 2008 (by county) |
2012 (by county) |
2016 (by county) |
2020 (by county) |
| 1914 (by county) |
1918 (by county) |
1920 (by county) |
1924 (by county) |
| 1926 (by county) |
1928 (by county) |
1930 (by county) |
1932 (by county) |
| 1936 (by county) |
1938 (by county) |
1940 (by county) |
1942 (by county) |
| 1944 (by county) |
1948 (by county) |
1950 (by county) |
1954 (by county) |
| 1956 (by county) |
1960 (by county) |
1962 (by county) |
1966 (by county) |
| 1968 (by county) |
1970 (by county) |
1972 (by county) |
1974 (by county) |
| 1978 (by county) |
1980 (by county) |
1984 (by county) |
1986 (by county) |
| 1990 (by county) |
1992 (by county) |
1996 (by county) |
1998 (by county) |
| 2002 (by county) |
2004 (by county) |
2008 (by county) |
2010 (by county) |
| 2014 (by county) |
2016 (by county) |
2020 (by county) |
2022 (by county) |
| 1820 |
1822 |
1824 |
1826 |
1828 |
1830 |
1832 |
1834 |
1836 |
1840 |
| 1842 |
1844 |
1846 |
1848 |
1850 |
1852 |
1854 |
1856 |
1858 |
1860 |
| 1862 |
1864 |
1866 |
1868 |
1870 |
1872 |
1874 |
1876 |
1878 |
1880 |
| 1882 |
1884 |
1886 |
1888 |
1890 |
1892 |
1894 |
1896 |
1898 |
1900 |
| 1902 |
1904 |
1906 |
1908 |
1910 |
1912 |
1914 |
1916 |
1918 |
1920 |
| 1922 |
1924 |
1926 |
1928 |
1930 |
1932 |
1934 |
1936 |
1938 |
1940 |
| 1942 |
1944 |
1946 |
1948 |
1950 |
1952 |
1954 |
1956 |
1958 |
1960 |
| 1962 |
1964 |
1966 |
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 |
| 2022 |
| 1818 (by county) |
1822 (by county) |
1826 (by county) |
1830 (by county) |
| 1834 (by county) |
1838 (by county) |
1842 (by county) |
1846 (by county) |
| 1848 (by county) |
1852 (by county) |
1856 (by county) |
1860 (by county) |
| 1864 (by county) |
1868 (by county) |
1872 (by county) |
1876 (by county) |
| 1880 (by county) |
1884 (by county) |
1888 (by county) |
1892 (by county) |
| 1896 (by county) |
1900 (by county) |
1904 (by county) |
1908 (by county) |
| 1912 (by county) |
1916 (by county) |
1920 (by county) |
1924 (by county) |
| 1928 (by county) |
1932 (by county) |
1936 (by county) |
1940 (by county) |
| 1944 (by county) |
1948 (by county) |
1952 (by county) |
1956 (by county) |
| 1960 (by county) |
1964 (by county) |
1968 (by county) |
1972 (by county) |
| 1976 (by county) |
1978 (by county) |
1982 (by county) |
1986 (by county) |
| 1990 (by county) |
1994 (by county) |
1998 (by county) |
2002 (by county) |
| 2006 (by county) |
2010 (by county) |
2014 (by county) |
2018 (by county) |
| 2022 (by county) |
| 1920 (by county) |
1924 (by county) |
1928 (by county) |
1930 (by county) |
| 1932 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1948 (by county) |
1952 (by county) |
1956 (by county) |
1960 (by county) |
| 1964 (by county) |
1968 (by county) |
1972 (by county) |
1976 (by county) |
| 1978 (by county) |
1982 (by county) |
1986 (by county) |
1990 (by county) |
| 1994 (by county) |
1998 (by county) |
2002 (by county) |
2006 (by county) |
| 2010 (by county) |
2014 (by county) |
2018 (by county) |
2022 (by county) |
| 1920 (by county) |
1924 (by county) |
1928 (by county) |
1930 (by county) |
| 1932 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1948 (by county) |
1952 (by county) |
1956 (by county) |
1960 (by county) |
| 1964 (by county) |
1968 (by county) |
1972 (by county) |
1976 (by county) |
| 1978 (by county) |
1982 (by county) |
1986 (by county) |
1990 (by county) |
| 1994 (by county) |
1998 (by county) |
2002 (by county) |
2006 (by county) |
| 2010 (by county) |
2014 (by county) |
2018 (by county) |
2022 (by county) |
| 1920 (by county) |
1924 (by county) |
1928 (by county) |
1930 (by county) |
| 1932 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1948 (by county) |
1952 (by county) |
1956 (by county) |
1960 (by county) |
| 1964 (by county) |
1968 (by county) |
1972 (by county) |
1976 (by county) |
| 1978 (by county) |
1982 (by county) |
1986 (by county) |
1990 (by county) |
| 1994 (by county) |
1998 (by county) |
2002 (by county) |
2006 (by county) |
| 2010 (by county) |
2014 (by county) |
2018 (by county) |
2022 (by county) |
| 1906 (by county) |
1920 (by county) |
1922 (by county) |
1924 (by county) |
| 1926 (by county) |
1928 (by county) |
1930 (by county) |
1932 (by county) |
| 1934 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1948 (by county) |
1952 (by county) |
1956 (by county) |
1960 (by county) |
| 1966 (by county) |
1970 (by county) |
1974 (by county) |
1976 (by county) |
| 1978 (by county) |
1982 (by county) |
1986 (by county) |
1990 (by county) |
| 1994 (by county) |
1998 (by county) |
2002 (by county) |
2006 (by county) |
| 2010 (by county) |
2014 (by county) |
2018 (by county) |
2022 (by county) |
| 1920 (by county) |
1924 (by county) |
1928 (by county) |
1930 (by county) |
| 1932 (by county) |
1936 (by county) |
1940 (by county) |
1944 (by county) |
| 1948 (by county) |
1952 (by county) |
1956 (by county) |
1960 (by county) |
| 1964 (by county) |
1968 (by county) |
1972 (by county) |
1976 (by county) |
| 1978 (by county) |
1982 (by county) |
1986 (by county) |
1990 (by county) |
| 1994 (by county) |
1998 (by county) |
2002 (by county) |
2006 (by county) |
| 2010 (by county) |
2014 (by county) |
2016 (by county) |
2018 (by county) |
| 2022 (by county) |
| 1998 |
2000 |
2002 |
2004 |
2006 |
2008 |
2010 |
2012 |
2014 |
2016 |
| 2018 |
2020 |
2022 |
| 1998 |
2000 |
2002 |
2004 |
2006 |
2008 |
2010 |
2012 |
2014 |
2016 |
| 2018 | 2020 | 2022 |
Sources
“General Election Results – Illinois”. United States Election Atlas.
Party Affiliations in the State Legislatures: A Year by Year Summary, 1796-2006 [Michael J. Dubin]
