United States Presidential election7 Nov 2028in 728 days Senate D 97% House D 58% Calendar Track record Research
PollingForecast.com United States
Closest results
United States · Election results history · 1986 Senate · Illinois
Election 1986 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

1986 US Senate election in Illinois

Alan J. Dixon (Democrat) beat Judy Koehler (Republican) in Illinois in 1986, 65.1% to 33.7%, a margin of 31.4 points and 980,049 votes.

The Democratic hold continued from 1980, when Alan J. Dixon also won.

Democrats led in 90 of the 102 counties as they stood then and Republicans in 12. The largest, Cook, cast 1,376,824 votes and went to the Democrat by 47.3 points. The closest was Logan, where 42 votes separated the two parties.

United States
Results
2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929 1928 1927 1926 1925 1924 1923 1922 1921 1920 1919 1918 1917 1916 1915 1914 1913 1912 1911 1910 1909 1908 1907 1906 1905 1904 1903 1902 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880 1879 1878 1877 1876 1875 1874 1873 1872 1871 1870 1869 1868 1867 1866 1865
If only voted How this works
If the polls miss like

Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Senate

CandidatePartyVotesShare
Alan J. Dixon won Democratic 2,033,783 65.1%
Judy Koehler Republican 1,053,734 33.7%
All other candidates 35,366 1.1%
Total3,122,883

Every county

CountyDemocratRepublicanOthersTotalMargin
Cook 1,005,048 73.0% 353,414 25.7% 18,362 1,376,824 D+47.3
Du Page 88,366 47.6% 95,117 51.2% 2,320 185,803 R+3.6
Lake 54,609 54.9% 43,598 43.8% 1,324 99,531 D+11.1
Will 48,323 61.5% 29,488 37.5% 746 78,557 D+24.0
Sangamon 43,274 60.2% 28,157 39.1% 494 71,925 D+21.0
Kane 34,224 52.1% 30,677 46.7% 824 65,725 D+5.4
Winnebago 37,162 58.6% 25,591 40.4% 655 63,408 D+18.2
Madison 41,459 69.1% 17,907 29.9% 596 59,962 D+39.3
St. Clair 44,674 74.8% 14,568 24.4% 493 59,735 D+50.4
Peoria 24,792 51.3% 23,161 48.0% 346 48,299 D+3.4
Rock Island 30,220 68.1% 13,687 30.8% 471 44,378 D+37.3
McHenry 18,593 44.4% 22,650 54.1% 626 41,869 R+9.7
Champaign 24,523 62.9% 13,905 35.7% 574 39,002 D+27.2
Macon 25,737 70.3% 10,684 29.2% 188 36,609 D+41.1
La Salle 19,692 57.5% 14,273 41.7% 265 34,230 D+15.8
Tazewell 14,358 44.3% 17,859 55.1% 203 32,420 R+10.8
McLean 14,818 52.6% 13,105 46.6% 228 28,151 D+6.1
Vermilion 17,529 64.2% 9,610 35.2% 166 27,305 D+29.0
Kankakee 15,502 61.7% 9,208 36.7% 403 25,113 D+25.1
Adams 14,327 63.3% 8,218 36.3% 81 22,626 D+27.0
Williamson 14,210 68.3% 6,418 30.9% 169 20,797 D+37.5
De Kalb 11,226 56.7% 8,301 41.9% 277 19,804 D+14.8
Knox 11,863 62.3% 7,044 37.0% 124 19,031 D+25.3
Macoupin 12,565 71.3% 4,907 27.8% 151 17,623 D+43.5
Henry 10,324 59.8% 6,798 39.4% 142 17,264 D+20.4
Whiteside 9,732 57.3% 7,085 41.7% 154 16,971 D+15.6
Franklin 12,172 74.2% 4,096 25.0% 145 16,413 D+49.2
Jackson 10,700 68.6% 4,616 29.6% 286 15,602 D+39.0
Coles 9,444 63.9% 5,208 35.3% 117 14,769 D+28.7
Stephenson 8,564 58.3% 5,974 40.6% 164 14,702 D+17.6
Marion 9,343 66.6% 4,562 32.5% 115 14,020 D+34.1
Bureau 7,185 54.1% 6,039 45.4% 64 13,288 D+8.6
Christian 9,404 72.1% 3,573 27.4% 58 13,035 D+44.7
Morgan 7,742 60.9% 4,910 38.6% 61 12,713 D+22.3
Fulton 7,769 62.0% 4,702 37.5% 52 12,523 D+24.5
Randolph 8,914 71.4% 3,487 27.9% 76 12,477 D+43.5
Clinton 7,440 64.8% 3,943 34.4% 91 11,474 D+30.5
Livingston 5,112 45.0% 6,171 54.3% 76 11,359 R+9.3
Montgomery 7,744 68.3% 3,503 30.9% 93 11,340 D+37.4
Jefferson 7,536 67.3% 3,579 31.9% 89 11,204 D+35.3
Ogle 5,151 46.1% 5,913 52.9% 119 11,183 R+6.8
Grundy 7,024 62.9% 4,075 36.5% 75 11,174 D+26.4
Iroquois 6,263 57.2% 4,596 42.0% 81 10,940 D+15.2
Logan 5,341 49.4% 5,383 49.8% 78 10,802 R+0.4
Effingham 6,369 61.5% 3,904 37.7% 76 10,349 D+23.8
Saline 7,197 69.6% 2,944 28.5% 201 10,342 D+41.1
Lee 5,205 51.2% 4,900 48.2% 67 10,172 D+3.0
McDonough 5,599 56.4% 4,229 42.6% 91 9,919 D+13.8
Kendall 4,543 45.8% 5,273 53.2% 98 9,914 R+7.4
Woodford 3,284 33.1% 6,568 66.3% 61 9,913 R+33.1
Fayette 5,358 60.8% 3,397 38.5% 63 8,818 D+22.2
Perry 5,952 67.9% 2,732 31.2% 80 8,764 D+36.7
Shelby 5,687 67.5% 2,689 31.9% 48 8,424 D+35.6
Boone 4,166 49.9% 4,102 49.1% 81 8,349 D+0.8
Edgar 4,872 59.7% 3,215 39.4% 77 8,164 D+20.3
Monroe 4,720 62.6% 2,778 36.8% 41 7,539 D+25.8
Pike 5,070 67.7% 2,377 31.8% 38 7,485 D+36.0
Wayne 4,025 54.3% 3,296 44.4% 98 7,419 D+9.8
Jo Daviess 4,425 59.9% 2,852 38.6% 105 7,382 D+21.3
Union 4,942 67.0% 2,390 32.4% 41 7,373 D+34.6
White 4,980 67.8% 2,283 31.1% 83 7,346 D+36.7
Hancock 4,218 57.7% 3,043 41.6% 48 7,309 D+16.1
Crawford 4,591 64.0% 2,513 35.1% 64 7,168 D+29.0
Jersey 4,821 68.6% 2,136 30.4% 66 7,023 D+38.2
Douglas 4,404 64.6% 2,364 34.7% 49 6,817 D+29.9
Mercer 4,312 64.7% 2,292 34.4% 56 6,660 D+30.3
Warren 3,555 53.6% 3,029 45.6% 54 6,638 D+7.9
Clark 3,996 61.6% 2,445 37.7% 47 6,488 D+23.9
Richland 4,008 63.1% 2,291 36.1% 55 6,354 D+27.0
Lawrence 3,875 66.1% 1,943 33.1% 45 5,863 D+33.0
Washington 3,098 54.5% 2,538 44.6% 50 5,686 D+9.8
Massac 3,674 64.8% 1,942 34.3% 50 5,666 D+30.6
Carroll 3,354 59.3% 2,256 39.9% 48 5,658 D+19.4
Mason 3,187 57.1% 2,365 42.3% 33 5,585 D+14.7
Bond 3,380 61.0% 2,106 38.0% 55 5,541 D+23.0
Greene 3,731 70.4% 1,529 28.8% 40 5,300 D+41.5
Cass 3,525 66.6% 1,713 32.4% 53 5,291 D+34.2
Piatt 3,309 62.7% 1,927 36.5% 40 5,276 D+26.2
Clay 3,351 64.2% 1,828 35.0% 43 5,222 D+29.2
Marshall 1,709 34.5% 3,234 65.2% 17 4,960 R+30.7
Menard 2,544 53.5% 2,180 45.8% 35 4,759 D+7.6
Ford 2,230 47.1% 2,460 52.0% 42 4,732 R+4.9
Jasper 3,032 64.9% 1,599 34.2% 44 4,675 D+30.7
De Witt 2,576 55.8% 2,007 43.5% 30 4,613 D+12.3
Moultrie 2,976 66.6% 1,457 32.6% 34 4,467 D+34.0
Wabash 2,846 63.9% 1,586 35.6% 24 4,456 D+28.3
Cumberland 2,730 63.2% 1,549 35.9% 41 4,320 D+27.3
Hamilton 2,751 65.2% 1,429 33.9% 37 4,217 D+31.3
Alexander 3,067 73.9% 1,037 25.0% 45 4,149 D+48.9
Johnson 2,184 53.3% 1,876 45.7% 41 4,101 D+7.5
Schuyler 2,242 59.5% 1,497 39.7% 31 3,770 D+19.8
Gallatin 2,453 70.3% 821 23.5% 217 3,491 D+46.7
Henderson 2,002 59.0% 1,340 39.5% 52 3,394 D+19.5
Edwards 1,776 56.2% 1,375 43.5% 11 3,162 D+12.7
Pulaski 1,815 62.2% 1,081 37.0% 24 2,920 D+25.1
Putnam 1,330 46.6% 1,498 52.5% 24 2,852 R+5.9
Calhoun 1,865 68.5% 835 30.7% 24 2,724 D+37.8
Scott 1,586 62.3% 946 37.1% 15 2,547 D+25.1
Hardin 1,562 62.0% 915 36.3% 41 2,518 D+25.7
Brown 1,540 64.0% 853 35.5% 12 2,405 D+28.6
Stark 995 41.9% 1,361 57.3% 21 2,377 R+15.4
Pope 1,191 57.3% 849 40.9% 37 2,077 D+16.5

Counties as they stood in 1986; some have since been split, merged or renamed. Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Illinois Senate elections we hold

YearWinnerMargin
2022 Tammy Duckworth (D) D+15.3
2020 Richard J Durbin (D) D+16.0
2016 Tammy Duckworth (D) D+15.1
2014 Dick Durbin (D) D+10.9
2010 Mark Kirk (R) R+1.6
2008 Richard J. Durbin (D) D+39.3
2004 Barack Obama (D) D+42.9
2002 Richard J. Durbin (D) D+22.3
1998 Peter G. Fitzgerald (R) R+2.9
1996 Richard J. Durbin (D) D+15.4
1992 Carol Moseley-Braun (D) D+10.2
1990 Paul Simon (D) D+30.1
1986 Alan J. Dixon (D) D+31.4
1984 Paul Simon (D) D+1.9
1980 Alan J. Dixon (D) D+13.5
1978 Charles H. Percy (R) R+7.9
1974 Adlai Stevenson III (D) D+24.9
1972 Charles H. Percy (R) R+24.9
1968 Everett Dirksen (R) R+6.4
1966 Charles H. Percy (R) R+11.0
1962 Everett Dirksen (R) R+5.7
1960 Paul H. Douglas (D) D+9.4
1956 Everett Dirksen (R) R+8.4
1954 Paul H. Douglas (D) D+7.1
1950 Everett Dirksen (R) R+8.1
1948 Paul H. Douglas (D) D+10.5
1944 Scott W. Lucas (D) D+5.6
1942 C. Wayland Brooks (R) R+6.8
1938 Scott W. Lucas (D) D+3.0
1936 James H. Lewis (D) D+15.8
1932 William H. Dieterich (D) D+6.2
1930 James H. Lewis (D) D+33.3
1926 Frank L. Smith (R) R+3.7
1924 Charles S. Deneen (R) R+28.2
1920 William B. McKinley (R) R+40.0
1918 Medill McCormick (R) R+5.6
1914 Lawrence Y. Sherman (R) R+1.7