Illinois

Illinois became a state in December 1818. Largely Republican from the Civil War through the 1920s, the state voted Democratic throughout the Great Depression and World War II, then returned to the Republicans for eight out of 10 elections from 1952 through 1988. Illinois has voted Democratic in the last seven elections. In 2016, Hillary Clinton easily beat Donald Trump 56% to 39%.

With 20 electoral votes, the state is the largest electoral prize in the Midwest, although nearby Ohio, with 18, gets considerably more visibility in the general election thanks to the fact that it is much more of a battleground state. Like many other northern industrial states, Illinois has lost electoral influence as its population has not grown with the rest of the country. This has cost it at least one electoral vote after each of the last four Censuses. It is currently on track to lose two more after the 2020 presidential election.

ELECTORAL VOTES

20

2020 ELECTION

Safe Biden
2020 Illinois Polls

Recent Presidential Elections

2016
55.8% 38.8%
2012
57.6% 40.7%
2008
61.9% 36.8%
2004
54.8% 44.5%
2000
54.6% 42.6%

Presidential Voting History

State voted with the overall winning candidate

1972
R
1976
R
1980
R
1984
R
1988
R
1992
D
1996
D
2000
D
2004
D
2008
D
2012
D
2016
D

Electoral College Votes

Democratic-Republican
Democratic
Republican

Colored bars represent electoral votes by party. Hover to see names. 2020 electoral votes shown in dark green until after the election.

U.S. Senate Voting History

  Class 1982198419861988199019921994199619982000200220042006200820102012201420162018
1
2
D
D
D
D
D
D
3
D
D
R
D
R
D

Data: MIT Election Data and Science Lab / Harvard Dataverse. These are general election results for the years listed.

There are three classes of Senators; one is up for election every second year. Each state has one Senator in two of the three classes.

U.S. House Voting History

District1982198419861988199019921994199619982000200220042006200820102012201420162018
1
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
2
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
3
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
4
R
R
R
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
5
D
D
D
D
D
D
R
D
D
D
D
D
D
D
D
D
D
D
D
6
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
D
7
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
8
D
D
D
D
D
R
R
R
R
R
R
D
D
D
R
D
D
D
D
9
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
10
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
D
R
D
D
11
D
D
D
D
D
D
R
R
R
R
R
R
R
D
R
D
D
D
D
12
R
R
R
R
R
D
D
D
D
D
D
D
D
D
D
D
R
R
R
13
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
14
R
R
R
R
R
R
R
R
R
R
R
R
R
D
R
R
R
R
D
15
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
16
R
R
R
R
D
R
R
R
R
R
R
R
R
R
R
R
R
R
R
17
D
D
D
D
D
D
D
D
D
D
D
D
D
D
R
D
D
D
D
18
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
19
R
D
D
D
D
D
D
D
D
D
R
R
R
R
R
20
D
D
D
D
D
D
D
R
R
R
21
D
D
D
D
D
22
D
D
D
D
D

Data: The Princeton Gerrymandering Project. These are general election results for the years listed.

Vertical lines before 1992, 2002 and 2012 show Census-related redistricting breakpoints. Geographic borders associated with district numbers may have changed.

Governor Voting History

1976
R
1978
R
1982
R
1986
R
1990
R
1994
R
1998
R
2002
D
2006
D
2010
D
2014
R
2018
D

Data: Wikipedia. These are general election results for the years listed.