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Illinois

Illinois congressional districts: U.S. House election history

Each cell is one election, coloured by the winning party. District numbers are reused after redistricting, so a district in 2024 does not cover the same ground as the same number in 1980.

Current representatives

Every district, every election

District'24'22'20'18'16'14'12'10'08'06'04'02'00'98'80'78'76
1 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
3 D D D D D D D D D D D D D D D D D
4 D D D D D D D D D D D D D D R R R
5 D D D D D D D D D D D D D D D D D
6 D D D D R R R R R R R R R R R R R
7 D D D D D D D D D D D D D D D D D
8 D D D D D D D R D D D R R R D D D
9 D D D D D D D D D D D D D D D D D
10 D D D D D R D R R R R R R R R D D
11 D D D D D D D R D R R R R R D D D
12 R R R R R R D D D D D D D D R R R
13 D D R R R R R R R R R R R R R R R
14 D D D D R R R R D R R R R R R R R
15 R R R R R R R R R R R R R R R R R
16 R R R R R R R R R R R R R R R R R
17 D D D D D D D R D D D D D D R R R
18 R R R R R R R R R R R R R R R
19 R R R R R D D R R R
20 R R R R R
21 R R R
22 R R D
23 D D D
24 D D D

Darker cells were won by bigger margins. Blank: no race in the data that year (the source has no House results for 1984–1996).