Illinois 13th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +22.8% |
| 2012 | +14.7% |
| 2016 | +8.3% |
| 2020 | +11.2% |
| 2024 | +10.3% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 13 | D | 58.1%191,339 | 41.9%137,917 | 329,500 |
| 2022 | 13 | D | 56.6%141,788 | 43.4%108,646 | 250,450 |
| 2020 | 13 | R | 45.5%151,648 | 54.5%181,373 | 333,021 |
| 2018 | 13 | R | 49.6%134,458 | 50.4%136,516 | 270,981 |
| 2016 | 13 | R | 40.3%126,811 | 59.7%187,583 | 314,394 |
| 2014 | 13 | R | 41.3%86,935 | 58.7%123,337 | 210,272 |
| 2012 | 13 | R | 46.2%136,032 | 46.5%137,034 | 294,385 |
| 2010 | 13 | R | 36.2%86,281 | 63.8%152,132 | 238,413 |
| 2008 | 13 | R | 43.6%147,430 | 53.6%180,888 | 337,771 |
| 2006 | 13 | R | 41.7%85,507 | 58.3%119,720 | 205,234 |
| 2004 | 13 | R | 35.0%107,836 | 65.0%200,472 | 308,312 |
| 2002 | 13 | R | 29.7%59,069 | 70.3%139,546 | 198,615 |
| 2000 | 13 | R | 33.8%98,768 | 66.2%193,250 | 292,018 |
| 1998 | 13 | R | 39.0%77,878 | 61.0%121,889 | 199,767 |
| 1996 | 13 | R | 40.1%94,693 | 59.9%141,651 | 236,344 |
| 1994 | 13 | R | 26.9%45,709 | 73.1%124,312 | 170,021 |
| 1992 | 13 | R | 31.6%82,985 | 68.4%179,257 | 262,255 |
| 1990 | 13 | R | 34.2%60,305 | 65.8%116,048 | 176,353 |
| 1988 | 13 | R | 29.8%74,424 | 70.2%174,992 | 249,416 |
| 1986 | 13 | R | 26.6%38,874 | 73.4%107,227 | 146,101 |
| 1984 | 13 | R | 33.0%77,623 | 67.0%157,603 | 235,234 |
| 1982 | 13 | R | 30.2%49,105 | 69.8%113,423 | 162,530 |
| 1980 | 13 | R | 28.3%52,000 | 71.7%131,448 | 183,458 |
| 1978 | 13 | R | 38.8%40,675 | 61.2%64,060 | 104,738 |
| 1976 | 13 | R | 30.3%49,777 | 66.8%109,726 | 164,266 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | D | 56.8%2,329,136 | 41.5%1,701,055 | 4,098,896 |
| 2020 | D | 54.9%3,278,930 | 38.9%2,319,870 | 5,968,901 |
| 2016 | D | 54.9%3,012,940 | 39.8%2,184,692 | 5,491,239 |
| 2014 | D | 53.5%1,929,637 | 42.7%1,538,522 | 3,603,475 |
| 2010 | R | 46.4%1,719,478 | 48.0%1,778,698 | 3,703,370 |
| 2008 | D | 67.8%3,615,844 | 28.5%1,520,621 | 5,329,883 |
| 2004 | D | 70.0%3,597,456 | 27.1%1,390,690 | 5,138,563 |
| 2002 | D | 60.3%2,103,766 | 38.0%1,325,703 | 3,486,851 |
| 1998 | R | 47.4%1,610,496 | 50.3%1,709,041 | 3,394,521 |
| 1996 | D | 56.1%2,384,028 | 40.7%1,728,824 | 4,246,494 |
| 1992 | D | 53.3%2,631,229 | 43.1%2,126,833 | 4,939,530 |
| 1990 | D | 65.1%2,115,377 | 34.9%1,135,628 | 3,251,005 |
| 1986 | D | 65.1%2,033,783 | 33.7%1,053,734 | 3,122,883 |
| 1984 | D | 50.1%2,397,165 | 48.2%2,308,039 | 4,787,335 |
| 1980 | D | 56.0%2,565,302 | 42.5%1,946,296 | 4,579,933 |
| 1978 | R | 45.5%1,448,187 | 53.3%1,698,711 | 3,184,605 |
Illinois' 13th covers a wide swath of central and southern downstate territory, blending mid-sized university communities with rural counties in a mix that has produced single-digit presidential margins in recent cycles.
Across the recorded series it reached a Democratic high of 22.8 points in 2008. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 10.3 points.
A population of 753,644, a 66% non-Hispanic-white share, and a median household income of $63,106 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 17 and Congressional District 6.
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Illinois 13th Congressional District. Akashic. https://akashic.app/cd/1713/. Accessed May 20, 2026. License: CC BY 4.0.