Illinois 1st Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +59.7% |
| 2012 | +55.9% |
| 2016 | +48.0% |
| 2020 | +42.4% |
| 2024 | +31.8% |
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 | 1 | D | 65.8%208,398 | 34.1%108,064 | 316,507 |
| 2022 | 1 | D | 67.0%159,142 | 33.0%78,258 | 237,425 |
| 2020 | 1 | D | 73.8%239,943 | 26.2%85,027 | 325,123 |
| 2018 | 1 | D | 73.5%189,560 | 19.8%50,960 | 257,885 |
| 2016 | 1 | D | 74.1%234,037 | 25.9%81,817 | 315,862 |
| 2014 | 1 | D | 73.1%162,268 | 26.9%59,749 | 222,017 |
| 2012 | 1 | D | 73.8%236,854 | 26.2%83,989 | 320,844 |
| 2010 | 1 | D | 80.4%148,170 | 15.9%29,253 | 184,386 |
| 2008 | 1 | D | 85.9%233,036 | 14.1%38,361 | 271,397 |
| 2006 | 1 | D | 84.1%146,623 | 15.9%27,804 | 174,427 |
| 2004 | 1 | D | 84.9%212,109 | 15.1%37,840 | 249,949 |
| 2002 | 1 | D | 81.2%149,068 | 16.2%29,776 | 183,656 |
| 2000 | 1 | D | 87.8%172,271 | 12.2%23,915 | 196,186 |
| 1998 | 1 | D | 87.1%151,890 | 10.6%18,429 | 174,365 |
| 1996 | 1 | D | 85.7%174,005 | 12.6%25,659 | 203,113 |
| 1994 | 1 | D | 75.7%112,474 | 24.3%36,038 | 148,512 |
| 1992 | 1 | D | 82.8%209,258 | 17.2%43,453 | 252,711 |
| 1990 | 1 | D | 93.8%100,890 | 6.2%6,708 | 107,598 |
| 1988 | 1 | D | 96.0%164,125 | 4.0%6,753 | 170,878 |
| 1986 | 1 | D | 96.4%122,376 | 3.6%4,572 | 126,948 |
| 1984 | 1 | D | 95.6%177,438 | 0.0%0 | 185,534 |
| 1982 | 1 | D | 97.3%172,641 | 2.7%4,820 | 177,462 |
| 1980 | 1 | D | 95.5%119,562 | 4.5%5,660 | 125,223 |
| 1978 | 1 | D | 58.5%47,581 | 41.3%33,540 | 81,279 |
| 1976 | 1 | D | 92.3%126,632 | 7.4%10,147 | 137,193 |
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 |
Anchored in Chicago's South Side, IL-01 delivered a 39-point Democratic presidential margin in 2024, reflecting a dense, majority-Black urban electorate that has made this district among the most reliably partisan in the Midwest.
Across the recorded series it reached a Democratic high of 59.7 points in 2008. Between 2020 and 2024 the district moved 10.6 points toward the Republican candidate; the 2024 margin was 31.8 points.
A population of 753,624, a 38% non-Hispanic-white share, and a median household income of $71,465 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 12 and Congressional District 2.
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 1st Congressional District. Akashic. https://akashic.app/cd/1701/. Accessed May 20, 2026. License: CC BY 4.0.