Illinois 17th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +21.6% |
| 2012 | +17.5% |
| 2016 | +6.6% |
| 2020 | +7.8% |
| 2024 | +4.7% |
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 | 17 | D | 54.4%170,261 | 45.6%142,567 | 312,828 |
| 2022 | 17 | D | 52.0%121,186 | 48.0%111,931 | 233,123 |
| 2020 | 17 | D | 52.0%156,011 | 48.0%143,863 | 299,895 |
| 2018 | 17 | D | 62.1%142,659 | 37.9%87,090 | 229,749 |
| 2016 | 17 | D | 60.3%173,125 | 39.7%113,943 | 287,068 |
| 2014 | 17 | D | 55.5%110,560 | 44.5%88,785 | 199,361 |
| 2012 | 17 | D | 53.3%153,519 | 46.7%134,623 | 288,161 |
| 2010 | 17 | R | 43.0%85,454 | 52.6%104,583 | 198,898 |
| 2008 | 17 | D | 99.8%220,961 | 0.0%0 | 221,478 |
| 2006 | 17 | D | 57.2%115,025 | 42.8%86,161 | 201,186 |
| 2004 | 17 | D | 60.7%172,320 | 39.3%111,680 | 284,000 |
| 2002 | 17 | D | 62.4%127,093 | 37.6%76,519 | 203,612 |
| 2000 | 17 | D | 54.9%132,494 | 45.1%108,853 | 241,347 |
| 1998 | 17 | D | 51.6%100,128 | 48.4%94,072 | 194,200 |
| 1996 | 17 | D | 51.9%120,008 | 47.3%109,240 | 231,173 |
| 1994 | 17 | D | 54.5%95,312 | 45.5%79,471 | 174,783 |
| 1992 | 17 | D | 60.1%156,233 | 39.9%103,719 | 259,952 |
| 1990 | 17 | D | 66.5%102,062 | 33.5%51,380 | 153,442 |
| 1988 | 17 | D | 64.9%132,130 | 35.1%71,560 | 203,690 |
| 1986 | 17 | D | 55.6%85,442 | 44.4%68,101 | 153,543 |
| 1984 | 17 | D | 56.7%128,273 | 43.3%98,069 | 226,345 |
| 1982 | 17 | D | 52.8%94,483 | 47.2%84,347 | 178,887 |
| 1980 | 17 | R | 34.2%65,305 | 65.8%125,806 | 191,111 |
| 1978 | 17 | R | 29.4%39,260 | 70.6%94,375 | 133,635 |
| 1976 | 17 | R | 41.8%81,220 | 58.2%113,145 | 194,365 |
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 by Rockford, the Quad Cities, and a corridor of rural counties, Illinois-17 has moved steadily toward Republican presidential candidates over the past decade, flipping from reliably Democratic to a 5.5-point Republican margin in 2024.
Across the recorded series it reached a Democratic high of 21.6 points in 2008. Between 2020 and 2024 the district moved 3.1 points toward the Republican candidate; the 2024 margin was 4.7 points.
A population of 753,925, a 70% non-Hispanic-white share, and a median household income of $59,364 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 13 and Congressional District 8.
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 17th Congressional District. Akashic. https://akashic.app/cd/1717/. Accessed May 20, 2026. License: CC BY 4.0.