Warren County, IL
IL · Presidential Elections 1892–2024
Warren County, IL (Illinois) voted R+25.1 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 4,579 votes (61.49%) to 2,711 (36.4%) for Harris.
This represents a R+5.1% swing toward Republicans compared to 2020. Warren County is classified as a solid Republican county. Warren County has voted Republican in every presidential election since 2016. The county has a population of approximately 16,447.
Quick Stats
Demographics
Community Profile
Religious Composition
Source: Religion Census 2020Ancestry Groups
Source: Census ACSTop reported ancestry groups (compared to national average).
Age Distribution
Employment by Industry
Census ACSPresidential Elections
Presidential Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 36.4%(2,711) | 61.5%(4,579) | R+25.1 | R+5.1 |
| 2020 | 39.0%(3,090) | 59.0%(4,676) | R+20.0 | R+3.5 |
| 2016 | 38.3%(2,987) | 54.8%(4,275) | R+16.5 | R+21.9 |
| 2012 | 51.7%(4,044) | 46.3%(3,618) | D+5.4 | R+2.6 |
| 2008 | 53.4%(4,286) | 45.3%(3,637) | D+8.1 | D+14.4 |
| 2004 | 46.6%(3,938) | 52.9%(4,474) | R+6.3 | R+1.4 |
| 2000 | 46.2%(3,524) | 51.1%(3,899) | R+4.9 | R+12.2 |
| 1996 | 48.3%(3,500) | 41.0%(2,974) | D+7.3 | D+3.3 |
| 1992 | 43.4%(3,661) | 39.4%(3,325) | D+4.0 | D+15.7 |
| 1988 | 43.8%(3,617) | 55.5%(4,584) | R+11.7 | D+15.8 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Warren County, IL • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 38.8%(2,243) | 61.2%(3,545) | R+22.5 | R+3.2 |
| 2020 | 39.1%(3,049) | 58.4%(4,552) | R+19.3 | R+4.3 |
| 2016 | 39.2%(3,025) | 54.2%(4,184) | R+15.0 | R+7.0 |
| 2014 | 44.3%(2,420) | 52.3%(2,857) | R+8.0 | D+21.9 |
| 2010 | 31.8%(1,883) | 61.7%(3,654) | R+29.9 | R+57.0 |
| 2008 | 62.0%(4,803) | 34.9%(2,701) | D+27.1 | R+5.7 |
| 2004 | 65.4%(5,402) | 32.5%(2,685) | D+32.9 | D+27.5 |
| 2002 | 51.8%(3,115) | 46.4%(2,792) | D+5.4 | D+34.0 |
| 1998 | 34.5%(2,064) | 63.1%(3,773) | R+28.6 | R+26.5 |
| 1996 | 47.3%(3,368) | 49.4%(3,519) | R+2.1 | R+0.6 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 33.8%(2,024) | 62.9%(3,764) | R+29.1 | R+12.7 |
| 2018 | 37.4%(2,268) | 53.7%(3,261) | R+16.4 | D+8.5 |
| 2014 | 35.2%(1,923) | 60.1%(3,281) | R+24.9 | D+2.4 |
| 2010 | 32.7%(1,965) | 59.9%(3,602) | R+27.2 | R+15.0 |
| 2006 | 40.7%(2,405) | 52.9%(3,127) | R+12.2 | D+8.7 |
| 2002 | 38.3%(2,332) | 59.1%(3,604) | R+20.9 | D+8.9 |
| 1998 | 34.7%(2,098) | 64.5%(3,895) | R+29.7 | D+26.5 |
| 1994 | 21.2%(1,203) | 77.4%(4,400) | R+56.2 | R+31.7 |
| 1990 | 37.4%(2,329) | 62.0%(3,860) | R+24.6 | D+26.8 |
| 1986 | 6.2%(414) | 57.6%(3,829) | R+51.4 | R+25.6 |
Source: Official state election returns via MIT Election Data + Science Lab