Union County, IL
IL · Presidential Elections 1892–2024
Union County, IL (Illinois) voted R+43.2 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 5,837 votes (70.96%) to 2,285 (27.78%) for Harris.
This represents a R+3.0% swing toward Republicans compared to 2020. Union County is classified as a deep Republican county. Union County has voted Republican in every presidential election since 2000. The county has a population of approximately 16,997.
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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 | 27.8%(2,285) | 71.0%(5,837) | R+43.2 | R+3.0 |
| 2020 | 29.0%(2,579) | 69.2%(6,161) | R+40.2 | R+0.9 |
| 2016 | 27.9%(2,402) | 67.2%(5,790) | R+39.3 | R+17.4 |
| 2012 | 37.7%(3,137) | 59.6%(4,957) | R+21.9 | R+10.0 |
| 2008 | 43.0%(3,918) | 54.9%(5,003) | R+11.9 | D+5.6 |
| 2004 | 41.0%(3,735) | 58.5%(5,333) | R+17.5 | R+12.7 |
| 2000 | 46.0%(3,982) | 50.8%(4,397) | R+4.8 | R+18.1 |
| 1996 | 51.3%(4,252) | 38.0%(3,147) | D+13.3 | R+5.1 |
| 1992 | 51.5%(4,681) | 33.1%(3,003) | D+18.5 | D+19.0 |
| 1988 | 49.5%(4,197) | 50.0%(4,244) | R+0.6 | D+10.0 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Union County, IL • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 34.5%(2,381) | 65.5%(4,514) | R+30.9 | R+4.1 |
| 2020 | 35.3%(3,102) | 62.1%(5,465) | R+26.9 | R+22.3 |
| 2016 | 45.6%(3,843) | 50.2%(4,231) | R+4.6 | D+1.9 |
| 2014 | 44.9%(2,761) | 51.4%(3,161) | R+6.5 | D+13.8 |
| 2010 | 36.3%(2,347) | 56.6%(3,658) | R+20.3 | R+44.2 |
| 2008 | 59.0%(5,236) | 35.1%(3,116) | D+23.9 | D+7.5 |
| 2004 | 54.9%(4,761) | 38.5%(3,338) | D+16.4 | R+5.6 |
| 2002 | 60.2%(3,989) | 38.2%(2,531) | D+22.0 | D+34.2 |
| 1998 | 42.9%(3,083) | 55.1%(3,962) | R+12.2 | R+23.2 |
| 1996 | 54.3%(4,400) | 43.4%(3,513) | D+10.9 | R+2.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 25.9%(1,839) | 70.3%(4,988) | R+44.4 | R+32.1 |
| 2018 | 38.3%(2,875) | 50.6%(3,794) | R+12.3 | D+20.5 |
| 2014 | 30.7%(1,887) | 63.5%(3,900) | R+32.8 | R+13.8 |
| 2010 | 36.2%(2,411) | 55.3%(3,676) | R+19.0 | R+24.0 |
| 2006 | 43.8%(2,961) | 38.8%(2,624) | D+5.0 | D+3.9 |
| 2002 | 49.2%(3,335) | 48.2%(3,264) | D+1.0 | R+47.5 |
| 1998 | 74.0%(5,527) | 25.4%(1,898) | D+48.6 | D+94.7 |
| 1994 | 25.9%(1,729) | 71.9%(4,810) | R+46.1 | R+55.4 |
| 1990 | 54.4%(4,262) | 45.0%(3,530) | D+9.3 | D+54.8 |
| 1986 | 6.9%(526) | 52.4%(3,973) | R+45.5 | R+43.3 |
Source: Official state election returns via MIT Election Data + Science Lab