St. Clair County, Illinois: null
Illinois · Presidential Elections 1892–2024
D+7.8
2024 Margin
R+0.8%
2020→2024 Swing
D since 1976
Voting Streak
Classification
257K
Population
St. Clair County, Illinois voted D+7.8 for Kamala Harris in 2024, with Harris receiving 63,433 votes (52.88%). This represented a R+0.8% swing toward Republicans compared to 2020. The county has voted Democratic in every presidential election since 1976.
Electoral Behavior
Volatility
3.2
Elasticity
Moderate
Trend
-0.6/yr
Quick Stats
2024 ResultD+7.8
2020→2024 SwingR+0.8%
Voting StreakD since 1976
Elections on Record34
Demographics
Population257,400
Median Age
39.4(US: 38.4)
College (BA+)
43.9%(US: 47.9%)
Median Income
$68,915(US: $78k)
White (non-Hisp)
59.5%(US: 57.5%)
Hispanic
5.0%(US: 18.6%)
Black
29.8%(US: 12.3%)
Asian
1.6%(US: 5.7%)
Homeownership
67.8%(US: 64.2%)
Poverty Rate
13.6%(US: 12.4%)
Veterans
11.8%(US: 6.4%)
Presidential Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 52.9%(63,433) | 45.0%(54,021) | D+7.8 | -0.8 |
| 2020 | 52.8%(68,325) | 44.2%(57,150) | D+8.6 | +3.0 |
| 2016 | 50.0%(60,756) | 44.4%(53,857) | D+5.7 | -8.6 |
| 2012 | 56.1%(67,285) | 41.8%(50,125) | D+14.3 | -8.1 |
| 2008 | 60.6%(76,160) | 38.1%(47,958) | D+22.4 | +11.7 |
| 2004 | 55.1%(62,410) | 44.4%(50,203) | D+10.8 | -2.8 |
| 2000 | 55.7%(55,961) | 42.1%(42,299) | D+13.6 | -7.9 |
| 1996 | 56.6%(53,405) | 35.0%(33,066) | D+21.5 | -2.3 |
| 1992 | 53.6%(57,625) | 29.7%(31,951) | D+23.9 | +9.5 |
| 1988 | 57.0%(55,465) | 42.6%(41,439) | D+14.4 | +13.2 |
Senate Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 54.0%(47,856) | 44.4%(39,335) | D+9.6 | +1.0 |
| 2020 | 52.6%(66,801) | 44.0%(55,898) | D+8.6 | -10.3 |
| 2016 | 57.3%(68,709) | 38.3%(45,998) | D+18.9 | +13.8 |
| 2014 | 50.7%(38,813) | 45.5%(34,877) | D+5.1 | +4.7 |
| 2010 | 47.9%(38,512) | 47.5%(38,185) | D+0.4 | -33.2 |
| 2008 | 64.5%(77,920) | 30.9%(37,319) | D+33.6 | -3.5 |
| 2004 | 67.1%(74,447) | 30.0%(33,288) | D+37.1 | +14.2 |
| 2002 | 60.7%(39,848) | 37.7%(24,772) | D+22.9 | +33.2 |
| 1998 | 43.6%(29,939) | 53.8%(36,957) | R+10.2 | -32.0 |
| 1996 | 59.4%(55,878) | 37.6%(35,370) | D+21.8 | +0.4 |
Governor Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 50.4%(45,071) | 46.0%(41,154) | D+4.4 | -7.9 |
| 2018 | 53.4%(52,603) | 41.2%(40,524) | D+12.3 | +20.1 |
| 2014 | 43.9%(33,474) | 51.7%(39,438) | R+7.8 | -9.5 |
| 2010 | 48.4%(39,152) | 46.7%(37,772) | D+1.7 | -14.4 |
| 2006 | 55.6%(38,441) | 39.5%(27,318) | D+16.1 | -0.2 |
| 2002 | 57.3%(38,164) | 41.0%(27,324) | D+16.3 | +6.1 |
| 1998 | 54.6%(37,497) | 44.4%(30,486) | D+10.2 | +33.8 |
| 1994 | 37.3%(23,644) | 60.8%(38,601) | R+23.6 | -38.2 |
| 1990 | 56.8%(36,453) | 42.2%(27,079) | D+14.6 | +48.2 |
| 1986 | 15.0%(8,946) | 48.6%(28,938) | R+33.6 | -44.3 |
Primary Election History
| Year | Party | Winner | Runner-up | Nominee? |
|---|---|---|---|---|
| 2024 | GOP | Donald Trump(81.0%) | Nikki Haley(14.3%) | ✓ |
| 2020 | Dem | Joe Biden(68.2%) | Bernie Sanders(25.6%) | ✓ |
| 2016 | Dem | Hillary Clinton(60.0%) | Bernie Sanders(39.2%) | ✓ |
| 2016 | GOP | Donald Trump(40.9%) | Ted Cruz(37.0%) | ✓ |
| 2008 | Dem | Barack Obama(67.4%) | Hillary Clinton(29.6%) | ✓ |
✓ = County picked eventual party nominee