Rock Island County, Illinois: Declining Industrial Metro
Illinois · Presidential Elections 1892–2024
D+9.6
2024 Margin
R+2.5%
2020→2024 Swing
D since 1984
Voting Streak
🏭 Rust Belt
Classification
145K
Population
Rock Island County, Illinois voted D+9.6 for Kamala Harris in 2024, with Harris receiving 34,126 votes (53.78%). This represented a R+2.5% swing toward Republicans compared to 2020. The county has voted Democratic in every presidential election since 1984.
Electoral Behavior
🏭
Declining Industrial MetroView all
Rust Belt urban centers that voted for Obama but have shifted dramatically toward Republicans. Former manufacturing hubs experiencing economic decline and Democratic erosion.
Volatility
4.1
Elasticity
Moderate
Trend
-0.4/yr
Quick Stats
2024 ResultD+9.6
2020→2024 SwingR+2.5%
Voting StreakD since 1984
Elections on Record34
Demographics
Population144,672
Median Age
40.2(US: 38.4)
College (BA+)
33.1%(US: 47.9%)
Median Income
$64,435(US: $78k)
White (non-Hisp)
68.5%(US: 57.5%)
Hispanic
14.0%(US: 18.6%)
Black
11.5%(US: 12.3%)
Asian
2.6%(US: 5.7%)
Homeownership
68.6%(US: 64.2%)
Poverty Rate
15.4%(US: 12.4%)
Veterans
7.2%(US: 6.4%)
Presidential Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 53.8%(34,126) | 44.2%(28,061) | D+9.6 | -2.5 |
| 2020 | 54.8%(36,691) | 42.7%(28,603) | D+12.1 | +3.8 |
| 2016 | 50.5%(32,298) | 42.2%(26,998) | D+8.3 | -13.5 |
| 2012 | 60.0%(39,157) | 38.2%(24,934) | D+21.8 | -2.8 |
| 2008 | 61.7%(42,210) | 37.1%(25,364) | D+24.6 | +10.0 |
| 2004 | 57.0%(39,880) | 42.4%(29,663) | D+14.6 | -5.0 |
| 2000 | 58.3%(37,957) | 38.7%(25,194) | D+19.6 | -3.7 |
| 1996 | 57.1%(34,822) | 33.8%(20,626) | D+23.3 | +3.6 |
| 1992 | 51.9%(37,412) | 32.2%(23,212) | D+19.7 | +0.9 |
| 1988 | 59.2%(40,174) | 40.4%(27,412) | D+18.8 | +12.1 |
Senate Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 55.5%(26,638) | 42.8%(20,548) | D+12.7 | -0.6 |
| 2020 | 55.2%(36,493) | 41.9%(27,705) | D+13.3 | +3.4 |
| 2016 | 52.4%(32,952) | 42.5%(26,767) | D+9.8 | -0.7 |
| 2014 | 53.6%(24,143) | 43.1%(19,406) | D+10.5 | +16.6 |
| 2010 | 44.3%(20,445) | 50.3%(23,249) | R+6.1 | -42.4 |
| 2008 | 66.5%(44,418) | 30.2%(20,172) | D+36.3 | -7.8 |
| 2004 | 71.1%(49,096) | 27.0%(18,620) | D+44.1 | +16.3 |
| 2002 | 63.1%(26,998) | 35.3%(15,096) | D+27.8 | +41.4 |
| 1998 | 41.5%(19,615) | 55.1%(25,998) | R+13.5 | -32.1 |
| 1996 | 57.7%(34,604) | 39.0%(23,431) | D+18.6 | +8.1 |
Governor Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 52.9%(25,663) | 43.5%(21,130) | D+9.3 | +0.8 |
| 2018 | 50.8%(25,774) | 42.3%(21,434) | D+8.6 | +13.4 |
| 2014 | 45.6%(20,495) | 50.5%(22,680) | R+4.9 | +0.3 |
| 2010 | 44.3%(20,514) | 49.4%(22,904) | R+5.2 | -24.7 |
| 2006 | 56.7%(26,201) | 37.1%(17,168) | D+19.5 | +8.3 |
| 2002 | 54.3%(23,193) | 43.1%(18,382) | D+11.3 | +16.9 |
| 1998 | 46.5%(22,051) | 52.1%(24,733) | R+5.7 | +24.6 |
| 1994 | 34.1%(14,238) | 64.4%(26,901) | R+30.3 | -37.4 |
| 1990 | 53.0%(23,572) | 45.9%(20,413) | D+7.1 | +37.1 |
| 1986 | 10.6%(4,700) | 40.5%(18,023) | R+29.9 | -40.7 |
Primary Election History
| Year | Party | Winner | Runner-up | Nominee? |
|---|---|---|---|---|
| 2024 | GOP | Donald Trump(78.9%) | Nikki Haley(16.2%) | ✓ |
| 2020 | Dem | Joe Biden(62.3%) | Bernie Sanders(31.3%) | ✓ |
| 2016 | Dem | Hillary Clinton(51.6%) | Bernie Sanders(47.1%) | ✓ |
| 2016 | GOP | Donald Trump(36.1%) | Ted Cruz(35.6%) | ✓ |
| 2008 | Dem | Barack Obama(61.3%) | Hillary Clinton(34.4%) | ✓ |
✓ = County picked eventual party nominee