Stephenson County, IL
IL · Presidential Elections 1892–2024
Stephenson County, IL (Illinois) voted R+19.4 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 12,347 votes (58.81%) to 8,278 (39.43%) for Harris.
This represents a R+3.7% swing toward Republicans compared to 2020. Stephenson County is classified as a solid Republican county. Stephenson County has voted Republican in every presidential election since 2012. The county has a population of approximately 43,768.
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 | 39.4%(8,278) | 58.8%(12,347) | R+19.4 | R+3.7 |
| 2020 | 41.0%(9,055) | 56.6%(12,521) | R+15.7 | D+0.6 |
| 2016 | 38.2%(7,768) | 54.5%(11,083) | R+16.3 | R+14.7 |
| 2012 | 48.1%(10,165) | 49.8%(10,512) | R+1.6 | R+8.3 |
| 2008 | 52.5%(11,349) | 45.9%(9,909) | D+6.7 | D+22.1 |
| 2004 | 41.8%(8,913) | 57.3%(12,212) | R+15.5 | R+1.8 |
| 2000 | 41.6%(8,062) | 55.3%(10,715) | R+13.7 | R+4.2 |
| 1996 | 39.4%(7,145) | 48.9%(8,871) | R+9.5 | R+4.4 |
| 1992 | 36.5%(7,899) | 41.6%(9,005) | R+5.1 | D+15.4 |
| 1988 | 39.4%(7,460) | 59.9%(11,342) | R+20.5 | D+15.1 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Stephenson County, IL • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 42.9%(7,043) | 57.1%(9,393) | R+14.3 | R+0.9 |
| 2020 | 41.5%(9,043) | 54.8%(11,954) | R+13.4 | D+6.8 |
| 2016 | 36.9%(7,411) | 57.0%(11,453) | R+20.1 | R+3.9 |
| 2014 | 39.5%(5,728) | 55.8%(8,080) | R+16.2 | D+14.9 |
| 2010 | 28.7%(4,174) | 59.9%(8,711) | R+31.2 | R+52.3 |
| 2008 | 58.6%(12,033) | 37.5%(7,703) | D+21.1 | D+0.0 |
| 2004 | 59.1%(12,244) | 38.0%(7,882) | D+21.1 | D+22.9 |
| 2002 | 48.1%(6,656) | 50.0%(6,914) | R+1.9 | D+38.8 |
| 1998 | 28.2%(3,730) | 68.9%(9,117) | R+40.7 | R+21.9 |
| 1996 | 38.2%(6,826) | 56.9%(10,183) | R+18.8 | R+8.7 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 37.2%(6,303) | 58.5%(9,897) | R+21.2 | R+3.9 |
| 2018 | 35.6%(5,760) | 52.9%(8,560) | R+17.3 | D+15.3 |
| 2014 | 31.1%(4,558) | 63.8%(9,338) | R+32.6 | D+2.0 |
| 2010 | 28.6%(4,209) | 63.3%(9,293) | R+34.6 | R+30.0 |
| 2006 | 38.8%(5,163) | 43.4%(5,773) | R+4.6 | D+14.6 |
| 2002 | 38.3%(5,358) | 57.5%(8,047) | R+19.2 | D+7.8 |
| 1998 | 35.6%(4,697) | 62.6%(8,251) | R+27.0 | D+29.1 |
| 1994 | 20.5%(2,773) | 76.5%(10,372) | R+56.0 | R+34.9 |
| 1990 | 39.0%(5,616) | 60.1%(8,654) | R+21.1 | D+32.2 |
| 1986 | 5.2%(776) | 58.5%(8,662) | R+53.3 | R+36.2 |
Source: Official state election returns via MIT Election Data + Science Lab