DeKalb County, IL
IL · Presidential Elections 1892–2024
DeKalb County, IL (Illinois) voted D+2.0 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 23,648 votes (49.89%) to 22,716 (47.92%) for Trump.
This represents a R+3.7% swing toward Republicans compared to 2020. DeKalb County is classified as a competitive Democratic county. DeKalb County has voted Democratic in every presidential election since 2008. The county has a population of approximately 100,703.
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 | 49.9%(23,648) | 47.9%(22,716) | D+2.0 | R+3.7 |
| 2020 | 51.4%(24,643) | 45.6%(21,905) | D+5.7 | D+2.6 |
| 2016 | 46.9%(20,466) | 43.8%(19,091) | D+3.2 | R+2.4 |
| 2012 | 51.4%(21,207) | 45.9%(18,934) | D+5.5 | R+11.3 |
| 2008 | 57.5%(25,784) | 40.8%(18,266) | D+16.8 | D+21.3 |
| 2004 | 47.3%(19,263) | 51.7%(21,095) | R+4.5 | D+2.5 |
| 2000 | 44.5%(14,798) | 51.6%(17,139) | R+7.0 | R+8.2 |
| 1996 | 44.6%(12,715) | 43.4%(12,380) | D+1.2 | R+2.0 |
| 1992 | 40.1%(13,744) | 37.0%(12,655) | D+3.2 | D+21.6 |
| 1988 | 40.5%(11,811) | 58.9%(17,182) | R+18.4 | D+11.3 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
DeKalb County, IL • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 52.7%(17,907) | 47.3%(16,063) | D+5.4 | D+0.7 |
| 2020 | 49.3%(23,423) | 44.6%(21,198) | D+4.7 | D+3.1 |
| 2016 | 46.8%(20,025) | 45.2%(19,355) | D+1.6 | D+7.1 |
| 2014 | 44.6%(12,551) | 50.1%(14,096) | R+5.5 | D+11.2 |
| 2010 | 37.4%(10,633) | 54.2%(15,389) | R+16.7 | R+47.8 |
| 2008 | 63.0%(27,467) | 31.9%(13,918) | D+31.1 | R+4.5 |
| 2004 | 65.7%(26,077) | 30.1%(11,954) | D+35.6 | D+26.0 |
| 2002 | 53.6%(13,040) | 44.1%(10,718) | D+9.5 | D+30.7 |
| 1998 | 37.9%(8,065) | 59.1%(12,562) | R+21.1 | R+16.8 |
| 1996 | 45.2%(12,676) | 49.5%(13,884) | R+4.3 | R+5.9 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 49.1%(17,047) | 46.5%(16,119) | D+2.7 | D+0.4 |
| 2018 | 47.0%(17,016) | 44.7%(16,181) | D+2.3 | D+21.1 |
| 2014 | 38.8%(10,944) | 57.7%(16,246) | R+18.8 | R+4.6 |
| 2010 | 37.8%(10,852) | 52.0%(14,949) | R+14.3 | R+2.0 |
| 2006 | 34.3%(8,755) | 46.5%(11,870) | R+12.2 | R+0.6 |
| 2002 | 41.9%(10,249) | 53.6%(13,100) | R+11.7 | D+16.7 |
| 1998 | 34.8%(7,331) | 63.1%(13,313) | R+28.4 | D+16.6 |
| 1994 | 26.4%(4,942) | 71.4%(13,354) | R+45.0 | R+24.8 |
| 1990 | 39.3%(8,120) | 59.4%(12,279) | R+20.1 | D+43.1 |
| 1986 | 3.2%(628) | 66.3%(13,197) | R+63.2 | R+36.9 |
Source: Official state election returns via MIT Election Data + Science Lab