Madison County, IA
IA · Presidential Elections 1892–2024
Madison County, IA (Iowa) voted R+38.5 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 6,864 votes (68.45%) to 3,008 (30%) for Harris.
This represents a R+4.1% swing toward Republicans compared to 2020. Madison County is classified as a deep Republican county. Madison County has voted Republican in every presidential election since 2000. The county has a population of approximately 16,926.
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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 | 30.0%(3,008) | 68.5%(6,864) | R+38.5 | R+4.1 |
| 2020 | 31.9%(3,134) | 66.2%(6,507) | R+34.3 | R+3.5 |
| 2016 | 30.8%(2,678) | 61.6%(5,360) | R+30.8 | R+18.9 |
| 2012 | 42.9%(3,630) | 54.8%(4,638) | R+11.9 | R+1.9 |
| 2008 | 44.0%(3,733) | 54.0%(4,579) | R+10.0 | D+4.5 |
| 2004 | 42.2%(3,380) | 56.7%(4,538) | R+14.5 | R+6.3 |
| 2000 | 44.4%(3,093) | 52.5%(3,662) | R+8.2 | R+16.4 |
| 1996 | 48.5%(3,070) | 40.3%(2,550) | D+8.2 | D+6.5 |
| 1992 | 41.1%(2,525) | 39.4%(2,421) | D+1.7 | R+15.6 |
| 1988 | 58.4%(3,421) | 41.1%(2,410) | D+17.2 | D+18.9 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Madison County, IA • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 31.7%(2,405) | 66.7%(5,064) | R+35.0 | R+3.3 |
| 2020 | 32.6%(3,168) | 64.3%(6,245) | R+31.7 | D+11.9 |
| 2016 | 25.9%(2,205) | 69.5%(5,921) | R+43.6 | R+17.0 |
| 2014 | 34.1%(2,226) | 60.7%(3,967) | R+26.7 | D+17.0 |
| 2010 | 26.8%(1,810) | 70.5%(4,753) | R+43.6 | R+48.8 |
| 2008 | 52.5%(4,386) | 47.4%(3,953) | D+5.2 | D+58.5 |
| 2004 | 22.4%(1,778) | 75.7%(6,007) | R+53.3 | R+56.2 |
| 2002 | 50.7%(2,960) | 47.8%(2,790) | D+2.9 | D+45.6 |
| 1998 | 27.9%(1,498) | 70.6%(3,794) | R+42.7 | R+43.7 |
| 1996 | 49.9%(3,159) | 48.9%(3,095) | D+1.0 | D+44.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 27.5%(2,077) | 70.2%(5,307) | R+42.7 | R+16.4 |
| 2018 | 35.8%(2,739) | 62.1%(4,754) | R+26.3 | D+7.9 |
| 2014 | 30.3%(1,980) | 64.5%(4,210) | R+34.2 | R+12.9 |
| 2010 | 35.9%(2,444) | 57.2%(3,894) | R+21.3 | R+18.4 |
| 2006 | 47.7%(2,939) | 50.6%(3,118) | R+2.9 | R+4.9 |
| 2002 | 49.6%(2,894) | 47.5%(2,775) | D+2.0 | D+1.7 |
| 1998 | 49.6%(2,716) | 49.2%(2,695) | D+0.4 | D+21.9 |
| 1994 | 38.3%(2,050) | 59.8%(3,202) | R+21.5 | R+2.0 |
| 1990 | 40.1%(2,085) | 59.6%(3,101) | R+19.5 | R+18.4 |
| 1986 | 49.4%(2,453) | 50.5%(2,509) | R+1.1 | R+1.3 |
Source: Official state election returns via MIT Election Data + Science Lab