Buchanan County, IA
IA · Presidential Elections 1892–2024
Buchanan County, IA (Iowa) voted R+28.1 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 6,790 votes (63.16%) to 3,766 (35.03%) for Harris.
This represents a R+7.2% swing toward Republicans compared to 2020. Buchanan County is classified as a solid Republican county. Buchanan County has voted Republican in every presidential election since 2016. The county has a population of approximately 20,694.
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 | 35.0%(3,766) | 63.2%(6,790) | R+28.1 | R+7.2 |
| 2020 | 38.7%(4,169) | 59.6%(6,420) | R+20.9 | R+6.1 |
| 2016 | 38.3%(3,970) | 53.1%(5,510) | R+14.8 | R+28.7 |
| 2012 | 56.1%(5,911) | 42.2%(4,450) | D+13.9 | R+4.6 |
| 2008 | 58.5%(6,050) | 40.0%(4,139) | D+18.5 | D+10.7 |
| 2004 | 53.5%(5,608) | 45.8%(4,797) | D+7.7 | R+2.4 |
| 2000 | 53.6%(5,045) | 43.5%(4,092) | D+10.1 | R+11.7 |
| 1996 | 55.8%(4,997) | 34.0%(3,043) | D+21.8 | D+13.0 |
| 1992 | 43.1%(4,166) | 34.3%(3,313) | D+8.8 | R+6.6 |
| 1988 | 57.4%(4,778) | 42.0%(3,495) | D+15.4 | D+24.6 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Buchanan County, IA • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 37.0%(3,071) | 61.2%(5,085) | R+24.2 | R+7.7 |
| 2020 | 40.1%(4,292) | 56.7%(6,063) | R+16.6 | D+13.7 |
| 2016 | 32.6%(3,313) | 62.9%(6,382) | R+30.2 | R+25.1 |
| 2014 | 44.9%(3,538) | 50.1%(3,945) | R+5.2 | D+30.9 |
| 2010 | 31.0%(2,446) | 67.1%(5,291) | R+36.1 | R+72.7 |
| 2008 | 68.3%(6,952) | 31.7%(3,226) | D+36.6 | D+80.8 |
| 2004 | 27.2%(2,839) | 71.4%(7,463) | R+44.2 | R+64.2 |
| 2002 | 59.0%(4,285) | 39.1%(2,838) | D+19.9 | D+63.9 |
| 1998 | 27.4%(2,008) | 71.5%(5,228) | R+44.0 | R+62.2 |
| 1996 | 58.3%(5,214) | 40.0%(3,583) | D+18.2 | D+72.7 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 32.3%(2,650) | 65.2%(5,356) | R+32.9 | R+26.6 |
| 2018 | 45.5%(3,865) | 51.8%(4,400) | R+6.3 | D+11.2 |
| 2014 | 39.5%(3,118) | 57.0%(4,498) | R+17.5 | R+16.2 |
| 2010 | 47.6%(3,788) | 48.9%(3,889) | R+1.3 | R+18.4 |
| 2006 | 58.0%(4,635) | 40.8%(3,263) | D+17.2 | D+1.9 |
| 2002 | 56.0%(4,079) | 40.7%(2,970) | D+15.2 | D+0.7 |
| 1998 | 56.3%(4,137) | 41.7%(3,068) | D+14.5 | D+28.8 |
| 1994 | 42.0%(3,151) | 56.3%(4,222) | R+14.3 | D+6.4 |
| 1990 | 39.2%(2,575) | 59.8%(3,929) | R+20.6 | R+25.7 |
| 1986 | 52.5%(3,671) | 47.4%(3,313) | D+5.1 | D+20.5 |
Source: Official state election returns via MIT Election Data + Science Lab