Hamilton County, IA
IA · Presidential Elections 1892–2024
Hamilton County, IA (Iowa) voted R+33.2 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 5,004 votes (65.87%) to 2,482 (32.67%) for Harris.
This represents a R+6.6% swing toward Republicans compared to 2020. Hamilton County is classified as a deep Republican county. Hamilton County has voted Republican in every presidential election since 2012. The county has a population of approximately 14,886.
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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 | 32.7%(2,482) | 65.9%(5,004) | R+33.2 | R+6.6 |
| 2020 | 35.8%(2,843) | 62.4%(4,956) | R+26.6 | R+4.3 |
| 2016 | 35.0%(2,726) | 57.3%(4,463) | R+22.3 | R+19.7 |
| 2012 | 47.7%(3,782) | 50.4%(3,991) | R+2.6 | R+3.9 |
| 2008 | 49.7%(4,018) | 48.4%(3,913) | D+1.3 | D+7.0 |
| 2004 | 46.7%(3,895) | 52.4%(4,367) | R+5.7 | D+1.7 |
| 2000 | 45.0%(3,407) | 52.4%(3,968) | R+7.4 | R+12.2 |
| 1996 | 47.5%(3,455) | 42.7%(3,109) | D+4.8 | D+1.7 |
| 1992 | 42.5%(3,262) | 39.5%(3,031) | D+3.0 | R+8.7 |
| 1988 | 55.5%(4,156) | 43.7%(3,277) | D+11.7 | D+24.1 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Hamilton County, IA • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 33.6%(1,945) | 65.0%(3,757) | R+31.3 | R+8.9 |
| 2020 | 37.0%(2,913) | 59.5%(4,679) | R+22.5 | D+16.6 |
| 2016 | 28.5%(2,170) | 67.5%(5,142) | R+39.0 | R+15.4 |
| 2014 | 35.8%(2,035) | 59.4%(3,379) | R+23.6 | D+14.6 |
| 2010 | 29.9%(1,856) | 68.1%(4,226) | R+38.2 | R+58.2 |
| 2008 | 60.0%(4,765) | 40.0%(3,178) | D+20.0 | D+73.9 |
| 2004 | 22.3%(1,839) | 76.2%(6,287) | R+53.9 | R+62.6 |
| 2002 | 53.3%(3,283) | 44.6%(2,750) | D+8.7 | D+54.9 |
| 1998 | 26.5%(1,516) | 72.7%(4,165) | R+46.2 | R+47.2 |
| 1996 | 49.8%(3,639) | 48.9%(3,569) | D+1.0 | D+49.9 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 29.7%(1,704) | 68.2%(3,914) | R+38.5 | R+20.6 |
| 2018 | 40.1%(2,560) | 58.0%(3,703) | R+17.9 | D+12.9 |
| 2014 | 32.7%(1,870) | 63.5%(3,630) | R+30.8 | R+15.2 |
| 2010 | 39.8%(2,480) | 55.3%(3,450) | R+15.6 | R+20.4 |
| 2006 | 51.6%(3,261) | 46.8%(2,956) | D+4.8 | R+4.5 |
| 2002 | 53.3%(3,289) | 44.0%(2,713) | D+9.3 | D+6.7 |
| 1998 | 50.9%(2,950) | 48.3%(2,799) | D+2.6 | D+15.4 |
| 1994 | 42.7%(2,701) | 55.5%(3,511) | R+12.8 | D+6.8 |
| 1990 | 40.1%(2,474) | 59.7%(3,684) | R+19.6 | R+14.2 |
| 1986 | 47.3%(2,719) | 52.7%(3,030) | R+5.4 | D+6.1 |
Source: Official state election returns via MIT Election Data + Science Lab