Plymouth County, IA
IA · Presidential Elections 1892–2024
Plymouth County, IA (Iowa) voted R+54.1 for Donald Trump (Republican) in the 2024 presidential election, with Trump receiving 10,661 votes (76.31%) to 3,104 (22.22%) for Harris.
This represents a R+4.8% swing toward Republicans compared to 2020. Plymouth County is classified as a deep Republican county. Plymouth County has voted Republican in every presidential election since 1968. The county has a population of approximately 25,747.
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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 | 22.2%(3,104) | 76.3%(10,661) | R+54.1 | R+4.8 |
| 2020 | 24.6%(3,494) | 74.0%(10,492) | R+49.3 | D+1.9 |
| 2016 | 21.7%(2,885) | 72.9%(9,680) | R+51.2 | R+17.0 |
| 2012 | 32.1%(4,164) | 66.4%(8,597) | R+34.2 | R+9.2 |
| 2008 | 37.0%(4,629) | 62.1%(7,765) | R+25.1 | D+3.8 |
| 2004 | 35.0%(4,278) | 63.9%(7,810) | R+28.9 | R+2.3 |
| 2000 | 34.6%(3,499) | 61.2%(6,189) | R+26.6 | R+12.8 |
| 1996 | 37.6%(3,745) | 51.4%(5,117) | R+13.8 | D+5.5 |
| 1992 | 30.3%(3,171) | 49.6%(5,196) | R+19.3 | R+7.9 |
| 1988 | 43.9%(4,220) | 55.3%(5,316) | R+11.4 | D+18.7 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Plymouth County, IA • 1892–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 20.8%(2,053) | 77.4%(7,650) | R+56.6 | R+9.9 |
| 2020 | 25.6%(3,587) | 72.3%(10,145) | R+46.7 | D+15.2 |
| 2016 | 17.7%(2,300) | 79.7%(10,338) | R+62.0 | R+13.1 |
| 2014 | 23.7%(2,182) | 72.6%(6,678) | R+48.9 | D+17.1 |
| 2010 | 16.2%(1,422) | 82.1%(7,219) | R+65.9 | R+68.9 |
| 2008 | 51.5%(6,240) | 48.5%(5,886) | D+2.9 | D+64.4 |
| 2004 | 18.6%(2,229) | 80.1%(9,588) | R+61.5 | R+52.3 |
| 2002 | 44.2%(3,307) | 53.4%(3,990) | R+9.1 | D+53.5 |
| 1998 | 18.5%(1,245) | 81.2%(5,461) | R+62.7 | R+34.3 |
| 1996 | 35.0%(3,366) | 63.4%(6,099) | R+28.4 | D+32.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 16.7%(1,643) | 81.7%(8,027) | R+65.0 | R+16.7 |
| 2018 | 25.1%(2,717) | 73.3%(7,941) | R+48.2 | D+13.2 |
| 2014 | 18.4%(1,695) | 79.8%(7,366) | R+61.5 | R+12.6 |
| 2010 | 24.2%(2,139) | 73.1%(6,452) | R+48.9 | R+18.1 |
| 2006 | 34.1%(2,775) | 64.9%(5,275) | R+30.7 | R+20.2 |
| 2002 | 43.3%(3,264) | 53.9%(4,062) | R+10.6 | D+16.8 |
| 1998 | 36.0%(2,482) | 63.4%(4,369) | R+27.4 | D+7.6 |
| 1994 | 31.9%(2,368) | 66.9%(4,964) | R+35.0 | D+5.3 |
| 1990 | 29.7%(2,160) | 70.0%(5,087) | R+40.3 | R+17.4 |
| 1986 | 38.6%(3,056) | 61.4%(4,866) | R+22.8 | D+7.6 |
Source: Official state election returns via MIT Election Data + Science Lab