Plymouth County, Iowa
AkashicPlymouth County, IATrumpR+54.1
2024 precinct map of Plymouth CountyPrecinct-level 2024 presidential results for Plymouth County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Donald Trump ✓Republican | 76.3% | 10,661 |
|---|---|---|
| Kamala HarrisDemocratic | 22.2% | 3,104 |
| Robert F Kennedy Jr.We The People | 0.8% | 107 |
Harris +50Trump +50
11 precincts · 13,971 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 22.2%Harris3,104 | 76.3%Trump10,661 | 0.8%Kennedy107 | 13,971 | ||
| R | 24.6%Biden3,494 | 73.9%Trump10,492 | 0.8%Jorgensen112 | 14,188 | ||
| R | 21.7%Clinton2,885 | 72.9%Trump9,680 | 2.6%Johnson343 | 13,274 | ||
| R | 32.2%Obama4,164 | 66.4%Romney8,597 | 0.7%Johnson89 | 12,950 | ||
| R | 37.0%Obama4,629 | 62.1%McCain7,765 | 0.9%Nader118 | 12,512 | ||
| R | 35.0%Kerry4,278 | 63.9%Bush7,810 | 1.1%Other134 | 12,222 | ||
| R | 34.6%Gore3,499 | 61.2%Bush6,189 | 2.0%Nader198 | 10,118 | ||
| R | 37.6%Clinton3,745 | 51.4%Dole5,117 | 10.0%Perot997 | 9,956 | ||
| R | 30.2%Clinton3,171 | 49.6%Bush5,196 | 19.4%Perot2,039 | 10,484 | ||
| R | 43.9%Dukakis4,220 | 55.3%Bush5,316 | 0.7%Larouche71 | 9,607 | ||
| R | 34.5%Mondale3,464 | 64.6%Reagan6,482 | 0.8%Larouche81 | 10,027 | ||
| R | 28.7%Carter2,965 | 63.0%Reagan6,515 | 8.4%Anderson866 | 10,346 | ||
| R | 42.8%Carter4,284 | 55.8%Ford5,590 | 1.4%McCarthy142 | 10,016 | ||
| R | 38.5%McGovern4,033 | 60.6%Nixon6,339 | 0.9%Schmitz94 | 10,466 | ||
| R | 32.2%Humphrey3,234 | 62.1%Nixon6,236 | 5.6%Wallace567 | 10,037 | ||
| D | 53.6%Johnson5,691 | 46.4%Goldwater4,920 | 0.0%Hass2 | 10,613 | ||
| R | 42.1%Kennedy4,671 | 57.9%Nixon6,432 | 0.0% | 11,103 | ||
| R | 32.6%Stevenson3,502 | 67.4%Eisenhower7,246 | 0.0% | 10,748 | ||
| R | 25.3%Stevenson2,768 | 74.3%Eisenhower8,140 | 0.4%Hallinan49 | 10,957 | ||
| R | 46.1%Truman4,339 | 53.1%Dewey5,002 | 0.8%Thurmond75 | 9,416 | ||
| R | 32.7%Roosevelt2,970 | 67.0%Dewey6,085 | 0.2%Thomas21 | 9,076 | ||
| R | 33.1%Roosevelt3,831 | 66.7%Willkie7,725 | 0.2%Thomas23 | 11,579 | ||
| D | 52.4%Roosevelt5,994 | 36.1%Landon4,133 | 11.5%Lemke1,318 | 11,445 | ||
| D | 71.6%Roosevelt7,565 | 27.3%Hoover2,888 | 1.0%Thomas110 | 10,563 | ||
| D | 50.7%Smith5,015 | 49.0%Hoover4,848 | 0.3%Thomas34 | 9,897 | ||
| R | 17.8%Davis1,605 | 42.1%Coolidge3,803 | 40.2%La Follette3,628 | 9,036 | ||
| R | 22.5%Cox1,801 | 76.2%Harding6,090 | 1.3%Debs105 | 7,996 | ||
| R | 45.0%Wilson2,258 | 53.1%Hughes2,666 | 1.9%Benson93 | 5,017 | ||
| O | 41.2%Wilson2,038 | 16.7%Taft825 | 42.1%Roosevelt2,079 | 4,942 | ||
| R | 44.0%Bryan2,168 | 53.2%Taft2,622 | 2.8%Debs140 | 4,930 | ||
| R | 35.2%Parker1,663 | 61.5%Roosevelt2,905 | 3.3%Debs158 | 4,726 | ||
| R | 45.1%Bryan2,307 | 53.0%McKinley2,712 | 1.9%Woolley95 | 5,114 | ||
| R | 46.9%Bryan2,392 | 51.4%McKinley2,623 | 1.7%Palmer88 | 5,103 | ||
| D | 53.8%Cleveland2,244 | 40.1%Harrison1,672 | 6.1%Weaver253 | 4,169 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +13.7% |
| 1896 | −4.5% |
| 1900 | −7.9% |
| 1904 | −26.3% |
| 1908 | −9.2% |
| 1912 | +24.5% |
| 1916 | −8.1% |
| 1920 | −53.6% |
| 1924 | −24.3% |
| 1928 | +1.7% |
| 1932 | +44.3% |
| 1936 | +16.3% |
| 1940 | −33.6% |
| 1944 | −34.3% |
| 1948 | −7.0% |
| 1952 | −49.0% |
| 1956 | −34.8% |
| 1960 | −15.9% |
| 1964 | +7.3% |
| 1968 | −29.9% |
| 1972 | −22.0% |
| 1976 | −13.0% |
| 1980 | −34.3% |
| 1984 | −30.1% |
| 1988 | −11.4% |
| 1992 | −19.3% |
| 1996 | −13.8% |
| 2000 | −26.6% |
| 2004 | −28.9% |
| 2008 | −25.1% |
| 2012 | −34.2% |
| 2016 | −51.2% |
| 2020 | −49.3% |
| 2024 | −54.1% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 17,528 | 3,704 | 7,401 | 6,418 | 5 |
| 2010 | 17,807 | 3,703 | 7,749 | 6,344 | 11 |
| 2012 | 18,105 | 3,579 | 8,268 | 6,242 | 16 |
| 2014 | 17,757 | 3,421 | 8,177 | 6,129 | 30 |
| 2016 | 18,149 | 3,378 | 8,766 | 5,932 | 73 |
| 2018 | 17,749 | 3,185 | 8,709 | 5,755 | 100 |
| 2020 | 18,243 | 3,351 | 9,426 | 5,353 | 113 |
| 2022 | 18,270 | 3,130 | 9,494 | 5,515 | 131 |
| 2024 | 18,437 | 2,896 | 9,734 | 5,685 | 122 |
Source: Iowa Secretary of State
Plymouth County in northwest Iowa delivered a 54-point Republican presidential margin in 2024, reflecting the heavily rural, agricultural character of a region where small-town and farm households dominate the electorate.
Across the recorded series it reached a Democratic high of 44.3 points in 1932 and a Republican high of 54.1 points in 2024. Between 2020 and 2024 the county moved 4.8 points toward the Republican candidate; the 2024 margin was 54.1 points.
A population of 25,747, a 88% non-Hispanic-white share, and a median household income of $83,251 describe the county. The county's voting pattern over the last decade is most similar to that of Osceola County and McKenzie County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Plymouth County, Iowa. Akashic. https://akashic.app/county/19149/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in Plymouth County
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Frequently asked questions
How did Plymouth County, Iowa vote in 2024?
In 2024, Plymouth County, Iowa voted Republican by 54.1 points (R+54.1), carried by the Republican candidate. Out of 13,971 votes cast, 3,104 went Democratic and 10,661 went Republican.
When did Plymouth County, Iowa last vote Democratic?
The most recent presidential election in which Plymouth County, Iowa voted Democratic was 1964.
How many people live in Plymouth County, Iowa?
Plymouth County, Iowa has a population of 25,747 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Plymouth County, Iowa?
Median household income in Plymouth County, Iowa is $83,251 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Plymouth County, Iowa?
Akashic tracks 38 presidential elections in Plymouth County, Iowa from 1876 to 2024. Of those, 5 went Democratic and 28 went Republican.