Harrison County, Iowa
AkashicHarrison County, IATrumpR+41.7
2024 precinct map of Harrison CountyPrecinct-level 2024 presidential results for Harrison 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 | 69.9% | 5,566 |
|---|---|---|
| Kamala HarrisDemocratic | 28.2% | 2,245 |
| Robert F Kennedy Jr.We The People | 1.0% | 83 |
Harris +50Trump +50
11 precincts · 7,959 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 | 28.2%Harris2,245 | 69.9%Trump5,566 | 1.0%Kennedy83 | 7,959 | ||
| R | 29.9%Biden2,440 | 68.3%Trump5,569 | 1.0%Jorgensen85 | 8,155 | ||
| R | 28.2%Clinton2,131 | 64.9%Trump4,902 | 2.8%Johnson210 | 7,552 | ||
| R | 42.8%Obama3,136 | 55.5%Romney4,065 | 0.7%Johnson52 | 7,322 | ||
| R | 46.9%Obama3,555 | 51.6%McCain3,909 | 1.5%Nader114 | 7,578 | ||
| R | 37.8%Kerry2,906 | 60.9%Bush4,680 | 1.2%Other94 | 7,680 | ||
| R | 39.0%Gore2,551 | 58.1%Bush3,802 | 1.9%Nader126 | 6,543 | ||
| R | 39.5%Clinton2,576 | 47.0%Dole3,070 | 12.6%Perot820 | 6,527 | ||
| R | 34.2%Clinton2,349 | 40.2%Bush2,763 | 24.6%Perot1,691 | 6,868 | ||
| R | 47.8%Dukakis2,883 | 51.6%Bush3,108 | 0.6%Larouche36 | 6,027 | ||
| R | 36.3%Mondale2,495 | 63.2%Reagan4,352 | 0.5%Larouche35 | 6,882 | ||
| R | 30.5%Carter2,152 | 63.8%Reagan4,502 | 5.7%Anderson399 | 7,053 | ||
| R | 47.5%Carter3,228 | 51.4%Ford3,489 | 1.1%McCarthy73 | 6,790 | ||
| R | 33.0%McGovern2,369 | 65.8%Nixon4,721 | 1.1%Schmitz81 | 7,171 | ||
| R | 35.3%Humphrey2,410 | 56.7%Nixon3,867 | 8.0%Wallace548 | 6,825 | ||
| D | 58.8%Johnson4,575 | 41.1%Goldwater3,203 | 0.1%Hass9 | 7,787 | ||
| R | 42.2%Kennedy3,613 | 57.7%Nixon4,940 | 0.1%Byrd9 | 8,562 | ||
| R | 41.5%Stevenson3,709 | 58.3%Eisenhower5,209 | 0.2%Andrews17 | 8,935 | ||
| R | 36.0%Stevenson3,370 | 63.8%Eisenhower5,972 | 0.3%Hallinan24 | 9,366 | ||
| D | 51.1%Truman4,608 | 48.1%Dewey4,341 | 0.7%Thurmond67 | 9,016 | ||
| R | 45.1%Roosevelt4,201 | 54.3%Dewey5,059 | 0.5%Thomas49 | 9,309 | ||
| R | 46.5%Roosevelt5,317 | 53.3%Willkie6,094 | 0.1%Thomas17 | 11,428 | ||
| D | 53.1%Roosevelt6,206 | 45.5%Landon5,314 | 1.4%Lemke158 | 11,678 | ||
| D | 67.5%Roosevelt7,427 | 31.9%Hoover3,513 | 0.6%Thomas68 | 11,008 | ||
| R | 43.9%Smith4,406 | 55.8%Hoover5,605 | 0.3%Thomas35 | 10,046 | ||
| R | 32.0%Davis3,179 | 51.0%Coolidge5,062 | 17.0%La Follette1,683 | 9,924 | ||
| R | 35.7%Cox3,479 | 62.9%Harding6,127 | 1.4%Debs136 | 9,742 | ||
| D | 51.5%Wilson2,932 | 45.9%Hughes2,610 | 2.6%Benson147 | 5,689 | ||
| D | 40.5%Wilson2,157 | 28.7%Taft1,528 | 30.7%Roosevelt1,636 | 5,321 | ||
| R | 43.6%Bryan2,425 | 52.4%Taft2,914 | 4.0%Debs222 | 5,561 | ||
| R | 31.3%Parker1,696 | 62.1%Roosevelt3,364 | 6.7%Debs361 | 5,421 | ||
| R | 45.1%Bryan2,837 | 52.5%McKinley3,303 | 2.4%Woolley151 | 6,291 | ||
| D | 52.6%Bryan3,214 | 46.5%McKinley2,839 | 0.9%Palmer55 | 6,108 | ||
| R | 43.1%Cleveland2,200 | 45.0%Harrison2,302 | 11.9%Weaver608 | 5,110 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −2.0% |
| 1896 | +6.1% |
| 1900 | −7.4% |
| 1904 | −30.8% |
| 1908 | −8.8% |
| 1912 | +11.8% |
| 1916 | +5.7% |
| 1920 | −27.2% |
| 1924 | −19.0% |
| 1928 | −11.9% |
| 1932 | +35.6% |
| 1936 | +7.6% |
| 1940 | −6.8% |
| 1944 | −9.2% |
| 1948 | +3.0% |
| 1952 | −27.8% |
| 1956 | −16.8% |
| 1960 | −15.5% |
| 1964 | +17.6% |
| 1968 | −21.3% |
| 1972 | −32.8% |
| 1976 | −3.8% |
| 1980 | −33.3% |
| 1984 | −27.0% |
| 1988 | −3.7% |
| 1992 | −6.0% |
| 1996 | −7.6% |
| 2000 | −19.1% |
| 2004 | −23.1% |
| 2008 | −4.7% |
| 2012 | −12.7% |
| 2016 | −36.7% |
| 2020 | −38.4% |
| 2024 | −41.7% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 9,361 | 3,085 | 3,311 | 2,962 | 3 |
| 2010 | 9,341 | 2,793 | 3,761 | 2,779 | 8 |
| 2012 | 8,820 | 2,574 | 3,649 | 2,587 | 10 |
| 2014 | 8,110 | 2,133 | 3,632 | 2,317 | 28 |
| 2016 | 8,515 | 2,144 | 3,830 | 2,496 | 45 |
| 2018 | 8,830 | 2,121 | 3,925 | 2,718 | 66 |
| 2020 | 9,362 | 2,142 | 4,769 | 2,368 | 83 |
| 2022 | 9,017 | 1,863 | 4,801 | 2,270 | 83 |
| 2024 | 9,452 | 1,795 | 5,109 | 2,447 | 101 |
Source: Iowa Secretary of State
Harrison County, tucked along the Missouri River in western Iowa, has shifted steadily toward lopsided Republican margins over the past two decades, with its 2024 presidential gap of 41.7 points reflecting a broader rural consolidation pattern across the western tier of the state.
Across the recorded series it reached a Democratic high of 35.6 points in 1932 and a Republican high of 41.7 points in 2024. Between 2020 and 2024 the county moved 3.4 points toward the Republican candidate; the 2024 margin was 41.7 points.
A population of 14,632, a 94% non-Hispanic-white share, and a median household income of $79,535 describe the county. The county's voting pattern over the last decade is most similar to that of Griggs County and Codington County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Harrison County, Iowa. Akashic. https://akashic.app/county/19085/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Harrison County, Iowa vote in 2024?
In 2024, Harrison County, Iowa voted Republican by 41.7 points (R+41.7), carried by the Republican candidate. Out of 7,959 votes cast, 2,245 went Democratic and 5,566 went Republican.
When did Harrison County, Iowa last vote Democratic?
The most recent presidential election in which Harrison County, Iowa voted Democratic was 1964.
How many people live in Harrison County, Iowa?
Harrison County, Iowa has a population of 14,632 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Harrison County, Iowa?
Median household income in Harrison County, Iowa is $79,535 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Harrison County, Iowa?
Akashic tracks 38 presidential elections in Harrison County, Iowa from 1876 to 2024. Of those, 7 went Democratic and 27 went Republican.