Marion County, Iowa
AkashicMarion County, IATrumpR+37.6
2024 precinct map of Marion CountyPrecinct-level 2024 presidential results for Marion 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 | 67.9% | 13,289 |
|---|---|---|
| Kamala HarrisDemocratic | 30.3% | 5,928 |
| Robert F Kennedy Jr.We The People | 0.8% | 163 |
Harris +50Trump +50
19 precincts · 19,566 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 | 30.3%Harris5,928 | 67.9%Trump13,289 | 0.8%Kennedy163 | 19,566 | ||
| R | 32.1%Biden6,178 | 65.8%Trump12,663 | 1.2%Jorgensen233 | 19,232 | ||
| R | 30.5%Clinton5,482 | 60.9%Trump10,962 | 3.9%Johnson706 | 17,991 | ||
| R | 42.4%Obama7,507 | 55.6%Romney9,828 | 0.8%Johnson149 | 17,687 | ||
| R | 43.6%Obama7,421 | 54.4%McCain9,256 | 2.1%Nader353 | 17,030 | ||
| R | 39.4%Kerry6,574 | 59.8%Bush9,990 | 0.8%Other132 | 16,696 | ||
| R | 39.8%Gore5,741 | 58.0%Bush8,358 | 1.4%Nader208 | 14,408 | ||
| R | 45.8%Clinton5,978 | 46.7%Dole6,100 | 6.7%Perot871 | 13,052 | ||
| R | 40.9%Clinton5,531 | 44.8%Bush6,062 | 14.0%Perot1,896 | 13,533 | ||
| D | 53.4%Dukakis6,922 | 45.7%Bush5,914 | 0.9%Larouche118 | 12,954 | ||
| R | 46.3%Mondale6,313 | 53.2%Reagan7,259 | 0.5%Larouche62 | 13,634 | ||
| R | 40.6%Carter5,490 | 49.3%Reagan6,665 | 10.1%Anderson1,363 | 13,518 | ||
| D | 52.5%Carter6,226 | 45.8%Ford5,429 | 1.7%McCarthy202 | 11,857 | ||
| R | 40.3%McGovern4,643 | 57.1%Nixon6,583 | 2.6%Schmitz305 | 11,531 | ||
| R | 41.7%Humphrey4,618 | 52.4%Nixon5,791 | 5.9%Wallace653 | 11,062 | ||
| D | 66.8%Johnson7,911 | 33.0%Goldwater3,903 | 0.2%Hass28 | 11,842 | ||
| R | 37.9%Kennedy4,547 | 62.0%Nixon7,444 | 0.1%Byrd17 | 12,008 | ||
| R | 43.7%Stevenson5,316 | 56.1%Eisenhower6,830 | 0.2%Andrews22 | 12,168 | ||
| R | 41.5%Stevenson5,196 | 57.2%Eisenhower7,165 | 1.2%Hallinan155 | 12,516 | ||
| D | 58.0%Truman6,300 | 39.7%Dewey4,312 | 2.4%Thurmond258 | 10,870 | ||
| D | 56.1%Roosevelt6,365 | 43.0%Dewey4,874 | 0.9%Thomas99 | 11,338 | ||
| D | 54.2%Roosevelt6,915 | 45.2%Willkie5,763 | 0.6%Thomas75 | 12,753 | ||
| D | 56.3%Roosevelt6,745 | 41.5%Landon4,975 | 2.2%Lemke266 | 11,986 | ||
| D | 64.0%Roosevelt7,067 | 33.5%Hoover3,695 | 2.5%Thomas272 | 11,034 | ||
| R | 39.2%Smith4,113 | 59.4%Hoover6,225 | 1.4%Thomas149 | 10,487 | ||
| R | 22.4%Davis2,383 | 47.6%Coolidge5,058 | 29.9%La Follette3,174 | 10,615 | ||
| R | 40.2%Cox3,861 | 56.6%Harding5,435 | 3.2%Debs303 | 9,599 | ||
| D | 54.0%Wilson3,094 | 42.9%Hughes2,459 | 3.1%Benson179 | 5,732 | ||
| D | 43.3%Wilson2,276 | 22.7%Taft1,191 | 34.0%Roosevelt1,788 | 5,255 | ||
| D | 48.1%Bryan2,739 | 46.1%Taft2,625 | 5.8%Debs328 | 5,692 | ||
| R | 39.1%Parker2,202 | 53.1%Roosevelt2,988 | 7.8%Debs442 | 5,632 | ||
| O | 48.5%Bryan2,950 | 48.5%McKinley2,950 | 2.9%Woolley179 | 6,079 | ||
| D | 52.4%Bryan3,119 | 46.1%McKinley2,741 | 1.5%Palmer92 | 5,952 | ||
| D | 47.9%Cleveland2,540 | 43.7%Harrison2,319 | 8.4%Weaver448 | 5,307 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +4.2% |
| 1896 | +6.4% |
| 1900 | +0.0% |
| 1904 | −14.0% |
| 1908 | +2.0% |
| 1912 | +20.6% |
| 1916 | +11.1% |
| 1920 | −16.4% |
| 1924 | −25.2% |
| 1928 | −20.1% |
| 1932 | +30.6% |
| 1936 | +14.8% |
| 1940 | +9.0% |
| 1944 | +13.2% |
| 1948 | +18.3% |
| 1952 | −15.7% |
| 1956 | −12.4% |
| 1960 | −24.1% |
| 1964 | +33.8% |
| 1968 | −10.6% |
| 1972 | −16.8% |
| 1976 | +6.7% |
| 1980 | −8.7% |
| 1984 | −6.9% |
| 1988 | +7.8% |
| 1992 | −3.9% |
| 1996 | −0.9% |
| 2000 | −18.2% |
| 2004 | −20.5% |
| 2008 | −10.8% |
| 2012 | −13.1% |
| 2016 | −30.5% |
| 2020 | −33.7% |
| 2024 | −37.6% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 24,505 | 7,280 | 8,675 | 8,546 | 4 |
| 2010 | 24,690 | 6,838 | 9,277 | 8,566 | 9 |
| 2012 | 24,555 | 6,258 | 9,821 | 8,455 | 21 |
| 2014 | 24,727 | 5,960 | 9,852 | 8,881 | 34 |
| 2016 | 24,509 | 5,795 | 10,221 | 8,406 | 87 |
| 2018 | 23,985 | 5,395 | 10,202 | 8,257 | 131 |
| 2020 | 24,757 | 5,814 | 11,148 | 7,625 | 170 |
| 2022 | 24,676 | 5,291 | 11,377 | 7,830 | 178 |
| 2024 | 25,275 | 4,793 | 11,807 | 8,480 | 195 |
Source: Iowa Secretary of State
Marion County, anchored by Knoxville, sits in south-central Iowa and has shifted steadily rightward over the past two decades, delivering its 2024 presidential margin of R+37.6 — well above the state's already-lopsided statewide result.
Across the recorded series it reached a Democratic high of 33.8 points in 1964 and a Republican high of 37.6 points in 2024. Between 2020 and 2024 the county moved 3.9 points toward the Republican candidate; the 2024 margin was 37.6 points.
A population of 33,642, a 93% non-Hispanic-white share, and a median household income of $78,680 describe the county. The county's voting pattern over the last decade is most similar to that of Buena Vista County and Aurora County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Marion County, Iowa. Akashic. https://akashic.app/county/19125/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Marion County, Iowa vote in 2024?
In 2024, Marion County, Iowa voted Republican by 37.6 points (R+37.6), carried by the Republican candidate. Out of 19,566 votes cast, 5,928 went Democratic and 13,289 went Republican.
When did Marion County, Iowa last vote Democratic?
The most recent presidential election in which Marion County, Iowa voted Democratic was 1988.
How many people live in Marion County, Iowa?
Marion County, Iowa has a population of 33,642 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Marion County, Iowa?
Median household income in Marion County, Iowa is $78,680 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Marion County, Iowa?
Akashic tracks 38 presidential elections in Marion County, Iowa from 1876 to 2024. Of those, 13 went Democratic and 20 went Republican.