Sioux County, Iowa
AkashicSioux County, IATrumpR+70.7
2024 precinct map of Sioux CountyPrecinct-level 2024 presidential results for Sioux 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 | 84.5% | 16,053 |
|---|---|---|
| Kamala HarrisDemocratic | 13.8% | 2,626 |
| Robert F Kennedy Jr.We The People | 0.6% | 107 |
Harris +50Trump +50
17 precincts · 19,001 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 | 13.8%Harris2,626 | 84.5%Trump16,053 | 0.6%Kennedy107 | 19,001 | ||
| R | 15.8%Biden3,019 | 82.3%Trump15,680 | 0.9%Jorgensen170 | 19,051 | ||
| R | 12.5%Clinton2,300 | 80.7%Trump14,785 | 2.4%Johnson435 | 18,332 | ||
| R | 15.6%Obama2,700 | 83.2%Romney14,407 | 0.4%Johnson76 | 17,308 | ||
| R | 18.2%Obama3,030 | 81.0%McCain13,490 | 0.9%Nader144 | 16,664 | ||
| R | 13.6%Kerry2,259 | 85.9%Bush14,229 | 0.5%Other82 | 16,570 | ||
| R | 14.6%Gore2,148 | 83.3%Bush12,241 | 1.1%Nader156 | 14,692 | ||
| R | 17.0%Clinton2,392 | 77.0%Dole10,864 | 5.1%Perot718 | 14,110 | ||
| R | 15.1%Clinton2,226 | 72.2%Bush10,637 | 12.0%Perot1,771 | 14,730 | ||
| R | 22.0%Dukakis2,923 | 77.3%Bush10,270 | 0.7%Larouche95 | 13,288 | ||
| R | 18.1%Mondale2,585 | 81.6%Reagan11,665 | 0.3%Larouche43 | 14,293 | ||
| R | 19.0%Carter2,698 | 76.0%Reagan10,768 | 4.9%Anderson701 | 14,167 | ||
| R | 25.7%Carter3,322 | 73.0%Ford9,448 | 1.3%McCarthy165 | 12,935 | ||
| R | 20.9%McGovern2,867 | 78.3%Nixon10,721 | 0.8%Schmitz109 | 13,697 | ||
| R | 17.4%Humphrey2,181 | 80.0%Nixon10,010 | 2.5%Wallace316 | 12,507 | ||
| R | 34.4%Johnson4,233 | 65.6%Goldwater8,078 | 0.1%Hass12 | 12,323 | ||
| R | 20.4%Kennedy2,643 | 79.5%Nixon10,284 | 0.1%Byrd7 | 12,934 | ||
| R | 21.6%Stevenson2,666 | 78.3%Eisenhower9,651 | 0.1%Andrews11 | 12,328 | ||
| R | 16.6%Stevenson2,050 | 83.2%Eisenhower10,275 | 0.2%Hallinan24 | 12,349 | ||
| R | 41.2%Truman4,042 | 57.1%Dewey5,597 | 1.7%Thurmond162 | 9,801 | ||
| R | 33.9%Roosevelt3,369 | 65.9%Dewey6,552 | 0.2%Thomas19 | 9,940 | ||
| R | 35.3%Roosevelt4,144 | 64.6%Willkie7,585 | 0.2%Thomas21 | 11,750 | ||
| D | 52.0%Roosevelt5,553 | 42.6%Landon4,543 | 5.4%Lemke573 | 10,669 | ||
| D | 60.5%Roosevelt6,170 | 38.6%Hoover3,943 | 0.9%Thomas89 | 10,202 | ||
| R | 30.7%Smith2,839 | 69.0%Hoover6,378 | 0.3%Thomas31 | 9,248 | ||
| R | 10.7%Davis900 | 58.9%Coolidge4,960 | 30.4%La Follette2,560 | 8,420 | ||
| R | 19.7%Cox1,510 | 79.3%Harding6,068 | 1.0%Debs75 | 7,653 | ||
| R | 47.0%Wilson2,049 | 51.9%Hughes2,261 | 1.1%Benson47 | 4,357 | ||
| O | 31.2%Wilson1,453 | 12.3%Taft575 | 56.5%Roosevelt2,636 | 4,664 | ||
| R | 40.7%Bryan1,891 | 58.1%Taft2,697 | 1.2%Debs54 | 4,642 | ||
| R | 27.2%Parker1,151 | 70.8%Roosevelt2,992 | 1.9%Debs81 | 4,224 | ||
| R | 36.9%Bryan1,809 | 61.7%McKinley3,025 | 1.4%Woolley69 | 4,903 | ||
| R | 39.4%Bryan1,898 | 59.0%McKinley2,841 | 1.6%Palmer75 | 4,814 | ||
| R | 45.7%Cleveland1,792 | 51.6%Harrison2,021 | 2.7%Weaver107 | 3,920 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −5.8% |
| 1896 | −19.6% |
| 1900 | −24.8% |
| 1904 | −43.6% |
| 1908 | −17.4% |
| 1912 | +18.8% |
| 1916 | −4.9% |
| 1920 | −59.6% |
| 1924 | −48.2% |
| 1928 | −38.3% |
| 1932 | +21.8% |
| 1936 | +9.5% |
| 1940 | −29.3% |
| 1944 | −32.0% |
| 1948 | −15.9% |
| 1952 | −66.6% |
| 1956 | −56.7% |
| 1960 | −59.1% |
| 1964 | −31.2% |
| 1968 | −62.6% |
| 1972 | −57.3% |
| 1976 | −47.4% |
| 1980 | −57.0% |
| 1984 | −63.5% |
| 1988 | −55.3% |
| 1992 | −57.1% |
| 1996 | −60.0% |
| 2000 | −68.7% |
| 2004 | −72.2% |
| 2008 | −62.8% |
| 2012 | −67.6% |
| 2016 | −68.1% |
| 2020 | −66.5% |
| 2024 | −70.7% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 21,098 | 1,990 | 14,992 | 4,113 | 3 |
| 2010 | 20,010 | 1,787 | 14,613 | 3,605 | 5 |
| 2012 | 20,670 | 1,757 | 14,909 | 3,992 | 12 |
| 2014 | 21,179 | 1,769 | 14,988 | 4,399 | 23 |
| 2016 | 21,848 | 1,831 | 15,758 | 4,200 | 59 |
| 2018 | 22,246 | 1,893 | 15,859 | 4,414 | 80 |
| 2020 | 23,049 | 2,245 | 16,556 | 4,145 | 103 |
| 2022 | 23,350 | 2,124 | 16,617 | 4,503 | 106 |
| 2024 | 23,760 | 1,995 | 16,740 | 4,907 | 118 |
Source: Iowa Secretary of State
Sioux County's 2024 presidential margin of R+70.7 ranks among the widest in Iowa, reflecting a densely Reformed Dutch Protestant community in the northwest corner of the state where cultural homogeneity translates into unusually consistent electoral outcomes.
Across the recorded series it reached a Democratic high of 21.8 points in 1932 and a Republican high of 72.2 points in 2004. Between 2020 and 2024 the county moved 4.2 points toward the Republican candidate; the 2024 margin was 70.7 points.
A population of 36,212, a 83% non-Hispanic-white share, and a median household income of $86,098 describe the county. The county's voting pattern over the last decade is most similar to that of Buffalo County and Hansford County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Sioux County, Iowa. Akashic. https://akashic.app/county/19167/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Sioux County, Iowa vote in 2024?
In 2024, Sioux County, Iowa voted Republican by 70.7 points (R+70.7), carried by the Republican candidate. Out of 19,001 votes cast, 2,626 went Democratic and 16,053 went Republican.
When did Sioux County, Iowa last vote Democratic?
The most recent presidential election in which Sioux County, Iowa voted Democratic was 1936.
How many people live in Sioux County, Iowa?
Sioux County, Iowa has a population of 36,212 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Sioux County, Iowa?
Median household income in Sioux County, Iowa is $86,098 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Sioux County, Iowa?
Akashic tracks 38 presidential elections in Sioux County, Iowa from 1876 to 2024. Of those, 2 went Democratic and 31 went Republican.