Shelby County, Iowa
AkashicShelby County, IATrumpR+42.9
2024 precinct map of Shelby CountyPrecinct-level 2024 presidential results for Shelby 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 | 70.7% | 4,600 |
|---|---|---|
| Kamala HarrisDemocratic | 27.8% | 1,811 |
| Robert F Kennedy Jr.We The People | 0.8% | 49 |
Harris +50Trump +50
11 precincts · 6,505 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 | 27.8%Harris1,811 | 70.7%Trump4,600 | 0.8%Kennedy49 | 6,505 | ||
| R | 28.8%Biden1,959 | 69.1%Trump4,697 | 1.2%Jorgensen83 | 6,795 | ||
| R | 25.8%Clinton1,662 | 67.6%Trump4,362 | 2.7%Johnson174 | 6,448 | ||
| R | 38.1%Obama2,469 | 60.3%Romney3,911 | 0.9%Johnson56 | 6,483 | ||
| R | 44.4%Obama2,863 | 54.1%McCain3,488 | 1.6%Nader102 | 6,453 | ||
| R | 35.3%Kerry2,355 | 63.8%Bush4,256 | 0.9%Other59 | 6,670 | ||
| R | 36.3%Gore2,179 | 60.8%Bush3,655 | 1.9%Nader113 | 6,009 | ||
| R | 36.6%Clinton2,176 | 51.4%Dole3,056 | 11.0%Perot652 | 5,941 | ||
| R | 32.0%Clinton2,094 | 42.9%Bush2,809 | 24.7%Perot1,614 | 6,544 | ||
| R | 47.9%Dukakis2,806 | 51.5%Bush3,019 | 0.6%Larouche35 | 5,860 | ||
| R | 35.0%Mondale2,291 | 64.2%Reagan4,200 | 0.7%Larouche46 | 6,537 | ||
| R | 29.2%Carter1,892 | 64.0%Reagan4,147 | 6.8%Anderson438 | 6,477 | ||
| R | 45.5%Carter2,851 | 52.7%Ford3,301 | 1.7%McCarthy109 | 6,261 | ||
| R | 35.1%McGovern2,259 | 62.9%Nixon4,052 | 2.0%Schmitz128 | 6,439 | ||
| R | 35.7%Humphrey2,365 | 58.6%Nixon3,886 | 5.7%Wallace375 | 6,626 | ||
| D | 58.1%Johnson4,148 | 41.0%Goldwater2,928 | 0.9%Hass61 | 7,137 | ||
| R | 44.8%Kennedy3,427 | 55.1%Nixon4,210 | 0.1%Byrd7 | 7,644 | ||
| R | 42.3%Stevenson3,300 | 56.8%Eisenhower4,425 | 0.9%Andrews68 | 7,793 | ||
| R | 34.8%Stevenson2,762 | 64.7%Eisenhower5,135 | 0.5%Hallinan42 | 7,939 | ||
| D | 50.5%Truman3,499 | 47.6%Dewey3,301 | 1.9%Thurmond135 | 6,935 | ||
| R | 43.0%Roosevelt2,978 | 55.9%Dewey3,873 | 1.2%Thomas82 | 6,933 | ||
| R | 45.0%Roosevelt3,811 | 54.5%Willkie4,613 | 0.4%Thomas36 | 8,460 | ||
| D | 51.8%Roosevelt4,264 | 42.4%Landon3,490 | 5.8%Lemke477 | 8,231 | ||
| D | 65.5%Roosevelt4,940 | 32.9%Hoover2,478 | 1.6%Thomas122 | 7,540 | ||
| D | 50.9%Smith3,604 | 48.8%Hoover3,459 | 0.3%Thomas18 | 7,081 | ||
| R | 33.9%Davis2,297 | 48.0%Coolidge3,252 | 18.2%La Follette1,231 | 6,780 | ||
| R | 28.7%Cox1,882 | 70.5%Harding4,621 | 0.7%Debs47 | 6,550 | ||
| D | 51.6%Wilson2,060 | 47.5%Hughes1,898 | 1.0%Benson38 | 3,996 | ||
| D | 47.8%Wilson1,841 | 22.6%Taft872 | 29.6%Roosevelt1,140 | 3,853 | ||
| R | 48.4%Bryan1,935 | 49.3%Taft1,973 | 2.3%Debs91 | 3,999 | ||
| R | 39.6%Parker1,584 | 57.7%Roosevelt2,310 | 2.7%Debs110 | 4,004 | ||
| R | 47.4%Bryan2,010 | 51.5%McKinley2,182 | 1.1%Woolley47 | 4,239 | ||
| D | 51.6%Bryan2,175 | 47.9%McKinley2,019 | 0.6%Palmer25 | 4,219 | ||
| D | 50.1%Cleveland1,890 | 44.4%Harrison1,674 | 5.4%Weaver205 | 3,769 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | +5.7% |
| 1896 | +3.7% |
| 1900 | −4.1% |
| 1904 | −18.1% |
| 1908 | −1.0% |
| 1912 | +25.1% |
| 1916 | +4.1% |
| 1920 | −41.8% |
| 1924 | −14.1% |
| 1928 | +2.0% |
| 1932 | +32.7% |
| 1936 | +9.4% |
| 1940 | −9.5% |
| 1944 | −12.9% |
| 1948 | +2.9% |
| 1952 | −29.9% |
| 1956 | −14.4% |
| 1960 | −10.2% |
| 1964 | +17.1% |
| 1968 | −23.0% |
| 1972 | −27.8% |
| 1976 | −7.2% |
| 1980 | −34.8% |
| 1984 | −29.2% |
| 1988 | −3.6% |
| 1992 | −10.9% |
| 1996 | −14.8% |
| 2000 | −24.6% |
| 2004 | −28.5% |
| 2008 | −9.7% |
| 2012 | −22.2% |
| 2016 | −41.9% |
| 2020 | −40.3% |
| 2024 | −42.9% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 9,484 | 2,672 | 3,268 | 3,542 | 2 |
| 2010 | 9,591 | 2,546 | 3,392 | 3,651 | 2 |
| 2012 | 9,234 | 2,201 | 3,844 | 3,183 | 6 |
| 2014 | 9,096 | 2,051 | 3,831 | 3,205 | 9 |
| 2016 | 8,271 | 1,852 | 3,707 | 2,692 | 20 |
| 2018 | 8,368 | 1,813 | 3,719 | 2,800 | 36 |
| 2020 | 8,696 | 1,935 | 4,146 | 2,566 | 49 |
| 2022 | 8,726 | 1,744 | 4,398 | 2,531 | 53 |
| 2024 | 8,685 | 1,561 | 4,538 | 2,516 | 70 |
Source: Iowa Secretary of State
Shelby County's 2024 presidential margin of R+42.9 reflects a broader rural Iowa realignment; its small, agriculture-rooted population has shifted decisively toward Republican candidates across multiple election cycles.
Across the recorded series it reached a Democratic high of 32.7 points in 1932 and a Republican high of 42.9 points in 2024. Between 2020 and 2024 the county moved 2.6 points toward the Republican candidate; the 2024 margin was 42.9 points.
A population of 11,778, a 91% non-Hispanic-white share, and a median household income of $72,738 describe the county. The county's voting pattern over the last decade is most similar to that of Johnson County and Greeley County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Shelby County, Iowa. Akashic. https://akashic.app/county/19165/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Shelby County, Iowa vote in 2024?
In 2024, Shelby County, Iowa voted Republican by 42.9 points (R+42.9), carried by the Republican candidate. Out of 6,505 votes cast, 1,811 went Democratic and 4,600 went Republican.
When did Shelby County, Iowa last vote Democratic?
The most recent presidential election in which Shelby County, Iowa voted Democratic was 1964.
How many people live in Shelby County, Iowa?
Shelby County, Iowa has a population of 11,778 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Shelby County, Iowa?
Median household income in Shelby County, Iowa is $72,738 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Shelby County, Iowa?
Akashic tracks 38 presidential elections in Shelby County, Iowa from 1876 to 2024. Of those, 9 went Democratic and 25 went Republican.