Grundy County, Iowa
AkashicGrundy County, IATrumpR+41.7
2024 precinct map of Grundy CountyPrecinct-level 2024 presidential results for Grundy 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% | 4,998 |
|---|---|---|
| Kamala HarrisDemocratic | 28.3% | 2,019 |
| Robert F Kennedy Jr.We The People | 1.2% | 84 |
Harris +50Trump +50
7 precincts · 7,146 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 | 28.3%Harris2,019 | 69.9%Trump4,998 | 1.2%Kennedy84 | 7,146 | ||
| R | 30.3%Biden2,206 | 67.7%Trump4,929 | 1.2%Jorgensen87 | 7,276 | ||
| R | 26.7%Clinton1,856 | 65.2%Trump4,527 | 3.4%Johnson233 | 6,944 | ||
| R | 37.8%Obama2,635 | 60.5%Romney4,215 | 0.5%Johnson33 | 6,962 | ||
| R | 40.9%Obama2,790 | 57.8%McCain3,945 | 1.4%Nader93 | 6,828 | ||
| R | 34.8%Kerry2,386 | 64.7%Bush4,429 | 0.5%Other34 | 6,849 | ||
| R | 35.0%Gore2,139 | 63.0%Bush3,851 | 1.1%Nader70 | 6,111 | ||
| R | 40.8%Clinton2,322 | 51.5%Dole2,928 | 7.1%Perot401 | 5,687 | ||
| R | 30.8%Clinton1,895 | 51.3%Bush3,160 | 17.4%Perot1,069 | 6,156 | ||
| R | 38.9%Dukakis2,211 | 60.4%Bush3,433 | 0.7%Larouche38 | 5,682 | ||
| R | 29.4%Mondale1,915 | 69.5%Reagan4,527 | 1.2%Larouche76 | 6,518 | ||
| R | 26.6%Carter1,869 | 66.1%Reagan4,644 | 7.3%Anderson513 | 7,026 | ||
| R | 36.2%Carter2,410 | 62.7%Ford4,173 | 1.2%McCarthy77 | 6,660 | ||
| R | 27.8%McGovern1,844 | 71.0%Nixon4,706 | 1.1%Schmitz75 | 6,625 | ||
| R | 24.5%Humphrey1,675 | 71.1%Nixon4,866 | 4.4%Wallace299 | 6,840 | ||
| D | 52.6%Johnson3,582 | 47.2%Goldwater3,215 | 0.2%Hass11 | 6,808 | ||
| R | 30.3%Kennedy2,174 | 69.6%Nixon4,989 | 0.0%Byrd3 | 7,166 | ||
| R | 27.9%Stevenson1,908 | 72.0%Eisenhower4,915 | 0.1%Andrews4 | 6,827 | ||
| R | 20.7%Stevenson1,483 | 79.0%Eisenhower5,652 | 0.3%Hallinan21 | 7,156 | ||
| R | 41.5%Truman2,344 | 55.9%Dewey3,154 | 2.6%Thurmond149 | 5,647 | ||
| R | 37.6%Roosevelt2,191 | 62.1%Dewey3,625 | 0.3%Thomas18 | 5,834 | ||
| R | 41.1%Roosevelt2,745 | 58.6%Willkie3,908 | 0.3%Thomas21 | 6,674 | ||
| D | 58.5%Roosevelt3,918 | 39.6%Landon2,656 | 1.9%Lemke129 | 6,703 | ||
| D | 59.7%Roosevelt3,661 | 39.4%Hoover2,419 | 0.9%Thomas54 | 6,134 | ||
| R | 30.5%Smith1,620 | 69.0%Hoover3,671 | 0.5%Thomas27 | 5,318 | ||
| R | 10.7%Davis615 | 57.8%Coolidge3,322 | 31.4%La Follette1,806 | 5,743 | ||
| R | 13.1%Cox714 | 85.8%Harding4,662 | 1.0%Debs56 | 5,432 | ||
| R | 32.1%Wilson1,015 | 67.2%Hughes2,127 | 0.7%Benson22 | 3,164 | ||
| O | 37.1%Wilson1,149 | 13.6%Taft421 | 49.3%Roosevelt1,525 | 3,095 | ||
| R | 36.7%Bryan1,105 | 61.8%Taft1,861 | 1.6%Debs47 | 3,013 | ||
| R | 30.9%Parker938 | 66.5%Roosevelt2,021 | 2.6%Debs78 | 3,037 | ||
| R | 36.7%Bryan1,203 | 61.8%McKinley2,025 | 1.5%Woolley49 | 3,277 | ||
| R | 38.4%Bryan1,206 | 60.4%McKinley1,894 | 1.2%Palmer38 | 3,138 | ||
| R | 47.7%Cleveland1,355 | 48.4%Harrison1,375 | 3.9%Weaver112 | 2,842 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −0.7% |
| 1896 | −21.9% |
| 1900 | −25.1% |
| 1904 | −35.7% |
| 1908 | −25.1% |
| 1912 | +23.5% |
| 1916 | −35.1% |
| 1920 | −72.7% |
| 1924 | −47.1% |
| 1928 | −38.6% |
| 1932 | +20.2% |
| 1936 | +18.8% |
| 1940 | −17.4% |
| 1944 | −24.6% |
| 1948 | −14.3% |
| 1952 | −58.3% |
| 1956 | −44.0% |
| 1960 | −39.3% |
| 1964 | +5.4% |
| 1968 | −46.7% |
| 1972 | −43.2% |
| 1976 | −26.5% |
| 1980 | −39.5% |
| 1984 | −40.1% |
| 1988 | −21.5% |
| 1992 | −20.5% |
| 1996 | −10.7% |
| 2000 | −28.0% |
| 2004 | −29.8% |
| 2008 | −16.9% |
| 2012 | −22.7% |
| 2016 | −38.5% |
| 2020 | −37.4% |
| 2024 | −41.7% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2008 | 9,085 | 1,721 | 4,113 | 3,250 | 1 |
| 2010 | 9,044 | 1,631 | 4,119 | 3,288 | 6 |
| 2012 | 9,088 | 1,562 | 4,268 | 3,246 | 12 |
| 2014 | 8,970 | 1,487 | 4,180 | 3,286 | 17 |
| 2016 | 9,055 | 1,493 | 4,251 | 3,285 | 26 |
| 2018 | 8,926 | 1,493 | 4,082 | 3,300 | 51 |
| 2020 | 9,067 | 1,767 | 4,475 | 2,773 | 52 |
| 2022 | 9,098 | 1,649 | 4,545 | 2,851 | 53 |
| 2024 | 9,134 | 1,496 | 4,699 | 2,869 | 70 |
Source: Iowa Secretary of State
Grundy County's flat, productive farmland anchors an electorate that has shifted decisively rightward over two decades, delivering R+41.7 in 2024 — among the widest presidential margins of any county in the state.
Across the recorded series it reached a Democratic high of 23.5 points in 1912 and a Republican high of 72.7 points in 1920. Between 2020 and 2024 the county moved 4.3 points toward the Republican candidate; the 2024 margin was 41.7 points.
A population of 12,384, a 95% non-Hispanic-white share, and a median household income of $87,205 describe the county. The county's voting pattern over the last decade is most similar to that of Dickey County and Jasper County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Grundy County, Iowa. Akashic. https://akashic.app/county/19075/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Grundy County, Iowa vote in 2024?
In 2024, Grundy County, Iowa voted Republican by 41.7 points (R+41.7), carried by the Republican candidate. Out of 7,146 votes cast, 2,019 went Democratic and 4,998 went Republican.
When did Grundy County, Iowa last vote Democratic?
The most recent presidential election in which Grundy County, Iowa voted Democratic was 1964.
How many people live in Grundy County, Iowa?
Grundy County, Iowa has a population of 12,384 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Grundy County, Iowa?
Median household income in Grundy County, Iowa is $87,205 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Grundy County, Iowa?
Akashic tracks 38 presidential elections in Grundy County, Iowa from 1876 to 2024. Of those, 3 went Democratic and 30 went Republican.