Iowa·IA·FIPS 19075

Grundy County

Voted Republican in 2024 · 7,202 votes cast

About Grundy County

Grundy County is a county located in the U.S. state of Iowa. At the 2020 census, the population was 12,329, and was estimated to be 12,361 in 2025. The county seat and the largest city is Grundy Center. The county is named for Felix Grundy, former U.S. Attorney General.

2024 Presidential Results

All candidates · Grundy County, Iowa

Donald J Trump(Republican)

138.8%9,996

Won by 5,958 votes

Kamala D Harris(Democrat)

56.1%4,038

Overvotes(Other)

4.5%324

Chase Oliver(Libertarian)

0.6%46

Margin History

Red = Republican, Blue = Democratic

2024R+41.4

2020R+37.6

2016R+38.9

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Swung Right in 2024

Grundy County shifted 3.7 points toward Republicans compared to 2020. Voter turnout decreased by 1.0%.

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No one has claimed Grundy County yet

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Grundy County — Local Discussion

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Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)