Iowa·IA·FIPS 19043

Clayton County

Voted Republican in 2024 · 9,461 votes cast

About Clayton County

Clayton County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,043, and was estimated to be 16,845 in 2025. The county seat is Elkader and the largest city is Guttenberg.

2024 Presidential Results

All candidates · Clayton County, Iowa

Donald J Trump(Republican)

132.2%12,510

Won by 6,476 votes

Kamala D Harris(Democrat)

63.8%6,034

Undervotes(Other)

3.3%310

Chase Oliver(Libertarian)

0.7%68

Margin History

Red = Republican, Blue = Democratic

2024R+34.2

2020R+29.0

2016R+22.8

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Swung Right in 2024

Clayton County shifted 5.3 points toward Republicans compared to 2020. Voter turnout decreased by 1.4%.

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No one has claimed Clayton County yet

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Clayton County — Local Discussion

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