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Iowa·IA·FIPS 19079
Hamilton County
Voted Republican in 2024 · 7,643 votes cast
About Hamilton County
Hamilton County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 15,039, and was estimated to be 14,944 in 2025. The county seat and the largest city is Webster City. The county was named to honor William W. Hamilton, a President of the Iowa State Senate.
Read more on Wikipedia →Total Votes (2024)
7,643
Winner Margin
R+33.0
Turnout Change
-3.8%
2020→2024 Swing
R+6.1
2024 Presidential Results
All candidates · Hamilton County, Iowa
Donald J Trump(Republican)
130.9%10,008
Won by 5,044 votes
Kamala D Harris(Democrat)
64.9%4,964
Other(Other)
3.4%258
Chase Oliver(Libertarian)
0.7%56
Margin History
Red = Republican, Blue = Democratic
2024R+33.0
2020R+26.9
2016R+22.6
🔴
Swung Right in 2024
Hamilton County shifted 6.1 points toward Republicans compared to 2020. Voter turnout decreased by 3.8%.
What does Hamilton County really think?
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Election data: MIT Election Data Science Lab, Harvard Dataverse (CC BY 4.0)