South Dakota·SD·FIPS 46017

Buffalo County

Voted Democratic in 2024 · 466 votes cast

About Buffalo County

Buffalo County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 1,948. Its county seat is Gann Valley which, at 10 people, is the least populous county seat in the United States. The county was created in 1864, and was organized in 1871 as part of the Dakota Territory.

2024 Presidential Results

All candidates · Buffalo County, South Dakota

Kamala D Harris(Democrat)

62.4%291

Won by 127 votes

Donald J Trump(Republican)

35.2%164

Other(Other)

1.9%9

Chase Oliver(Libertarian)

0.4%2

Margin History

Red = Republican, Blue = Democratic

2024D+27.3

2020D+30.8

2016D+25.5

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Swung Right in 2024

Buffalo County shifted 3.5 points toward Republicans compared to 2020. Voter turnout decreased by 15.1%.

Buffalo County — Local Discussion

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What does Buffalo County really think?

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