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.

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Facts from Wikidata (CC0). Image by Harry Weddington, U.S. Army Corps of Engineers via Wikimedia Commons (Public domain).

Buffalo County

county in South Dakota, United States

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About Buffalo County

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Country: United States

Facts from Wikidata (CC0). Image by Harry Weddington, U.S. Army Corps of Engineers via Wikimedia Commons (Public domain).

Inception

1873

Website

https://gannvalley.com/buffalo-county-1

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Not who you're looking for? Others named Buffalo County: county in Nebraska, United States · county in Wisconsin, United States

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