Buffalo County, South Dakota

Buffalo County is a county located in the U.S. state of South Dakota. As of the 2020 census, 1,948 people lived there.[1] Its county seat is Gann Valley[2] which, at 10 people, is the least populous county seat in the United States. It was created in 1864.[3] as part of the Dakota Territory.

Buffalo County, South Dakota
Map
Map of South Dakota highlighting Buffalo County
Location in the state of South Dakota
Map of the USA highlighting South Dakota
South Dakota's location in the U.S.
Statistics
Founded 1864 (created)
1871 (organized)
Seat Gann Valley
Largest community Fort Thompson
Area
 - Total
 - Land
 - Water

488 sq mi (1,264 km²)
471 sq mi (1,220 km²)
16 sq mi (41 km²), 3.4
Population
 -  Density


Time zone Central: UTC-6/-5
Named for: American buffalo

References

  1. "QuickFacts: Buffalo County, South Dakota". United States Census Bureau. Retrieved January 20, 2024.
  2. National Association of Counties. "NACo County Explorer". Retrieved January 20, 2024.
  3. "Dakota Territory, South Dakota, and North Dakota: Individual County Chronologies". Dakota Territory Atlas of Historical County Boundaries. The Newberry Library. 2006. Archived from the original on April 2, 2018. Retrieved March 28, 2015.