About Fort Thompson, South Dakota

Fort Thompson is a census-designated place (CDP) in Buffalo County, South Dakota, United States. The population was 1,282 at the 2010 census, making it the largest settlement on the Crow Creek Reservation.

News from Fort Thompson

Fort Thompson Facts

  • Population Total: 1282
  • Square Miles: 10.3
  • Area Code: 605
  • Elevation: 1440
  • Postal Codes: 57339
  • Timezone: North American Central