Hyde County, South Dakota

Hyde County
Hyde County Courthouse in Highmore
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 44°32′13.826″N 99°28′21.849″W / 44.53717389°N 99.47273583°W / 44.53717389; -99.47273583
Country United States
State South Dakota
Founded1883
Named afterJames Hyde
SeatHighmore
Largest cityHighmore
Area
  Total
866 sq mi (2,240 km2)
  Land861 sq mi (2,230 km2)
  Water5.6 sq mi (15 km2)  0.6%
Population
 (2020)
  Total
1,262
  Estimate 
(2024)
1,215
  Density1.5/sq mi (0.56/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitehydeco.org

Hyde County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 1,262, making it the second-least populous county in South Dakota. Its county seat is Highmore. The county was founded in 1873, as a county of the Dakota Territory, and organized in 1883. It was named for James Hyde, a member of legislature in the 1870s.