Hyde County, South Dakota

Hyde County, South Dakota
Hyde County Courthouse in Highmore
Location within the U.S. state of South Dakota
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
 • Density1.47/sq mi (0.566/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.