Butte County, South Dakota

Butte County, South Dakota
Butte County Courthouse
Location within the U.S. state of South Dakota
Coordinates: 44°55′N 103°29′W / 44.91°N 103.49°W / 44.91; -103.49
Country United States
State South Dakota
FoundedMarch 2, 1883
May 6, 1883
Named afterHills in the county
SeatBelle Fourche
Largest cityBelle Fourche
Area
 • Total
2,266 sq mi (5,870 km2)
 • Land2,250 sq mi (5,800 km2)
 • Water16 sq mi (41 km2)  0.7%
Population
 (2020)
 • Total
10,243
 • Estimate 
(2024)
10,891
 • Density4.55/sq mi (1.76/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional districtAt-large
Websitebutte.sdcounties.org

Butte County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 10,243. Its county seat is Belle Fourche. The county was established in the Dakota Territory on March 2, 1883, and given the descriptive name based on the French word for a hill.