Brookings County, South Dakota

Brookings County
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 44°22′N 96°47′W / 44.37°N 96.79°W / 44.37; -96.79
Country United States
State South Dakota
Founded1862 (created)
July 3, 1871 (organized)
Named afterWilmot Wood Brookings
SeatBrookings
Largest cityBrookings
Area
  Total
805 sq mi (2,080 km2)
  Land792 sq mi (2,050 km2)
  Water13 sq mi (30 km2)  1.6%
Population
 (2020)
  Total
34,375
  Estimate 
(2024)
36,359
  Density43/sq mi (16/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitewww.brookingscountysd.gov

Brookings County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 34,375, making it the fifth most populous county in South Dakota. Its county seat is Brookings. The county was created in 1862 and organized in 1871.

Brookings County comprises the Brookings, SD Micropolitan Statistical Area. It is also the location of South Dakota State University.