Aurora County, South Dakota

Aurora County
Aurora County courthouse in Plankinton
Location within the U.S. state of South Dakota
South Dakota's location within the U.S.
Coordinates: 43°43′N 98°34′W / 43.72°N 98.57°W / 43.72; -98.57
Country United States
State South Dakota
Founded1879 (created)
1881 (organized)
Named afterAurora, a Roman goddess
SeatPlankinton
Largest cityPlankinton
Area
  Total
713 sq mi (1,850 km2)
  Land708 sq mi (1,830 km2)
  Water4.3 sq mi (11 km2)  0.6%
Population
 (2020)
  Total
2,747
  Estimate 
(2024)
2,752
  Density3.9/sq mi (1.5/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districtAt-large

Aurora County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 2,747. The county was created in 1879, and was organized in 1881.