Yankton County, South Dakota

Yankton County
County
Scottish Rite Masonic Center in Yankton.
Scottish Rite Masonic Center in Yankton.
Map of South Dakota highlighting Yankton County
Location within the U.S. state of South Dakota
Map of the United States highlighting South Dakota
South Dakota's location within the U.S.
Coordinates: 43°01′N 97°23′W / 43.01°N 97.39°W / 43.01; -97.39
Country United States
State South Dakota
FoundedApril 10, 1862
Named forYankton Sioux
SeatYankton
Largest cityYankton
Area
 • Total
532 sq mi (1,380 km2)
 • Land521 sq mi (1,350 km2)
 • Water11 sq mi (30 km2)  2.1%
Population
 (2020)
 • Total
23,310
 • Estimate 
(2023)
23,517 Increase
 • Density44/sq mi (17/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional districtAt-large
Websitewww.co.yankton.sd.us
Missouri River in winter downstream from Yankton, with Nebraska below and South Dakota above. This stretch of the river is part of the 59-mile reach of the Missouri National Recreational River.

Yankton County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 23,310, making it the 9th most populous county in South Dakota.[1] Its county seat is Yankton.[2] Yankton County comprises the Yankton, SD Micropolitan Statistical Area.

  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved March 20, 2024.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 9, 2015. Retrieved June 7, 2011.