Yankton County, South Dakota, United States
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- Yankton County
- County
- Located in southeastern South Dakota, along the Missouri River and the boundary with Nebraska, 137 km (85 mi) southwest of Sioux Falls; County Seat: Yankton.
- Created and organized in 1862 and named for the Yankton Tribe of the Sioux Indians. Yankton is a corruption of the Sioux word "Ihanktonwan" meaning "end village". (SD-T17/p35)
- 43.049995143° 02' 60.0"N-97.383670797° 23' 01.2"W
- 19,252
- 355 m
- 284330950
- Updated May 7, 2020