South Yankton is a populated place in Cedar County, Nebraska, United States,[1] located just south of Yankton, South Dakota, on U.S. Route 81.[2] Gavins Point Dam is located four miles west of South Yankton on Nebraska Highway 121.
- ^ U.S. Geological Survey Geographic Names Information System: South Yankton, Nebraska
- ^ "South Yankton Populated Place". NE Hometown Locator. Retrieved February 9, 2012.