Yankton County, South Dakota

Yankton County is a county in South Dakota with an estimated population of 23,517 in 2023. 2 cities, towns and Census places in it are indexed here.

Largest places in Yankton County

About Yankton County

Yankton County is one of the counties of South Dakota. County governments in South Dakota handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.