Yankton County, South Dakota is governed by a 5-member governing board. The current county commissioner is Ryan Heine. See all 11 named officeholders and how to reach each office.
Population: 23,635.
Selected officeholders: County Commissioner: Ryan Heine · County Commissioner: Wanda Howey- Fox · County Commissioner: Don Kettering · County Commissioner: Dan Klimisch · County Commissioner: John Marquardt · State's Attorney: Tyler Larsen.