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  • City of Yankton

    • Governmental Services
    416 Walnut St.
    Yankton, SD 57078
    (605) 668-5221
    (605) 668-5265 (fax)
    • About

      Yankton is a city in, and the county seat of, Yankton County, South Dakota, United States. The population was 14,454 at the 2010 census. Yankton is the principal city of the Yankton Micropolitan Stati


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