Spink County is in Glacial Lakes & Prairies South Dakota. Of the 66 counties in the Mount Rushmore State, Spink County ranks 18th in terms of size (966,233 acres). Recent Land Network data shows about 1,000 acres of residential land and property for sale in South Dakota's Spink County, which is valued at a combined $2 million. The average price of residential land for sale in Spink County was $539,750. The economy here is mainly agricultural. Browse all residential land and rural property for sale in South Dakota to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.