Grant County is in Glacial Lakes & Prairies South Dakota. Of the 66 counties in the state, Grant County ranks 48th in terms of size (440,021 acres). Recent listings of residential land for sale in Grant County, South Dakota, totals 1,000 acres and a combined market value of roughly $700,000. The most common type of land for sale by combined acreage in Grant County is homesite. The average price of residential acreage for sale in Grant County was $163,600. 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.