Of 66 counties in the Coyote State, Pennington County is third in terms of its size (2 million acres). Pennington County is in the Black Hills & Badlands South Dakota region. Recent listings of residential land for sale in South Dakota's Pennington County totals around 1,000 acres and a combined market value of nearly $50 million. The most common type of land for sale by combined acreage in Pennington County is residential property. The average price of residential acreage for sale in Pennington County was $728,736. 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.