Land for sale in Harding County recently totaled $10 million and almost 10,000 acres. Harding County ranks 44th in South Dakota based on the total amount of acres of land for sale among the 66 counties in the Mount Rushmore State. Of all locations in Harding County with ranches, farms, hunting land and other rural land and acreage for sale, Camp Crook featured the most land for sale. Its economy is defined as agricultural, with 250 farms recorded in the county during the most recent U.S. Census. Farming activities in Harding County generate annual revenues of $3 million, the majority of which comes from livestock products. Harding County is one of the ten biggest counties in South Dakota (2,678 square miles). It's located in the Black Hills & Badlands South Dakota region of South Dakota.