The value of all farms, ranches, and rural real estate for sale in Harding County, South Dakota, recently was $10 million, representing a total of 9,177 acres of land for sale in Harding County. Harding County ranks 44th based on the total acres of land for sale of the 66 counties in the Mount Rushmore State. Of all farms, ranches, hunting land and other land for sale in Harding County, Camp Crook had the most land for sale. Harding County has a large agricultural economy, with 250 farms recorded in the county during the latest 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 the state.