A total of approximately 10,000 acres were listed for sale in Harding County recently, representing a combined nearly $10 million in Harding County land and rural real estate for sale. Harding County ranks 44th in the state based on the total acres of land for sale among the 66 counties in the Mount Rushmore State. Among cities in Harding County with land and rural real estate for sale, Camp Crook had the most land for sale. Agriculture and farming drives the Harding County economy, with 250 farms recorded in the county during the U.S. Census in 2012. 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.