A combined approximately 4,000 acres were listed for sale in Custer County recently; the value of all Custer County land and rural real estate for sale was around $86 million. Custer County ranks third out of 66 counties in the Mount Rushmore State for the total number of acres of land currently advertised for sale. There were six properties listed as sold in Custer County through the Land Network Comparable Sales Program. This represented a total value of $2,363,500. Among cities in Custer County with farms and ranches for sale, Custer featured the most land for sale. From an economic perspective, government and state-level services contribute most to Custer County's overall GDP. Custer County is the 16th biggest county (1,559 square miles) in South Dakota. It's located in the Black Hills & Badlands South Dakota region of the state.