There was a combined $120 million of land and rural real estate for sale in South Dakota's Custer County recently on Land.com. The total size of all Custer County farms and ranches for sale was around 6,000 acres. Custer County ranks third in the Coyote State based on the total acres of land for sale of the 66 counties in the Mount Rushmore State. There were six properties listed as sold in Custer County through the Land Network Comparable Sales Program. This represented a total value of $605,500. Of all farms, ranches, hunting land and other land for sale in Custer County, Custer featured the most land for sale. Government and state-level services are the main economic drivers in Custer County. Custer County is South Dakota's 16th largest county (1,559 square miles). It's located in the Black Hills & Badlands South Dakota region of the state.