A total of almost 3,000 acres were listed for sale in South Dakota's Custer County recently, representing a combined around $57 million in Custer County land and rural real estate for sale. Custer County ranks sixth in the Coyote State for the total acreage of land currently advertised for sale. Of all locations in Custer County with farms, ranches, and rural real estate 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 largest county (1,559 square miles) in South Dakota. It's located in the Black Hills & Badlands South Dakota region of the state.