A total of 1,000 acres were listed for sale in Sweetwater County recently, representing a combined almost $19 million in Sweetwater County farms, ranches, and rural real estate for sale. Sweetwater County ranks 17th in the Equality State for the total number of acres of land currently advertised for sale. Among cities in Sweetwater County with farms, ranches, hunting land and other land for sale, Rock Springs featured the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of Wyoming. Sweetwater County is the largest county in Wyoming (10,491 square miles). It's located in the Southwest Wyoming region of the state.