Land for sale in Iowa's Adams County recently totaled approximately $46 million and approximately 2,000 acres. Adams County ranks 84th in the state for the total acreage of land currently advertised for sale. Of all locations in Adams County with land for sale, Corning featured the most land for sale. Manufacturing and related services are the largest economic sectors in Adams County. Adams County is Iowa's 92nd largest county (425 square miles). It's located in the Western Iowa region of the state.