Land for sale in Idaho's Adams County recently totaled around $118 million and approximately 9,000 acres. Adams County ranks 19th in the Gem State for the total acreage of land currently advertised for sale. There were four properties listed as sold in Adams County through the Land Network Comparable Sales Program. This represented a total value of $9,805,000. Council had the most land for sale. Government and state-level services are the main economic drivers in Adams County. Adams County is the 22nd largest county (1,369 square miles) in Idaho. It's located in the Southwestern Idaho region of Idaho.