A total of almost 1,000 acres were listed for sale in Mercer County recently, representing a combined nearly $4 million in Mercer County farms, hunting land and other rural land and acreage for sale. Mercer County ranks 75th out of 102 counties in the Inland Empire for the combined amount of land currently advertised for sale. There were two properties listed as sold in Mercer County through the Land Network Comparable Sales Program. This represented a total value of $320,010. Among cities in Mercer County with farms and rural land for sale, Aledo featured the most land for sale. Mercer County is the 44th largest county (568 square miles) in Illinois. It's located in the Western Illinois region of the state.