Mercer County is in Western Illinois. Of the 102 counties in the Prairie State, Mercer County ranks 44th in terms of size (568 square miles). There is around 1,000 acres of recreational land and property for sale in Illinois's Mercer County based on recent Land Network data. The combined market value of farms and rural land for sale here is nearly $1 million. The average price of recreational acreage for sale in Mercer County was $399,166. Browse all recreational property for sale in Illinois to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development.