Clay County is in Southern Illinois. Of the 102 counties in the Land of Lincoln, Clay County ranks 60th in terms of size (469 square miles). Recent listings of undeveloped land for sale in Clay County, Illinois, totals almost 3,000 acres and a combined market value of around $13 million. The most common type of land for sale by combined acreage in Clay County is house. The average price of undeveloped land for sale in Clay County was $2 million. Some suggested uses for undeveloped land currently for sale in Clay County include for hunting/fishing, commercial, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Clay County include whitetail deer, turkey, deer, dove and ducks. Current commercial applications for commercial property for sale in Clay County include for hunting/fishing, commercial and agriculture use. Browse all Illinois undeveloped land for sale on the Land Network to find your next commercial property or land investment.