Marion County is in Southern Illinois. Of the 102 counties in the Land of Lincoln, 576-square-mile Marion County ranks 42nd by size. There is approximately 1,000 acres of undeveloped land for sale in Marion County, Illinois, based on recent Land Network data. The combined market value of land for sale here is roughly $600,000. The average price of undeveloped acreage for sale in Marion County was $62,825. Some suggested uses for undeveloped land currently for sale in Marion County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Marion County include whitetail deer, turkey, deer, ducks, dove, quail and waterfowl. Current commercial applications for commercial property for sale in Marion County include for commercial, hunting/fishing and agriculture use. Browse all Illinois undeveloped land for sale on the Land Network to find your next commercial property or land investment.