Putnam County is in Western Illinois. Of the 102 counties in the Land of Lincoln, 172-square-mile Putnam County ranks 102nd by size. Putnam County, Illinois, includes nearly 1,000 acres of undeveloped land for sale based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here was about $500,000. The average price of undeveloped acreage for sale in Putnam County was $69,048. Some suggested uses for undeveloped land currently for sale in Putnam County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Putnam County include whitetail deer, turkey, deer, dove and ducks. Current commercial applications for commercial property for sale in Putnam County include for commercial, hunting/fishing and agriculture use. Browse all Illinois undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.