Winnebago County is in Northern Illinois. Of the 102 counties in the Land of Lincoln, 519-square-mile Winnebago County ranks 52nd by size. Illinois's Winnebago County includes almost 2,000 acres of undeveloped land for sale based on recent Land Network data. The combined market value of farmsand rural real estate for sale here was approximately $40 million. The average price of undeveloped acreage for sale in Winnebago County was $715,623. Some suggested uses for undeveloped land currently for sale in Winnebago County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Winnebago County include whitetail deer, turkey, deer, ducks and dove. Current commercial applications for commercial property for sale in Winnebago 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.