Winnebago County is in Northern Illinois. Of the 102 counties in the Inland Empire, 519-square-mile Winnebago County ranks 52nd by size. Recent listings of undeveloped land for sale in Illinois's Winnebago County totals 1,000 acres and a combined market value of around $14 million. By overall acreage, residential property is the most common type of land for sale in Winnebago County. The average price of undeveloped land for sale in Winnebago County was $286,284. 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 land for sale on the Land Network to find your next commercial property or land investment.