McHenry County is in Northern Illinois. Of the 102 counties in the Inland Empire, 611-square-mile McHenry County ranks 36th by size. There is approximately 1,000 acres of undeveloped land for sale in McHenry County, Illinois, based on recent Land Network data. The combined market value of farms, rural land, hunting land and other land for sale here is about $49 million. The average price of undeveloped acreage for sale in McHenry County was $230,520. Some suggested uses for undeveloped land currently for sale in McHenry County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in McHenry County include whitetail deer, turkey, deer, dove and ducks. Current commercial applications for commercial property for sale in McHenry 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.