Union County is in Southern Illinois. Of the 102 counties in the Inland Empire, Union County is 71st in terms of its size (422 square miles). Illinois's Union County has about 1,000 acres of commercial land and property for sale based on recent Land Network data. The combined market value of land and rural real estate for sale here was roughly $2 million. The average price of commercial land and property for sale in Union County was $1 million. Some suggested uses for commercial property currently for sale in Union County include for hunting/fishing, commercial, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Union County include whitetail deer, turkey, deer, dove and ducks. Current commercial applications for commercial property for sale in Union County include for hunting/fishing, commercial and agriculture use. Browse all Illinois commercial land and property for sale on the Land Network to find your next commercial property or land investment.