Williamson County is in Southern Illinois. Of the 102 counties in the Prairie State, Williamson County ranks 65th in terms of size (444 square miles). Williamson County, Illinois, has approximately 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 approximately $16 million. The average price of commercial land and property for sale in Williamson County was $1 million. Some suggested uses for commercial property currently for sale in Williamson County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Williamson County include whitetail deer, turkey, deer, ducks and dove. Current commercial applications for commercial property for sale in Williamson County include for commercial, hunting/fishing 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.