Clay County is in Southern Illinois. Of the 102 counties in the state, 469-square-mile Clay County ranks 60th by size. A recent survey of Land Network data shows 3,000 acres of undeveloped land for sale in Illinois's Clay County, which is valued at a combined $12 million. The average price of undeveloped acreage for sale in Clay County was $2 million. Some suggested uses for undeveloped land currently for sale in Clay County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Clay County include whitetail deer, turkey, deer, ducks and dove. Current commercial applications for commercial property for sale in Clay 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.