Mercer County is in Western Illinois. Of the 102 counties in the state, Mercer County is 44th in terms of its size (363,963 acres). The total value of 1,000 acres of undeveloped land recently listed for sale in Illinois's Mercer County was about $3 million. The average price of undeveloped acreage for sale in Mercer County was $2 million. Some suggested uses for undeveloped land currently for sale in Mercer County include for commercial, hunting/fishing, and agriculture use. Some common wildlife species to be found on undeveloped land for sale in Mercer County include whitetail deer, turkey, deer, dove and ducks. Current commercial applications for commercial property for sale in Mercer 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.