Mercer County is in Great Lakes & Wilds Pennsylvania. Of the 67 counties in the Independence State, Mercer County is 33rd in terms of its size (682 square miles). There is about 1,000 acres of undeveloped land for sale in Mercer County, Pennsylvania, based on recent Land Network data. The combined market value of farmsand rural real estate for sale here is around $2 million. The average price of undeveloped land for sale in Mercer County was $239,815. Some suggested uses for undeveloped land currently for sale in Mercer County include for hunting/fishing, commercial, and residential single use. Some common wildlife species to be found on undeveloped land for sale in Mercer County include whitetail deer, turkey, bear, geese and ducks. Current commercial applications for commercial property for sale in Mercer County include for hunting/fishing, commercial and residential single use. Browse all Pennsylvania undeveloped land for sale on the Land Network to find your next commercial property or land investment.