Mercer County is in Great Lakes & Wilds Pennsylvania. Of the 67 counties in the state, Mercer County is 33rd in terms of its size (682 square miles). The total value of almost 1,000 acres of undeveloped land recently listed for sale in Pennsylvania's Mercer County was roughly $3 million. The average price of undeveloped land for sale in Mercer County was $146,473. Some suggested uses for undeveloped land currently for sale in Mercer County include for commercial, hunting/fishing, and homestead use. Some common wildlife species to be found on undeveloped land for sale in Mercer County include bear, deer, turkey, whitetail deer and pheasant. Current commercial applications for commercial property for sale in Mercer County include for commercial, hunting/fishing and homestead use. Browse all Pennsylvania undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.