Mercer County is in Great Lakes & Wilds Pennsylvania. Of the 67 counties in the Keystone State, Mercer County is 33rd in terms of its size (682 square miles). Recent listings of undeveloped land for sale in Pennsylvania's Mercer County totals nearly 1,000 acres and a combined market value of nearly $2 million. The most common type of land for sale by combined acreage in Mercer County is residential property. The average price of undeveloped acreage for sale in Mercer County was $231,016. Some suggested uses for undeveloped land currently for sale in Mercer County include for hunting/fishing, commercial, and homestead use. Some common wildlife species to be found on undeveloped land for sale in Mercer County include bear, whitetail deer, deer, turkey, blacktail deer and pheasant. Current commercial applications for commercial property for sale in Mercer County include for hunting/fishing, commercial and homestead use. Browse all Pennsylvania undeveloped acreage for sale on the Land Network to find your next commercial property or land investment.