Union County is in Alleghenies & Valleys Pennsylvania. Of the 67 counties in the state, Union County is 64th in terms of its size (203,358 acres). The total value of approximately 1,000 acres of undeveloped land recently listed for sale in Union County, Pennsylvania, was about $1 million. The average price of undeveloped land for sale in Union County was $510,000. Some suggested uses for undeveloped land currently for sale in Union County include for commercial, hunting/fishing, and homestead use. Some common wildlife species to be found on undeveloped land for sale in Union County include bear, deer, turkey, whitetail deer and pheasant. Current commercial applications for commercial property for sale in Union 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.