Allegheny County is in Pittsburgh & Countryside Pennsylvania. Of the 67 counties in the Keystone State, Allegheny County ranks 30th in terms of size (476,493 acres). Recent listings of undeveloped land for sale in Pennsylvania's Allegheny County totals almost 1,000 acres and a combined market value of almost $18 million. The most common type of land for sale by combined acreage in Allegheny County is residential property. The average price of undeveloped land for sale in Allegheny County was $840,566. Some suggested uses for undeveloped land currently for sale in Allegheny County include for hunting/fishing, commercial, and homestead use. Some common wildlife species to be found on undeveloped land for sale in Allegheny County include bear, whitetail deer, deer, turkey, blacktail deer and pheasant. Current commercial applications for commercial property for sale in Allegheny 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.