NULL Of 254 counties in the state, Armstrong County ranks 140th in terms of size (913 square miles). Armstrong County is in Panhandle Texas. A recent survey of Land Network data shows about 10,000 acres of hunting land for sale in Texas's Armstrong County, which is valued at a combined $17 million. Browse all Armstrong County hunting land for sale on the Land Network to find the hunting tract that suits your hunting and outdoor-recreation interests, whether you're an individual looking to invest in hunting land for future use or commercial operation looking for land on which to grow your commercial hunting operation. The most common type of land for sale by combined acreage in Armstrong County is farms.