Armstrong County is in Pittsburgh & Countryside Pennsylvania. Of the 67 counties in the Independence State, 663-square-mile Armstrong County ranks 34th by size. The total value of roughly 1,000 acres of farms recently listed for sale in Pennsylvania's Armstrong County was nearly $2 million. The average price of farmland for sale in Armstrong County was $324,000. Farms for sale in Armstrong County hold livestock including horses, cattle, pig, sheep and goats. Browse all Pennsylvania farms for sale on the Land Network to find the farm, cattle operation, hobby farm or other farm property that's right for your future business or lifestyle needs.