Armagh is located in southwest Pennsylvania. Armagh is part of Indiana County. Armagh has 0.06 square miles of land area and has no water area. As of 2010-2014, the total Armagh population is 102, which has shrunk 22.14% since 2000. The population growth rate is much lower than the state average rate of 3.89% and is much lower than the national average rate of 11.61%. Armagh median household income is $75,833 in 2010-2014 and has grown by 138.42% since 2000. The income growth rate is much higher than the state average rate of 32.44% and is much higher than the national average rate of 27.36%. Armagh median house value is $104,400 in 2010-2014 and has grown by 77.55% since 2000. The house value growth rate is higher than the state average rate of 70.00% and is much higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Armagh is better than the state average in quality. The Armagh area code is 814.