Philadelphia is located in east Tennessee. Philadelphia is between the Loudon, Mcminn, Monroe, Roane county. Philadelphia has 1.60 square miles of land area and has no water area. As of 2010-2014, the total Philadelphia population is 901, which has grown 69.04% since 2000. The population growth rate is much higher than the state average rate of 13.40% and is much higher than the national average rate of 11.61%. Philadelphia median household income is $34,659 in 2010-2014 and has grown by 9.81% since 2000. The income growth rate is much lower than the state average rate of 22.72% and is much lower than the national average rate of 27.36%. Philadelphia median house value is $79,600 in 2010-2014 and has grown by 38.43% since 2000. The house value growth rate is lower than the state average rate of 50.43% and is lower 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 Philadelphia is much better than the state average in quality. The Philadelphia area code is 865.