Hampden is located close to the center of Maine. Hampden is part of Penobscot County. Hampden has 10.96 square miles of land area and 0.67 square miles of water area. As of 2010-2014, the total Hampden population is 3,944, which has shrunk 4.41% since 2000. The population growth rate is much lower than the state average rate of 4.21% and is much lower than the national average rate of 11.61%. Hampden median household income is $83,167 in 2010-2014 and has grown by 55.94% since 2000. The income growth rate is much higher than the state average rate of 31.05% and is much higher than the national average rate of 27.36%. Hampden median house value is $171,500 in 2010-2014 and has grown by 64.11% since 2000. The house value growth rate is lower than the state average rate of 75.89% and is 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 Hampden is much better than the state average in quality. The Hampden area code is 207.