Germantown is located close to the center of Maryland. Germantown is part of Montgomery County. Germantown has 17.00 square miles of land area and 0.11 square miles of water area. As of 2010-2014, the total Germantown population is 88,717, which has grown 60.08% since 2000. The population growth rate is much higher than the state average rate of 11.16% and is much higher than the national average rate of 11.61%. Germantown median household income is $86,472 in 2010-2014 and has grown by 38.51% since 2000. The income growth rate is about the same as the state average rate of 40.25% and is higher than the national average rate of 27.36%. Germantown median house value is $305,200 in 2010-2014 and has grown by 116.61% since 2000. The house value growth rate is higher than the state average rate of 96.92% 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 Germantown is better than the state average in quality. The Germantown area code is 301.