Germantown is located in south Illinois. Germantown is part of Clinton County. Germantown has 0.87 square miles of land area and has no water area. As of 2010-2014, the total Germantown population is 1,142, which has grown 2.15% since 2000. The population growth rate is lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Germantown median household income is $56,875 in 2010-2014 and has grown by 19.45% since 2000. The income growth rate is lower than the state average rate of 22.70% and is lower than the national average rate of 27.36%. Germantown median house value is $153,500 in 2010-2014 and has grown by 84.27% since 2000. The house value growth rate is much higher than the state average rate of 34.33% 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 much better than the state average in quality. The Germantown area code is 618.