Clarksville is located close to the center of Tennessee. Clarksville is between the Montgomery, Cheatham county. Clarksville has 97.60 square miles of land area and 0.68 square miles of water area. As of 2010-2014, the total Clarksville population is 140,563, which has grown 35.87% 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%. Clarksville median household income is $47,489 in 2010-2014 and has grown by 26.48% since 2000. The income growth rate is higher than the state average rate of 22.72% and is about the same as the national average rate of 27.36%. Clarksville median house value is $135,500 in 2010-2014 and has grown by 60.93% since 2000. The house value growth rate is higher than the state average rate of 50.43% 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 Clarksville is much better than the state average in quality. The Clarksville area codes are 615, 931.