Brentwood is located close to the center of Tennessee. Brentwood is between the Williamson, Davidson county. Brentwood has 41.18 square miles of land area and 0.04 square miles of water area. As of 2010-2014, the total Brentwood population is 39,059, which has grown 66.60% 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%. Brentwood median household income is $138,395 in 2010-2014 and has grown by 23.77% since 2000. The income growth rate is about the same as the state average rate of 22.72% and is lower than the national average rate of 27.36%. Brentwood median house value is $487,900 in 2010-2014 and has grown by 55.78% 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 Brentwood is much better than the state average in quality. The Brentwood area code is 615.