Brentwood is located in Williamson county Tennessee with a geographic area of 41.1 square miles. The total population in Brentwood is 42,700 with 49.5% male and 50.5% female. Children under age 5 represent 4.2% of the population, under age 18 equal 29.2% of the population and over age 65 is 13.5% of the population. The median household income is $160,174, per capita income is $72,207. There are a total of 14,027 housing units with 90.3% owner occupied. Education includes 5.0% of residents that are high school graduates and 80.8% with a bachelor's degree or higher. The average temperature in Brentwood in the summer is 76 degrees, and in the winter 38 degrees.
