Brentwood is located in Suffolk county New york with a geographic area of 11.0 square miles. The total population in Brentwood is 62,743 with 48.7% male and 51.3% female. Children under age 5 represent 6.4% of the population, under age 18 equal 23.4% of the population and over age 65 is 9.4% of the population. The median household income is $89,872, per capita income is $29,439. There are a total of 14,685 housing units with 76.9% owner occupied. Education includes 27.0% of residents that are high school graduates and 16.0% with a bachelor's degree or higher. The average temperature in Brentwood in the summer is 70 degrees, and in the winter 27 degrees.
