The median age was 36 years. The median income for a household in the city was $60,643, and the median income for a family was $63,311. Males had a median income of $47,113 versus $38,924 for females. The per capita income for the city was $30,645. About 3.4% of families and 5.5% of the population were below the poverty line, including 5.7% of those under age 18 and 7.7% of those age 65 or over. Brentwood School District operates two elementary schools, one middle school, and Brentwood High School. The town has a lending library, the Brentwood Public Library.