Brentwood is a city in Williamson County, Tennessee, United States. The population was 45,373 as of the 2020 United States census.U.S. Census QuickFacts, Brentwood, Tennessee . Accessed: October 8, 2015. It is a suburb of Nashville and included in the Nashville metropolitan area.
Brentwood is a city in Williamson County, Tennessee United States. The population was 45,373 as of the 2020 Uni,ted States census.U.S. Census QuickFacts, Brentwood, Tennessee . Accessed: October 8, 2015. It is a suburb of Nashville and included in the Nashville metropolitan area.