What is Brentwood Tennessee and Is It Part of Nashville?

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No, Brentwood is not part of the city of Nashville. It is a separate city in Williamson County, incorporated in 1969, and a suburb included in the Nashville metropolitan area (Wikipedia). It had an estimated 45,313 residents on July 1, 2025, according to the Census Bureau’s Vintage 2025 estimates (Census Bureau). By road, the trip from Lower Broadway to Brentwood’s center measured 12.8 miles and about 17 minutes on the OSRM route planner in October 2026, without traffic. So a Brentwood address means Williamson County services and schools, not Metro Nashville’s.

Brentwood at a Glance

What the sources say
County Williamson County (Wikipedia)
Incorporated 1969 (Wikipedia)
Population 45,373 in the 2020 census; 45,313 estimated for July 1, 2025 (Wikipedia; Census Bureau)
Metro area included in the Nashville metropolitan area (Wikipedia)
Distance 12.8 miles by road from Lower Broadway to the city center (OSRM, October 2026)
Schools Williamson County Schools covers Brentwood for K-12 (Wikipedia)

The school district detail is from Wikipedia’s Williamson County Schools article.

What the Difference Means

  1. Government: Nashville is governed by the Metropolitan Government of Nashville and Davidson County; Brentwood has its own city government in a different county.
  2. Schools: Williamson County Schools, not Metro Nashville Public Schools; how to check a school is in which neighborhoods are near good schools.
  3. Addresses: confirm the city and county in the property record before you rely on a listing’s city name.

How Nashville proper differs from the wider region is in the difference between Nashville proper and greater Nashville.