Brentwood Population

1940–2026

45,307

2026 projection

0.1% since 2020 (decrease)

010K20K30K40K50K19401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Brentwood. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202645,307-60.01%
202545,313-1000.22%
202445,413+660.15%
202345,347-2200.48%
202245,567-1610.35%
202145,728+3550.78%
202045,373+2540.56%
201945,119+3850.86%
201844,734+2260.51%
201744,508+4891.11%

Showing 10 of 22 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Brentwood has a population change lower than Williamson County, Tennessee, and the U.S.

  • Williamson County+9.0%
  • Tennessee+5.6%
  • United States+3.1%
  • Brentwood−0.3%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Brentwood Demographics

44.9median age

Median age

Female46.2 yrs
Male43 yrs

Adults

33,331
7,425 seniors (65+) · 22% of adults25,906 other adults

Sex

Female 49.7% · 22,645Male 50.3% · 22,911

Population by age

MaleFemale85+ years, male: 27085+ years, female: 44680–84 years, male: 42680–84 years, female: 51975–79 years, male: 76975–79 years, female: 84170–74 years, male: 87570–74 years, female: 1,11165–69 years, male: 1,04765–69 years, female: 1,12160–64 years, male: 1,67560–64 years, female: 1,76055–59 years, male: 1,80955–59 years, female: 1,77550–54 years, male: 2,01050–54 years, female: 1,84445–49 years, male: 1,91745–49 years, female: 2,45940–44 years, male: 1,56540–44 years, female: 1,98035–39 years, male: 57535–39 years, female: 85130–34 years, male: 62430–34 years, female: 46425–29 years, male: 48225–29 years, female: 43220–24 years, male: 1,19320–24 years, female: 1,13015–19 years, male: 2,80015–19 years, female: 2,21810–14 years, male: 2,51710–14 years, female: 1,8495–9 years, male: 1,6225–9 years, female: 1,2590–4 years, male: 7350–4 years, female: 58685+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 456 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Brentwood Income

$182,088median household income

Median household income

$182,088

Half of households earn more, half earn less

Median earnings

$100,563

Typical yearly pay for a worker 25 or older.

Poverty rate

3.6%

About 1 in 28 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Brentwood Marital Status

66% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married66%68%63%
Never married25%27%22%
Divorced5%3%8%
Widowed4%2%6%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources