Gallatin Population

1870–2026

56,541

2026 projection

27.3% since 2020 (increase)

010K20K30K40K50K60K18801900192019401960198020002020

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 Gallatin. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202656,541+1,9513.57%
202554,590+1,9473.70%
202452,643+2,1654.29%
202350,478+2,2194.60%
202248,259+1,4893.18%
202146,770+2,3395.26%
202044,431+1,0322.38%
201943,399+2,3365.69%
201841,063+3,2348.55%
201737,829+1,8595.17%

Showing 10 of 31 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

Gallatin is growing faster than Sumner County, Tennessee, and the U.S.

  • Gallatin+21.7%
  • Sumner County+9.2%
  • Tennessee+5.6%
  • United States+3.1%

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.

Gallatin Demographics

36.6median age

Median age

Female36.4 yrs
Male37 yrs

Adults

38,049
8,031 seniors (65+) · 21% of adults30,018 other adults

Sex

Female 51.5% · 24,982Male 48.5% · 23,550

Population by age

MaleFemale85+ years, male: 23085+ years, female: 57780–84 years, male: 46880–84 years, female: 54375–79 years, male: 63575–79 years, female: 91470–74 years, male: 1,06170–74 years, female: 90165–69 years, male: 1,13765–69 years, female: 1,56560–64 years, male: 1,50260–64 years, female: 1,22455–59 years, male: 1,43955–59 years, female: 1,55550–54 years, male: 1,28050–54 years, female: 1,70045–49 years, male: 1,40945–49 years, female: 1,06840–44 years, male: 1,65940–44 years, female: 1,31035–39 years, male: 1,48635–39 years, female: 1,65030–34 years, male: 1,62030–34 years, female: 1,73225–29 years, male: 2,43325–29 years, female: 2,32120–24 years, male: 1,55120–24 years, female: 1,72615–19 years, male: 1,41015–19 years, female: 1,51510–14 years, male: 1,44910–14 years, female: 1,2815–9 years, male: 1,5035–9 years, female: 1,9810–4 years, male: 1,2780–4 years, female: 1,41985+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 485 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

Gallatin Income

$77,518median household income

Median household income

$77,518

Half of households earn more, half earn less

Median earnings

$50,925

Typical yearly pay for a worker 25 or older.

Poverty rate

13%

About 1 in 8 residents

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

Gallatin Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%51%48%
Never married33%37%30%
Divorced11%8%14%
Widowed6%3%7%
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