Gallatin is a city of 48,532 people in Tennessee. Since 2000 the city has more than doubled, up 25,302 people. The foreign-born share is 5%. 57% of homes are owner-occupied. There are 1,391 people per square mile. 82% were living in the same home a year earlier.
At a glance
Lower income
median household income $77,518, below the US median
US median: $82,259
Younger
median age 36.6
US median: 38.9
Average education
33% hold a bachelor's degree
US average: 36%
Less affordable
home values up 108%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Gallatin
What changed most since 1990
Population18,794 → 48,532(+158%)US over the same years: +35%
Median home value (2024 dollars)$148,084 → $372,000(+151%)US over the same years: +67%
Adults with a bachelor's degree11.5% → 33.5%(+21.9 pts)US over the same years: +15.3 pts
Gallatin's population equals 24% of Sumner County's. Its number of households without a car equals 38% of the county's. Its number of residents living in poverty equals 35% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)18.4%(454)
US avg: 26.4%
Gulf War (1990s)18.3%(452)
US avg: 24.3%
Vietnam era46.1%(1,137)
US avg: 33.1%
Korean War2.2%(53)
US avg: 4.5%
World War II0.4%(10)
US avg: 1%
Share of the 2,464 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Gallatin, decade by decade
Gallatin population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
18,794
$63,597
$148,084
11.5%
40.2
2000
23,230
$63,204
$179,251
14.5%
47.0
2010
30,278
$62,966
$221,252
17.9%
52.1
2020
44,431
$73,850
$295,253
28.8%
61.8
2024
48,532
$77,518
$372,000
33.5%
64.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
