Hamilton County, Tennessee Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 4th-largest in Tennessee
The population of Hamilton County, Tennessee is 370,913 as of the 2023 American Community Survey, making it the 4th-largest county in Tennessee. The median household income is $72,568, the median home value is $282,100, and the median age is 39.5.
The population of Hamilton County has grown 14.5% since 2010 (337,235 → 386,256), a +0.97% annualized rate.
370,913
Population
+0.97%
Annual growth
684
People / sq mi
$72,568
Median Income
$282,100
Median Home Value
Hamilton County covers 542 sq mi of land at 684.1 people per square mile.
About Hamilton County, TN
Hamilton County is a county in Tennessee with a population of 370,913. It ranks #4 among counties in Tennessee by population. The median age is 39.5, in line with the national median. The population is 48.5% male and 51.5% female.
The median household income in Hamilton County is $72,568, near the US median of $74,580. 8.4% of residents live below the federal poverty level. Home values sit at a median of $282,100, with monthly rent averaging $1,163. The homeownership rate of 64.3% is close to the national rate of 64.8%.
Educational attainment in Hamilton County reflects 37.0% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 12.9% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 21.9 minutes each way.
Hamilton County Population History (2010-2024)
The county of Hamilton County had a population of 337,235 in 2010 and 386,256 in 2024, a 14.5% growth over 14 years. The peak was 386,256 in 2024. Average annual growth rate: 0.98%.
386,256
Population (2024)
337,235
Population (2010)
386,256
Peak (2024)
0.98%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 337,235 |
| 2011 | 341,179 |
| 2012 | 345,828 |
| 2013 | 349,234 |
| 2014 | 350,972 |
| 2015 | 353,985 |
| 2016 | 358,165 |
| 2017 | 361,362 |
| 2018 | 364,626 |
| 2019 | 367,776 |
| 2020 | 367,891 |
| 2021 | 369,678 |
| 2022 | 375,861 |
| 2023 | 381,272 |
| 2024 | 386,256 |
Race & Ethnicity
| White | 71.1% |
| Black or African American | 17.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
39.5
Median Age
51.5%
Female
48.5%
Male
18.1%
Age 65+
Age Distribution
Children (under 15): 17.6% · Seniors (65+): 18.1%
Income & Poverty
| Median household income | $72,568+$5,471 vs state |
| Mean household income | $103,813 |
| Per-capita income | $43,484 |
| Poverty rate | 8.4%-1.5% vs state |
| Unemployment rate | 2.7% |
| Employment-to-population | 61.3% |
Top Industries by Employment
The largest employment sector in Hamilton County is professional & business services, accounting for 22.2% of workers.
How residents commute
0.7%
Drive alone
1.6%
Carpool
75.0%
Public transit
12.9%
Work from home
21.9 min
Avg commute
Housing
$282,100+$25,300 vs state
Median home value
$1,163
Median rent
64.3%
Homeownership rate
165,605
Total housing units
91.4%
Occupied
8.6%
Vacant
35.7%
Renter-occupied
Social & access
90.4%
With health insurance
94.7%
With broadband internet
38.3%
Foreign-born
6.9%
Veterans (18+)
14.2%
With a disability
91.0%
Speak language other than English at home
Education
91.1%
High School+
37.0%
Bachelor's+
Largest cities in Tennessee
Other counties in Tennessee
Part of Tennessee
Metro areas in Tennessee
County rankings
Common questions about Hamilton County, TN
Frequently Asked Questions
Hamilton County, Tennessee has a population of 370,913 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest county in Tennessee. Population density is 684 people per square mile.
The population of Hamilton County has grown 14.5% since 2010 (337,235 → 386,256), a +0.97% annualized rate.
The median household income in Hamilton County, Tennessee is $72,568, with mean (average) household income of $103,813 and per-capita income of $43,484. 8.4% of residents live below the federal poverty level.
In Hamilton County, the largest racial and ethnic groups are White (71.1%), Black or African American (17.6%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Hamilton County, Tennessee is 39.5 years. Residents are 51.5% female and 48.5% male.
The median home value in Hamilton County is $282,100 and median monthly rent is $1,163. 64.3% of occupied housing units are owner-occupied. The county has 165,605 total housing units, 8.6% of which are vacant.
The largest employment sector in Hamilton County, Tennessee is professional, scientific, and management services, employing 22.2% of workers. The unemployment rate is 2.7%.
Nashville-Davidson is among the largest cities associated with Hamilton County, Tennessee, with a population of 684,298.
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Full rankings of Tennessee counties
Statewide data for Tennessee
Population, race, income, age, and trends across Tennessee
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.