What is the largest city in Hamilton County, TN?

Chattanooga is the largest city or town in Hamilton County, with about 185,783 residents.

How many ZIP codes are in Hamilton County?

Hamilton County includes 25 ZIP Code Tabulation Areas, including 37302, 37308, 37315, 37341, 37343.

What is the population of Hamilton County, TN?

About 376,192 people live in Hamilton County, based on American Community Survey 5-year estimates.

What counties border Hamilton County?

Hamilton County borders Bradley County, Whitfield County, GA, Walker County, GA, Catoosa County, GA, Rhea County, Marion County, Sequatchie County, Dade County, GA, Bledsoe County, Meigs County.

Hamilton County, TN: Cities, ZIP Codes & Local Data

Population

376,192

Land area

542sq mi

People per sq mi

694

ZIP codes

25

Hamilton County at a glance

Hamilton County is about 4 times as dense as Tennessee as a whole.
By population, it ranks 4th among 95 counties in Tennessee.
The median household income is $76,183, 9% above the Tennessee median of $69,595.
A typical owner-occupied home is valued at $312,800 (9% above Tennessee) and median rent is $1,253 a month.
Its largest cities are Chattanooga (185,783), East Ridge (22,070) and Soddy-Daisy (13,231).

Local data for Hamilton County, TN

Counts from official public data

Housing and community stats

Hamilton County, TN, American Community Survey 2020-2024

Full profile

Median household income

$76,183

Poverty rate

13.1%

Median home value

$312,800

Prices +1.8% in a year

Median rent

$1,253/mo

Homeownership

63.9%

Bachelor's or higher

37.5%

Median age

39.5

Average commute

22.1 min

Largest reported origins and ancestries: Irish Americans (42,009), German Americans (40,189), Mexican Americans (11,982).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.1%

Sep 2026, -0.3 pts in a year

Average annual pay

$69,253

219,580 jobs, 2025

Income per person

$69,042

BEA, 2024

Federal spending

$6.9B

FY 2026, $18,713 per person

PPP loans

$871M

10,627 loans, 99,100 jobs reported

Campaign donations

$8.1M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Hamilton County, TN, workers 16 and older. American Community Survey 5-year estimates

Drove alone74.2%
Carpooled8.4%
Public transit0.6%
Walked1.6%
Bicycle0.2%
Taxi, ride-hailing, motorcycle or other0.8%
Worked from home14.3%

Average one-way commute: 22.1 minutes for people who do not work from home.

Environment and hazard risk

Hamilton County, TN, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: tornado

Storm events since 1996

723

Most often thunderstorm wind

Flood insurance policies

1,269

1.0% of homes, county

July high / Jan low

88° / 28°F

63.1 inches of rain a year

Hazards, floods and storm history Check a flood zone 75 historic places

Health statistics

Share of adults in Hamilton County, TN, CDC PLACES estimates

All 40 measures

Obesity

34.5%

U.S. 33.3% +1.2 pts

Diabetes

12.7%

U.S. 12.1% +0.6 pts

Smoking

15.4%

U.S. 12.8% +2.6 pts

Uninsured (18-64)

10.7%

U.S. 11.1% about the same

Cities, towns and ZIP codes in Hamilton County

Population shown

·

Frequently asked questions

What is the largest city in Hamilton County, TN?: Chattanooga is the largest city or town in Hamilton County, with about 185,783 residents.
How many ZIP codes are in Hamilton County?: Hamilton County includes 25 ZIP Code Tabulation Areas, including 37302, 37308, 37315, 37341, 37343.
What is the population of Hamilton County, TN?: About 376,192 people live in Hamilton County, based on American Community Survey 5-year estimates.
What counties border Hamilton County?: Hamilton County borders Bradley County, Whitfield County, GA, Walker County, GA, Catoosa County, GA, Rhea County, Marion County, Sequatchie County, Dade County, GA, Bledsoe County, Meigs County.