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ZIP Code 37421
Chattanooga, TN, Hamilton County
Population
52,985
Land area
31.7sq mi
People per sq mi
1,671
City
Chattanooga
ZIP 37421 and nearby ZIP codes
ZIP 37421 at a glance
- ZIP 37421 (Chattanooga) is about 9.7 times as dense as Tennessee as a whole.
- Households here earn a median of $82,517 a year, 19% more than the Tennessee figure of $69,595.
- A typical owner-occupied home is valued at $333,700 (16% above Tennessee) and median rent is $1,405 a month.
Local data for ZIP 37421
Counts from official public data
Housing and community stats
ZIP 37421, American Community Survey 2020-2024
Median household income
$82,517
Poverty rate
10.9%
Median home value
$333,700
Prices +2.0% in a year
Median rent
$1,405/mo
Homeownership
60.2%
Bachelor's or higher
38.8%
Median age
40.8
Average commute
19.8 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
2,083
ZIP Business Patterns 2023
Employees
42,723
$2.1B annual payroll
PPP loans
$200M
2,153 loans
Campaign donations
$275K
28% D, 25% R, 2026 cycle
Environment and hazard risk
ZIP 37421, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: tornado
Storm events since 1996
723
Countywide, mostly thunderstorm wind
Flood insurance policies
1,269
1.0% of homes, county
July high / Jan low
91° / 32°F
55.0 inches of rain a year
Health statistics
Share of adults in ZIP 37421, CDC PLACES estimates
Obesity
32.7%
U.S. 33.3% -0.6 pts
Diabetes
12.0%
U.S. 12.1% about the same
Smoking
13.6%
U.S. 12.8% +0.8 pts
Uninsured (18-64)
10.1%
U.S. 11.1% -1.0 pts
Frequently asked questions
- What city is ZIP code 37421?
- ZIP code 37421 is in Chattanooga, TN (Hamilton County).
- What county is ZIP code 37421 in?
- ZIP code 37421 is mostly in Hamilton County, Tennessee.
- How many people live in ZIP code 37421?
- About 52,985 people live in the 37421 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.