ZIP Code Tabulation Area · Tennessee

ZIP Code 37421: Chattanooga, TN

ZIP Code 37421 (Chattanooga, Hamilton County, Tennessee) has an estimated 52,985 residents in 22,278 households. The median household income is $82,517, the median home value is $333,700 and the median gross rent is $1,405/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

52,985

Margin of error ±2,162

Median household income

$82,517

Margin of error ±$3,937

Median home value

$333,700

Margin of error ±$11,221

Median gross rent

$1,405/mo

Margin of error ±$44

Median age

40.8 yrs

Margin of error ±1.5 yrs

Mean travel time to work

19.8 min

Margin of error ±1.6 min

How ZIP 37421 compares with Tennessee and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 3742140.8 yrsTennessee38.9 yrsUnited States38.9 yrs

Median household income

ZIP 37421$82,517Tennessee$69,595United States$80,734

Per capita income

ZIP 37421$47,620Tennessee$39,437United States$44,673

Poverty rate

ZIP 3742110.9%Tennessee13.8%United States12.5%

Unemployment rate

ZIP 374213.5%Tennessee4.7%United States5.2%

Bachelor's degree or higher

ZIP 3742138.8%Tennessee31.1%United States35.7%

Median home value

ZIP 37421$333,700Tennessee$286,700United States$332,700

Median gross rent

ZIP 37421$1,405/moTennessee$1,189/moUnited States$1,413/mo

Owner-occupied homes

ZIP 3742160.2%Tennessee66.9%United States65.2%

Mean travel time to work

ZIP 3742119.8 minTennessee25.7 minUnited States26.4 min

Worked from home

ZIP 3742112.4%Tennessee12.9%United States15.1%

All figures for ZIP 37421

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 37421 — ACS 2020–2024 5-year estimates
MeasureZIP 37421Margin of errorTennesseeUnited States
Total population52,985±2,1627,066,383334,922,499
Median age40.8 yrs±1.5 yrs38.9 yrs38.9 yrs
Households22,278±9502,824,277129,227,496
Median household income$82,517±$3,937$69,595$80,734
Per capita income$47,620±$2,315$39,437$44,673
Poverty rate10.9%±2.1 pts13.8%12.5%
Unemployment rate3.5%±1.0 pts4.7%5.2%
Bachelor's degree or higher38.8%±2.6 pts31.1%35.7%
Median home value$333,700±$11,221$286,700$332,700
Median gross rent$1,405/mo±$44$1,189/mo$1,413/mo
Owner-occupied homes60.2%±2.5 pts66.9%65.2%
Mean travel time to work19.8 min±1.6 min25.7 min26.4 min
Worked from home12.4%±1.8 pts12.9%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 37421
GroupZIP 37421TennesseeUnited States
White alone, not Hispanic or Latino60.5%71.0%57.4%
Black or African American alone, not Hispanic or Latino22.1%15.4%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino5.1%1.9%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.1%0.2%
Some other race alone, not Hispanic or Latino0.1%0.4%0.6%
Two or more races, not Hispanic or Latino2.7%3.7%4.3%
Hispanic or Latino (of any race)9.5%7.4%19.3%

Where ZIP 37421 is

State
Tennessee
Main county
Hamilton County
Largest overlapping place
Chattanooga (77% of the ZIP's land area)
Land area
31.70 sq mi· about 1,671 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Hamilton County

37302 Apison, TN37308 Hamilton County, TN37315 Collegedale, TN37336 Hamilton County, TN37341 Hamilton County, TN37343 Chattanooga, TN37350 Lookout Mountain, TN37351 Chattanooga, TN37363 Hamilton County, TN37373 Sale Creek, TN37377 Hamilton County, TN37379 Hamilton County, TN37402 Chattanooga, TN37403 Chattanooga, TN37404 Chattanooga, TN37406 Chattanooga, TN37407 Chattanooga, TN37408 Chattanooga, TN37409 Chattanooga, TN37410 Chattanooga, TN37411 Chattanooga, TN37412 East Ridge, TN37415 Chattanooga, TN37416 Chattanooga, TN

See every ZIP code in Tennessee, or compare ZIP 37421 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.