Residential delivery area · Tennessee
ZIP Code 37403: Chattanooga, TN
ZIP code 37403 is in Chattanooga, Tennessee, entirely in Hamilton County (Census 2020 ZIP-county file). About 6,400 people live there (Census Bureau, ACS 2020-2024), the 10th most populous of Chattanooga's 16 residential ZIP codes. Median household income is $81,136 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Chattanooga · 16 residential ZIPs
- County
- Hamilton County
- Census places
- Chattanooga
- Metro area
- Chattanooga, TN-GA
- House district
- TN-3 119th Congress
- State
- Tennessee
- Time zone
- Eastern
- Land area
- 1.7 sq mi · 3,761 people per sq mi
Where is ZIP code 37403?
37403 centers on 35.048°, -85.294° and covers 1.7 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 37402, 37408, 37404, 37406, 37405.
The map draws ZIP code areas only. For the streets inside 37403, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 37403 compare with the rest of Chattanooga?
| Measure | 37403 | In Chattanooga | In Hamilton County | In TN |
|---|---|---|---|---|
| People (ACS 2020-2024) | 6,413 | 10th of 16 | 16th of 31 | 262nd of 636 |
| Median household income | $81k | not ranked | not ranked | not ranked |
| Median home value | $525k | 1st of 13 | 3rd of 24 | 23rd of 436 |
37403's median household income is not ranked: its 90% margin of error (±$42,094) is more than a quarter of the figure ($81,136). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 91% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 37403?
The 2020 Census counted 5,666 people in 37403; the ACS, which samples households over 2020-2024, estimates 6,413. Between the 2010 and 2020 censuses its population fell 2.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,413
- 2020 Census count
- 5,666−2.5% since 2010 (5,811)
- Households
- 1,990
- Median age
- 21.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 37403?
Of the 6,413 people the ACS estimates in 37403, 2.9% are under 18 and 5.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.5%), then Black (not Hispanic) (13.9%).
- Under 182.9%
- 18 to 6491.3%
- 65 and older5.8%
- White, not Hispanic72.5%
- Black, not Hispanic13.9%
- Hispanic or Latino5.5%
- Other or two or more4.2%
- Asian, not Hispanic3.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 37403 earn?
Median household income is $81,136 (ACS 2020-2024). It is not measurably different from 2015-2019 ($46,073 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $81,136±$42,094
- Income per person
- $39,217
- Below the poverty line
- 23.6%
- Unemployed (of the labor force)
- 4.6%
- Adults 25+ with a bachelor's degree
- 55.5%
- Adjusted gross income per tax return, 2022
- $125,7851,610 returns; wages 51% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 37403?
- Median home value (owners' estimate)
- $525,200
- Median gross rent
- $1,443
- Homes owned by their occupants
- 25.9%
- Housing units
- 2,424
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 37403?
287 business establishments had a location in this ZIP code in 2023, 30 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance55
- Professional, scientific, and technical services51
- Accommodation and food services30
- Other services (except public administration)30
- Information21
- Finance and insurance21
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 37403?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37402 | Chattanooga | 3,953 | $24k | 1.2 mi |
| 37408 | Chattanooga | 3,502 | $81k | 1.6 mi |
| 37404 | Chattanooga | 14,737 | $57k | 1.8 mi |
| 37406 | Chattanooga | 13,364 | $45k | 3.3 mi |
| 37405 | Chattanooga | 18,109 | $81k | 7.5 mi |
| 37450 | Chattanooga | 0 | – | 1.0 mi (near) |
| 37407 | Chattanooga | 9,156 | $36k | 3.2 mi (near) |
| 37410 | Chattanooga | 4,129 | $29k | 3.4 mi (near) |
| 37409 | Chattanooga | 3,357 | $75k | 3.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.