ZIP code · Chattanooga · Tennessee · United States

ZIP code 37403 — Chattanooga

ZIP code 37403 serves Chattanooga, Tennessee.

Postal code
37403
Single source Value from one source, not cross-checked.
City
Chattanooga
County
Hamilton FIPS 47065
State
Tennessee
Country
United States
Coordinates
35.0450, -85.2965 — precision precise (locality)
View on OpenStreetMap
Population
6,560 (ZCTA, ACS 5-year)
Population density
3,844 / sq mi
Land area
1.7 sq mi (4.4 km²) (ZCTA, ACS 5-year)
Median household income
$65,750
Per-capita income
$33,556
Median age
21.4
Households
1,965
Housing units
2,394
Median home value
$444,000
Median gross rent
$1,253 / month
Congressional district
TN-3 (119th Congress)
USDA hardiness zone
8a (10 to 15 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area code
423
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 84°F), coldest Jan (avg low 29°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F464958687481848278675749
Avg low °F293139475765676761514032
Precip in5.56.05.65.54.34.24.84.04.93.84.65.4

NOAA 1991–2020 climate normals from the nearest station: LOOKOUT MTN-POINT PARK (3.7 mi) · NOAA NCEI

Places in ZIP 37403

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page