ZIP code · Chattanooga · Tennessee · United States
ZIP code 37403 — Chattanooga
ZIP code 37403 serves Chattanooga, Tennessee.
- Postal code
- 37403Single 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
- 423Telephone 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.
Tools: compare 37403 with another ZIP · ZIPs within 25 miles · distance from 37403
Map of ZIP code 37403
Climate — monthly normals
Warmest month Jul (avg high 84°F), coldest Jan (avg low 29°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 49 | 58 | 68 | 74 | 81 | 84 | 82 | 78 | 67 | 57 | 49 |
| Avg low °F | 29 | 31 | 39 | 47 | 57 | 65 | 67 | 67 | 61 | 51 | 40 | 32 |
| Precip in | 5.5 | 6.0 | 5.6 | 5.5 | 4.3 | 4.2 | 4.8 | 4.0 | 4.9 | 3.8 | 4.6 | 5.4 |
NOAA 1991–2020 climate normals from the nearest station: LOOKOUT MTN-POINT PARK (3.7 mi) · NOAA NCEI
Places in ZIP 37403
- 5 schools
- 4 colleges & universities
- 3 hospitals & clinics
- 1 doctors & dentists
- 12 restaurants & cafés
- 3 bars & pubs
- 6 parks
- 4 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 13 places of worship
- 3 gas stations
- 2 EV charging stations
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