ZIP code · Dayton · Tennessee · United States
ZIP code 37321 — Dayton
ZIP code 37321 serves Dayton, Tennessee.
- Postal code
- 37321Single source Value from one source, not cross-checked.
- City
- Dayton
- County
- Rhea FIPS 47143
- State
- Tennessee
- Country
- United States
- Coordinates
- 35.5002, -85.0135 — precision precise (locality)
View on OpenStreetMap - Population
- 20,670 (ZCTA, ACS 5-year)
- Population density
- 181 / sq mi
- Land area
- 114 sq mi (295.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $59,182
- Per-capita income
- $27,028
- Median age
- 38.7
- Households
- 7,952
- Housing units
- 8,947
- Median home value
- $168,000
- Median gross rent
- $819 / month
- Congressional district
- TN-4 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °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 37321 with another ZIP · ZIPs within 25 miles · distance from 37321
Map of ZIP code 37321
Climate — monthly normals
Warmest month Jul (avg high 88°F), coldest Jan (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 47 | 52 | 61 | 71 | 78 | 85 | 88 | 87 | 82 | 71 | 59 | 50 |
| Avg low °F | 28 | 31 | 38 | 46 | 55 | 63 | 67 | 66 | 60 | 48 | 37 | 31 |
| Precip in | 5.2 | 5.1 | 5.3 | 5.4 | 4.8 | 4.5 | 5.3 | 3.9 | 4.8 | 3.6 | 4.8 | 6.0 |
NOAA 1991–2020 climate normals from the nearest station: DAYTON 2SE (2.2 mi) · NOAA NCEI
Places in ZIP 37321
- 10 schools
- 1 colleges & universities
- 1 hospitals & clinics
- 1 doctors & dentists
- 1 pharmacies
- 4 supermarkets
- 27 restaurants & cafés
- 13 parks
- 7 playgrounds
- 3 gyms & sports centres
- 2 libraries
- 2 post offices
- 44 places of worship
- 6 banks
- 13 gas stations
- 2 EV charging stations
- 3 police & fire 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