ZIP code · Corryton · Tennessee · United States
ZIP code 37721 — Corryton
ZIP code 37721 serves Corryton, Tennessee.
- Postal code
- 37721Single source Value from one source, not cross-checked.
- City
- Corryton
- County
- Knox FIPS 47093
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.1200, -83.8130 — precision precise (locality)
View on OpenStreetMap - Population
- 14,649 (ZCTA, ACS 5-year)
- Population density
- 297 / sq mi
- Land area
- 49.3 sq mi (127.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $64,674
- Per-capita income
- $30,379
- Median age
- 41.1
- Households
- 5,539
- Housing units
- 5,844
- Median home value
- $218,900
- Median gross rent
- $960 / month
- Congressional district
- TN-2 (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
- 865 (from the nearest rate centre)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.
Tools: compare 37721 with another ZIP · ZIPs within 25 miles · distance from 37721
Map of ZIP code 37721
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 25°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 50 | 60 | 70 | 77 | 83 | 85 | 85 | 80 | 70 | 57 | 48 |
| Avg low °F | 25 | 28 | 33 | 41 | 51 | 59 | 63 | 63 | 56 | 44 | 34 | 29 |
| Precip in | 5.1 | 5.3 | 5.5 | 5.8 | 4.3 | 4.9 | 5.4 | 4.3 | 4.1 | 3.4 | 4.0 | 5.7 |
NOAA 1991–2020 climate normals from the nearest station: NORRIS (15.2 mi) · NOAA NCEI
Places in ZIP 37721
- 6 schools
- 1 supermarkets
- 3 restaurants & cafés
- 3 parks
- 2 playgrounds
- 1 libraries
- 1 post offices
- 13 places of worship
- 1 banks
- 3 gas stations
- 2 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