ZIP code · Oak Ridge · Tennessee · United States
ZIP code 37831 — Oak Ridge
ZIP code 37831 serves Oak Ridge, Tennessee.
- Postal code
- 37831Single source Value from one source, not cross-checked.
- City
- Oak Ridge
- County
- Anderson
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.1060, -84.1958 — precision precise (locality)
View on OpenStreetMap - 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
- 865Telephone 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 37831 with another ZIP · ZIPs within 25 miles · distance from 37831
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Jan (avg low 30°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 48 | 53 | 62 | 72 | 80 | 86 | 89 | 88 | 83 | 72 | 60 | 51 |
| Avg low °F | 30 | 33 | 40 | 48 | 57 | 65 | 69 | 68 | 61 | 49 | 38 | 33 |
| Precip in | 5.1 | 5.6 | 5.1 | 5.2 | 4.1 | 4.5 | 5.5 | 3.5 | 3.8 | 3.1 | 4.6 | 5.4 |
NOAA 1991–2020 climate normals from the nearest station: OAK RIDGE ASOS (6.2 mi) · NOAA NCEI
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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page