ZIP Code 37831 – Oak Ridge, TN
Oak Ridge, Tennessee · Anderson County · Eastern time
| ZIP code | 37831 |
|---|---|
| City | Oak Ridge |
| State | Tennessee |
| County | Anderson County |
| Population | Not published (no Census ZIP area) |
| Time zone | Eastern · local time |
| ZIP type | PO box or unique ZIP (no Census area) |
| Center (lat, long) | 36.1060, -84.1958 |
Area codes in this area
These are the area codes that most often serve ZIP 37831 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 37831
ZIP code 37831 is assigned to Oak Ridge, Tennessee. It lies in Anderson County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 37716 (Clinton), about 1.6 miles away.
Every address in 37831 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources