City · Tennessee · United States
Greenback, TN — ZIP codes
1 ZIP code · Loudon County
- City
- Greenback
- County
- Loudon
- State
- Tennessee
- Country
- United States
- Postal code
- 37742Single source
- Coordinates
- 35.6567, -84.1710 View on OpenStreetMap
- Area code
- 865
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 37742 | Greenback | Single source |
Sources and verification
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. Last generated : 2026-08-21. Report an error.