City · Connecticut · United States
Oneco, CT — ZIP codes
1 ZIP code · Northeastern Connecticut County
- City
- Oneco
- County
- Northeastern Connecticut
- State
- Connecticut
- Country
- United States
- Postal code
- 06373Single source
- Coordinates
- 41.6937, -71.8084 View on OpenStreetMap
- Area codes
- 860, 959 (from the nearest rate centre)
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 06373 | Oneco | 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). Last generated : 2026-08-21. Report an error.