City · Connecticut · United States
Ansonia, CT — ZIP codes
1 ZIP code · Naugatuck Valley County
- City
- Ansonia
- County
- Naugatuck Valley
- State
- Connecticut
- Country
- United States
- Postal code
- 06401Single source
- Coordinates
- 41.3427, -73.0742 View on OpenStreetMap
- Area codes
- 203, 475 (from the nearest rate centre)
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 06401 | Ansonia | 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.