City · Connecticut · United States
Old Greenwich, CT — ZIP codes
1 ZIP code · Western Connecticut County
- City
- Old Greenwich
- County
- Western Connecticut
- State
- Connecticut
- Country
- United States
- Postal code
- 06870Single source
- Coordinates
- 41.0354, -73.5673 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 06870 | Old Greenwich | 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. Last generated : 2026-08-21. Report an error.