About ZIP code 03257
The ZIP code 03257 routes mail to New London in the New Hampshire region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
03257 - New London
ZIP code 03257 is New London in New Hampshire, United States.
| ZIP code | 03257 |
| Place | New London |
| Region | New Hampshire |
| District | Merrimack |
| Country | United States (US) |
| Coordinates | 43.4145, -71.9857 (map) |