About ZIP code 11901
The ZIP code 11901 routes mail to Riverhead in the New York 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
11901 - Riverhead
ZIP code 11901 is Riverhead in New York, United States.
| ZIP code | 11901 |
| Place | Riverhead |
| Region | New York |
| District | Suffolk |
| Country | United States (US) |
| Coordinates | 40.9262, -72.652 (map) |