About ZIP code 11742
The ZIP code 11742 routes mail to Holtsville 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
11742 - Holtsville
ZIP code 11742 is Holtsville in New York, United States.
| ZIP code | 11742 |
| Place | Holtsville |
| Region | New York |
| District | Suffolk |
| Country | United States (US) |
| Coordinates | 40.8105, -73.0416 (map) |