About ZIP code 83428
The ZIP code 83428 routes mail to Irwin in the Idaho 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
83428 - Irwin
ZIP code 83428 is Irwin in Idaho, United States.
| ZIP code | 83428 |
| Place | Irwin |
| Region | Idaho |
| District | Bonneville |
| Country | United States (US) |
| Coordinates | 43.3861, -111.2527 (map) |