Irwin zipcode
| City | Irwin |
| ZIP Code | 83428 |
| Type | Standard |
| State Code | ID |
| State | Idaho |
ZIP code of Irwin is 83428. This place is located in Idaho state in US. To send any postal service to Irwin, you must use 83428 zipcode.
The ZIP code 83428 is also used with 1 more city name of Idaho.
- Palisades, ID