Complete ZIP Code Details
| ZIP Code | 15642 |
| City | Irwin |
| State | Pennsylvania (PA) |
| County | Westmoreland |
| Timezone | America/New_York |
| Coordinates | 40.3204500, -79.7211900 |
| Population | 46,325 |
| ZIP Type | STANDARD |
| Country | United States |
| ZIP Code | 15642 |
| City | Irwin |
| State | Pennsylvania (PA) |
| County | Westmoreland |
| Timezone | America/New_York |
| Coordinates | 40.3204500, -79.7211900 |
| Population | 46,325 |
| ZIP Type | STANDARD |
| Country | United States |