ZIP Code 15642
Irwin · Westmoreland, Pennsylvania
15642 is the ZIP code of Irwin in Westmoreland, Pennsylvania, United States.
- ZIP Code
- 15642
- County
- Westmoreland
- State
- Pennsylvania
- Country
- United States
Place with ZIP code 15642
| Place | County | Location |
|---|---|---|
| Irwin | Westmoreland | 40.319, -79.721 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 15642?
Irwin.
Which county and state is 15642 in?
Westmoreland, Pennsylvania, United States.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.