City · Pennsylvania · United States
Mount Pleasant, PA — ZIP codes
1 ZIP code · Westmoreland County
- City
- Mount Pleasant
- County
- Westmoreland
- State
- Pennsylvania
- Country
- United States
- Postal code
- 15666Single source
- Coordinates
- 40.1742, -79.5134 View on OpenStreetMap
- Area codes
- 724, 878
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 15666 | Mount Pleasant | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.