ZIP code · Chalk Hill · Pennsylvania · United States
ZIP code 15421 — Chalk Hill
ZIP code 15421 serves Chalk Hill, Pennsylvania.
- Postal code
- 15421Single source Value from one source, not cross-checked.
- City
- Chalk Hill
- County
- Fayette
- State
- Pennsylvania
- Country
- United States
- Coordinates
- 39.8451, -79.5991 — precision estimated (postal-area centroid)
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About this page
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. Data generated on 2026-08-21. Methodology · Report an error on this page