ZIP Code 15421: Chalk Hill, PA
County: Fayette
Coordinates: 39.84510, -79.59910
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Get a reliable snapshot of the Chalk Hill, PA postal area 15421. This page summarizes county, coordinates, and local facts to help with services and location research.
| Primary City | Chalk Hill |
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| ZIP Code | 15421 |
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| County | Fayette |
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| State | PA |
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| Latitude / Longitude | 39.84510, -79.59910 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 15421 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 15421 are listed as 39.84510 / -79.59910, useful for GPS and service checks in and around Chalk Hill, PA.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 15421 for mail delivery and general location reference in
Fayette,
PA.
This ZIP may extend beyond the city core into nearby communities within Fayette.
Related ZIP Codes (Nearby)
Explore other postal codes near Chalk Hill within PA.
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Frequently Asked Questions
What is the primary city for ZIP code 15421?
The primary city for this ZIP code is Chalk Hill, located in PA.
In which county is 15421 located?
ZIP code 15421 is situated within Fayette, PA.
What are the coordinates for 15421?
The approximate center point is 39.84510 (Latitude) and -79.59910 (Longitude).
Is ZIP code 15421 active?
This page lists ZIP 15421 as Listed based on the latest refresh date shown above.
Does ZIP 15421 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08