In which county is ZIP code 15664 located?

ZIP 15664 is listed under Westmoreland, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 15664: Mammoth, PA

ZIP: 15664

County: Westmoreland

Coordinates: 40.31080, -79.61720

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 15664 in Mammoth, PA. We include verified county details for Westmoreland plus key geographic references used for mapping and logistics.

Primary City	Mammoth
ZIP Code	15664
County	Westmoreland
State	PA
Latitude / Longitude	40.31080, -79.61720
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 15664 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 15664 is commonly represented around 40.31080, -79.61720. These coordinates help identify the general area within Westmoreland, PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 15664 for mail delivery and general location reference in Westmoreland, PA.

Some addresses near Mammoth may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Mammoth within PA.

Frequently Asked Questions

What is the primary city for ZIP code 15664?

The primary city for this ZIP code is Mammoth, located in PA.

In which county is 15664 located?

ZIP code 15664 is situated within Westmoreland, PA.

What are the coordinates for 15664?

The approximate center point is 40.31080 (Latitude) and -79.61720 (Longitude).

Is ZIP code 15664 active?

This page lists ZIP 15664 as Listed based on the latest refresh date shown above.

Does ZIP 15664 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

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