15664 ZIP Code — Mammoth, PA
Westmoreland County, Pennsylvania
ZIP code 15664 is located in Mammoth, Pennsylvania, within Westmoreland County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 724.
0
population
0.00
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
15664 ZIP code map
Cities in ZIP code 15664
Below are the cities the US Postal Service accepts for ZIP code 15664. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Mammoth | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 42 |
| County FIPS | 129 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 40.2008 |
| Longitude | -79.4636 |
| Timezone | Eastern (ET) |
| Area code | 724 |