Find the last 4 digits (ZIP+4) for an address in 15664

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ZIP Code 15664 – Mammoth, PA

Mammoth, Pennsylvania · Westmoreland County · Eastern time

ZIP code15664
CityMammoth
StatePennsylvania
CountyWestmoreland County
PopulationNot published (no Census ZIP area)
Time zoneEastern · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)40.3108, -79.6172

Area codes in this area

724878

These are the area codes that most often serve ZIP 15664 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

15634 Grapeville · 1.2 mi15611 Adamsburg · 1.9 mi15675 Penn · 1.9 mi15644 Jeannette · 2.5 mi15665 Manor · 3.1 mi15692 Westmoreland City · 3.5 mi15617 Arona · 3.6 mi15691 Wendel · 3.6 mi

About ZIP 15664

ZIP code 15664 is assigned to Mammoth, Pennsylvania. It lies in Westmoreland County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 15634 (Grapeville), about 1.2 miles away.

Every address in 15664 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources