Home > PA > Westmoreland County > Loyalhanna > Zip 15661

Zip Code 15661 — Loyalhanna, PA

15661 is a ZIP Code associated with Loyalhanna, PA, located within Westmoreland. The postal region supports an estimated population of 858 residents across Data Pending housing units, with a population density of 847.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.321920, -79.360070)

Data MetricLocal Statistic
Postal / Zip Code15661
Primary CityLoyalhanna
State / ProvincePA
CountyWestmoreland
Total Population858
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density847.2 people/sq mi
TimezoneAmerica/New_York

How 15661 Compares

MetricZIP 15661Westmoreland CountyPA State Average
Population858362,42713,018,637
Median IncomeData PendingN/AN/A
Population Density847.2 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 15620Bradenville1.1 mi801N/A
Zip 15696Youngstown2.9 mi218N/A
Zip 15671New Derry3.3 mi671N/A
Zip 15627Derry3.4 mi6,167N/A
Zip 15650Latrobe3.6 mi26,312N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →