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Zip Code 15656 — Leechburg, PA

15656 is a ZIP Code associated with Leechburg, PA, located within Westmoreland. 15656 ranks #10 out of 77 ZIP codes in Westmoreland County by population (and #434 out of 1,832 in PA). The area supports an estimated population of 9,506 residents across Data Pending housing units, with a population density of 115.2 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.641140, -79.619810)

Data MetricLocal Statistic
Postal / Zip Code15656
Primary CityLeechburg
State / ProvincePA
CountyWestmoreland
Total Population9,506
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density115.2 people/sq mi
TimezoneAmerica/New_York

How 15656 Compares

MetricZIP 15656Westmoreland CountyPA State Average
Population9,506362,427 (Total)13,018,637 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density115.2 /sq mi----
County Pop Rank#10 of 77----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 15641Hyde Park1.7 mi464N/A
Zip 15682Schenley3.0 mi234N/A
Zip 15690Vandergrift4.1 mi8,985N/A
Zip 15629East Vandergrift4.2 mi631N/A
Zip 15673North Apollo4.7 mi1,156N/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 →