Home > PA > Allegheny County > Sewickley > Zip 15143

Zip Code 15143 — Sewickley, PA

15143 is a ZIP Code associated with Sewickley, PA, located within Allegheny. The postal region supports an estimated population of 21,851 residents across Data Pending housing units, with a population density of 228.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.572980, -80.147250)

Data MetricLocal Statistic
Postal / Zip Code15143
Primary CitySewickley
State / ProvincePA
CountyAllegheny
Total Population21,851
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density228.6 people/sq mi
TimezoneAmerica/New_York

How 15143 Compares

MetricZIP 15143Allegheny CountyPA State Average
Population21,8511,218,97013,018,637
Median IncomeData PendingN/AN/A
Population Density228.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 15056Leetsdale3.5 mi1,041N/A
Zip 15003Ambridge4.0 mi11,387N/A
Zip 15046Crescent4.4 mi2,141N/A
Zip 15081South Heights4.7 mi404N/A
Zip 15225Pittsburgh5.0 mi1,085N/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 →