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ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2022

ZIP Codes for City of West Mifflin, PA

West Mifflin, PA Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 15122StandardAllegheny20,131
ZIP Code 15123StandardAllegheny0
ZIP Code 15236StandardAllegheny29,724

Timezone(s):Eastern (GMT -05:00)
Population:20,313 (More Details)
Male Population:9,609
Female Population:10,704
Median Age:45
ZIP Codes:3
Area Codes:1
Total Area:745 square miles (county)
Land Area:730 square miles (county)
Water Area:14 square miles (county)

West Mifflin, PA Demographic Information *

Total population20,313
Male population9,609
Female population10,704
Median age (years)44.8
White Population17,580
Black Population2,230
Indian Population14
Asian Population78
Hawaiian Population0
Hispanic Population251
Median age (Male)42.4
Median age (Female)46.7
Total households8,805
Family households (families)5,661
Average household size2.3
Average family size2.87
Total housing units9,462
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 12/1/2022],
  2. Internal Data Creation [Last Updated: 12/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],