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About Us
Welcome to West Mifflin Borough, Allegheny County, Pennsylvania. Heavily residential, it is home to:
- One of America's oldest traditional amusement parks, Kennywood Park
- Advanced naval nuclear propulsion technology research and development facility, Bettis Atomic Power Laboratory
- Monorail manufacturer Alstom
- U.S. Steel's Monday Valley Works - Irvin Plant
- Community College of Allegheny County's South Campus
- The Allegheny County Airport
- Various other businesses and industries
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Documents & Downloads
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Permit Applications & Guides
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Borough Zoning Map
Access the borough online zoning map.
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Calendar
Stay up to date with Borough events, meetings, and collection schedules using our online calendar.
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Useful Links
Find a variety of resources including representative information.
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Demographics
The Borough of West Mifflin, PA is located in Allegheny County, Pennsylvania, just southeast of Pittsburgh, PA (about 9 miles). The borough has a total area of 14.4 square miles.
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Borough Blog
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History
Mifflin Township is rich with historical facts! It was named after the first Elected Governor of Pennsylvania, Governor Thomas Mifflin (1744 to 1800).
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Coronavirus Disease 2019 (COVID-19)
Find information regarding COVID-19 in Pennsylvania.
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West Mifflin Borough Air Quality Index
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Street Light Outage Report
Duquesne Light Company Street Light Outage Report Form