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