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West Mifflin

Borough of West Mifflin
Borough
Kennywood
Location of West Mifflin in Allegheny County, Pennsylvania.
Location of West Mifflin in Allegheny County, Pennsylvania.
Coordinates: 40°22′5″N 79°53′51″W / 40.36806°N 79.89750°W / 40.36806; -79.89750Coordinates: 40°22′5″N 79°53′51″W / 40.36806°N 79.89750°W / 40.36806; -79.89750
Country  United States
Commonwealth  Pennsylvania
County Allegheny
Incorporated 1788 (Mifflin Township)
  Dec. 11, 1942 (Borough)
Government
 • Mayor Chris Kelly
 • Council Michael Moses
Michael Olack
Daniel Davis
Robert Kostelnik
Joyce Kushner
Steve Marone
Scott Stephenson
 • Borough Manager Brian Kamauf
 • Police Chief Kenneth Davies
 • IT Coordinator Andy Quayle
Area
 • Total 14.51 sq mi (37.57 km2)
 • Land 14.21 sq mi (36.81 km2)
 • Water 0.29 sq mi (0.76 km2)  1.8%
Population (2010)
 • Total 20,313
 • Estimate (2016) 19,921
 • Density 1,401.70/sq mi (541.19/km2)
Time zone EST (UTC-5)
 • Summer (DST) EDT (UTC-4)
FIPS code 42-83512
Website www.westmifflinborough.com

West Mifflin is a borough in Allegheny County, Pennsylvania, United States, located southeast of downtown Pittsburgh. The population was 20,313 at the 2010 census. It is named after Thomas Mifflin, 1st Governor of Pennsylvania, signer of the United States Constitution, and 1st Quartermaster General of the United States Army.

Although the borough is heavily residential, it is home to one of America's oldest traditional amusement parks, Kennywood Park. Other employers include advanced naval nuclear propulsion technology research and development facility, Bettis Atomic Power Laboratory; monorail manufacturer Bombardier; US Steel's Mon Valley Works - Irvin Plant; Community College of Allegheny County's South Campus; and the Allegheny County Airport.

According to the United States Census Bureau, the borough has a total area of 14.4 square miles (37 km2), of which 14.2 square miles (37 km2) is land and 0.3 square miles (0.78 km2), or 1.80%, is water. The landscape is largely hilly and wooded, and the borough's eastern boundary is contiguous with the Monongahela River three separate times. Much of the original landscape has been altered as a result of the historic dumping of steel mill byproducts such as slag and fly ash.


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