West Mifflin, Pennsylvania
Location in Allegheny County and the U.S. state of Pennsylvania.
Location in Allegheny County and the U.S. state of Pennsylvania.
Coordinates: 40°22′5″N 79°53′51″W / 40.36806°N 79.89750°W / 40.36806; -79.89750
Country United States
State Pennsylvania
Incorporated1788 (Mifflin Township)
 Dec. 11, 1942[1] (Borough)
 • MayorChris Kelly
 • CouncilJohn Inglis
Karen Santoro
Michael Moses
Robert Kostelnik
Joyce Kushner
Steve Marone
Scott Stephenson
 • Borough ManagerBrian Kamauf
 • Total14.50 sq mi (37.56 km2)
 • Land14.21 sq mi (36.79 km2)
 • Water0.29 sq mi (0.76 km2)  1.8%
 • Total19,589
 • Estimate 
 • Density1,386.67/sq mi (535.38/km2)
Time zoneUTC-5 (EST)
 • Summer (DST)UTC-4 (EDT)
ZIP code
Area code878
FIPS code42-83512

West Mifflin is a borough in Allegheny County, Pennsylvania, United States, located southeast of downtown Pittsburgh. The population was 19,589 at the 2020 census.[5] 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.[6]

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.[citation needed]


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.

Surrounding and adjacent neighborhoods

West Mifflin has ten land borders, including the Pittsburgh neighborhoods of Lincoln Place and Hays as well as Munhall and Whitaker, to the north, Duquesne to the east, Dravosburg to the southeast, Jefferson Hills and Pleasant Hills to the south, Baldwin to the west and also a short border with Clairton to the south.

Three segments of West Mifflin run along the Monongahela River. Adjacent to these areas across the river are Braddock, North Braddock, McKeesport and Glassport.


Historical population
2019 (est.)19,699[3]−3.0%

As of the census[11] of 2000, there were 22,464 people, 9,509 households, and 6,475 families residing in the borough. The population density was 1,586.2 inhabitants per square mile (612.4/km2). There were 9,966 housing units at an average density of 703.7 per square mile (271.7/km2). The racial makeup of the borough was 89.64% White, 8.85% African American, 0.12% Native American, 0.25% Asian, 0.06% Pacific Islander, 0.25% from other races, and 0.84% from two or more races. Hispanic or Latino of any race were 0.57% of the population.

There were 9,509 households, out of which 26.8% had children under the age of 18 living with them, 50.6% were married couples living together, 13.7% had a female householder with no husband present, and 31.9% were non-families. 29.0% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.89.

In the borough the population was spread out, with 21.5% under the age of 18, 6.9% from 18 to 24, 26.2% from 25 to 44, 23.8% from 45 to 64, and 21.6% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 89.4 males. For every 100 females age 18 and over, there were 84.3 males.

The median income for a household in the borough was $36,130, and the median income for a family was $46,192. Males had a median income of $36,984 versus $26,529 for females. The per capita income for the borough was $18,140. About 8.8% of families and 10.2% of the population were below the poverty line, including 16.6% of those under age 18 and 9.1% of those age 65 or over. The unemployment rate is just over 6%.[12]


Coal mining in the area has affected the flow and water quality of small streams. Land developers have produced more level ground by clean-filling ravines and other small parcels of land to improve the land usage Toxic waste dump areas[13][14] are monitored with water quality improvement with bioremediation successfully implemented. West Mifflin operates its own sewage treatment facility. The Environmental Protection agency regulates 78 facilities for environmental compliance.[15] Asbestos waste and radioactive waste and controls were addressed in 1991.[16]

Government and politics

Presidential Elections Results[17][18][19]
Year Republican Democratic Third Parties
2020 48% 5,397 50% 5,703 1% 126
2016 49% 4,896 50% 4,930 1% 117
2012 42% 4,171 56% 5,568 2% 120


Seven schools exist in West Mifflin: four public schools and three private schools. West Mifflin public schools belong to one district-West Mifflin Area School District. School students in the neighboring boroughs of Whitaker and Duquesne also attend school in the West Mifflin School District.

There are two West Mifflin elementary schools, one West Mifflin middle school, one West Mifflin High School, and 13 West Mifflin preschools.

Schools in West Mifflin, Pennsylvania
Name Grade level Address Enrollment Type
Calvary Baptist Preschool & Kindergarten Day Care through K 120 Anborn Drive 7 Private
Clara Barton Elementary School K-3 764 Beverly Drive 222 Public
Cornerstone Christian Preparatory Academy Pre-K–12 1900 Clairton Road 251 Private
Homeville Elementary School K-3 4315 Eliza Street 395 Public
Walnut Grove Christian School Pre-K-6 44 Adams Avenue 251 Private
West Mifflin Middle School 4–8 91 Commonwealth Avenue 641 Public
West Mifflin Area High School 9–12 91 Commonwealth Avenue 1162 Public[20][21]

New England Elementary has been closed since June 2012. Saint Agnes School has been closed since June 2019. New Emerson has been closed since 2020. Prior to July 2016, Wilson Christian Academy existed at 1900 Clairton Road. It was merged into Cornerstone Christian Preparatory Academy, which is currently at that location.

West Mifflin school administrators' use of school credit cards for meals has been called into question.[22] The West Mifflin School District charges tuition for nearby Duquesne students to attend.[23]

All-State Career School has a campus in West Mifflin. Class A CDL licenses have been in-demand in the area with the rise of fracking.[24]

Community College of Allegheny County also has its South Campus in the borough, at 1750 Clairton Road.


West Mifflin is accessible primarily by road, though no Interstate highways pass through the area. The main road passing through most of the area is Pennsylvania Route 885, which intersects with Pennsylvania Route 51 nearby in the borough of Whitehall.

West Mifflin is the location of Allegheny County Airport, a general aviation airport; as a result, most of West Mifflin is in Class D airspace. The nearest airports with commercial service are Pittsburgh International Airport and Arnold Palmer Regional Airport.


  1. ^ "Allegheny County - 2nd class" (PDF). Pennsylvania Historical and Museum Commission. Retrieved 2007-05-24.
  2. ^ "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 28, 2020.
  3. ^ a b "Population and Housing Unit Estimates". United States Census Bureau. May 24, 2020. Retrieved May 27, 2020.
  4. ^ "West Mifflin PA ZIP Code". zipdatamaps.com. 2023. Retrieved January 26, 2023.
  5. ^ "Explore Census Data". data.census.gov.
  6. ^ Ackerman, Jan (May 10, 1984). "Town names carry bit of history". Pittsburgh Post-Gazette. p. 6. Retrieved 31 October 2015.
  7. ^ "Number of Inhabitants: Pennsylvania" (PDF). 18th Census of the United States. U.S. Census Bureau. Retrieved 22 November 2013.
  8. ^ "Pennsylvania: Population and Housing Unit Counts" (PDF). U.S. Census Bureau. Retrieved 22 November 2013.
  9. ^ "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
  10. ^ "Annual Estimates of the Resident Population". U.S. Census Bureau. Retrieved 22 November 2013.
  11. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
  12. ^ "4413 Everlawn St, West Mifflin, PA, 15122". Real Estate Trac. Archived from the original on 2015-06-15. Retrieved 2015-06-13.
  13. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2015-06-15. Retrieved 2015-06-13.((cite web)): CS1 maint: archived copy as title (link)
  14. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2015-06-16. Retrieved 2015-06-13.((cite web)): CS1 maint: archived copy as title (link)
  15. ^ "West Mifflin, Pennsylvania EPA Regulated Facilities". Find The Data. Archived from the original on July 2, 2015. Retrieved 2015-06-13.
  16. ^ "RCED-91-157 Nuclear Health and Safety: Environmental, Health, and Safety Practices at Naval Reactors Facilities" (PDF). gao.gov. Retrieved February 4, 2024.
  17. ^ EL. "2012 Allegheny County election". Pittsburgh Tribune-Review. Retrieved 15 October 2017.
  18. ^ EL. "2016 Pennsylvania general election results". Pittsburgh Post-Gazette. Retrieved 15 October 2017.
  19. ^ "Election Night Reporting". results.enr.clarityelections.com.
  20. ^ "West Mifflin Schools". Education.com. Retrieved 2015-06-13.
  21. ^ "West Mifflin Area High School in WEST MIFFLIN, PA". US News. Retrieved 2015-06-13.
  22. ^ "West Mifflin school officials' meal costs questioned". Pittsburgh Post-Gazette. December 12, 2014. Retrieved 2015-06-13.
  23. ^ "West Mifflin school board authorizes legal action against state, former administrator". Pittsburgh Post-Gazette. Retrieved 2015-06-13.
  24. ^ "Marcellus Shale: Creating Job Opportunities for Class A CDL Drivers". All-State Career School. Archived from the original on September 27, 2014. Retrieved October 30, 2012.

Further reading

Preceded byBrentwood Bordering communitiesof Pittsburgh Succeeded byMunhall