West Mifflin, Pennsylvania Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of West Mifflin, Pennsylvania is 19,338 as of the 2023 American Community Survey, making it the 33rd-largest city in Pennsylvania. The median household income is $70,335, the median home value is $131,400, and the median age is 44.7.
The population has declined 6.9% since 2010 (20,309 → 18,902).
19,338
Population
1360
People / sq mi
$70,335
Median Income
$131,400
Median Home Value
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West Mifflin covers 14.2 sq mi of land at 1360 people per square mile.
About West Mifflin, PA
Housing cost is the defining feature of West Mifflin: the median home is valued at $131,400. With 19,338 residents, West Mifflin is a city in Pennsylvania. It ranks #33 among cities in Pennsylvania by population.
The typical household here earns about $70,335, below the US median of $78,538. The poverty rate is 7.7%, below the national 12.4%. Housing costs are among the lowest of comparable places: a median home value of $131,400, with typical rent around $748.
Fewer adults hold degrees here than in most comparable places — 24.2%, below the national 35.0%. Around 12.1% of workers work from home, below the national 14.0%, and the average commute runs about 28 minutes each way.
West Mifflin borough Population History (2010-2024)
The city of West Mifflin borough had a population of 20,309 in 2010 and 18,902 in 2024, a -6.9% growth over 14 years. The peak was 20,320 in 2011. Average annual growth rate: -0.51%.
18,902
Population (2024)
20,309
Population (2010)
20,320
Peak (2011)
-0.51%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 20,309 |
| 2011 | 20,320 |
| 2012 | 20,312 |
| 2013 | 20,286 |
| 2014 | 20,209 |
| 2015 | 20,056 |
| 2016 | 19,939 |
| 2017 | 19,795 |
| 2018 | 19,681 |
| 2019 | 19,699 |
| 2020 | 19,571 |
| 2021 | 19,386 |
| 2022 | 19,155 |
| 2023 | 18,995 |
| 2024 | 18,902 |
Race & Ethnicity
| White | 81.9% |
| Black or African American | 10.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.5% |
| Two or More Races | 0.0% |
Economy & Income
$70,335
Median Household Income
$36,493
Per Capita Income
7.7%
Poverty Rate
5.4%
Unemployment Rate
Housing
$131,400
Median Home Value
$748
Median Rent
78.2%
Owner-Occupied
Education
94.8%
High School+
24.2%
Bachelor's+
Commute
5.5%
Drive Alone
71.7%
Public Transit
12.1%
Work From Home
28.1 min
Avg Commute
Community Profile
10.9%
Foreign Born
93.5%
Non-English at Home
7.3%
Veterans
16.4%
With Disability
97.2%
Health Insurance
93.7%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 27.5% |
| Finance, Insurance & Real Estate | 13.5% |
| Information | 11.5% |
| Education, Health Care & Social Services | 9.0% |
| Manufacturing | 6.7% |
| Arts, Entertainment & Food Services | 6.3% |
| Construction | 6.3% |
| Retail Trade | 4.9% |
| Public Administration | 3.1% |
| Transportation & Warehousing | 0.8% |
Largest cities in Pennsylvania
Largest counties in Pennsylvania
Part of Pennsylvania
Metro areas in Pennsylvania
City rankings
Frequently Asked Questions
West Mifflin, Pennsylvania has a population of 19,338 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest city in Pennsylvania.
The median household income in West Mifflin, Pennsylvania is $70,335, with 7.7% of residents living below the federal poverty level.
The median home value in West Mifflin, Pennsylvania is $131,400, with median monthly rent at $748 and a homeownership rate of 78.2%.
The median age in West Mifflin, Pennsylvania is 44.7 years. The population is 49.6% male and 50.4% female.
The population has declined 6.9% since 2010 (20,309 → 18,902).
Where to stay in West Mifflin
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.