West Mifflin, Pennsylvania Demographics & Population 2026
During the 2020–2024 ACS period, West Mifflin, Pennsylvania had a total population of 19,190, the 35th largest borough in Pennsylvania, with a median household income of $76,563, which is 2% lower than the state average. The poverty rate is 11.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 2.0x.
- Unemployment rate of 8.2% is notably above the national average.
West Mifflin Quick Facts
How West Mifflin Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 19,338 | 19,190 | -0.8% |
| Median household income | $70,335 | $76,563 | +8.9% |
| Median home value | $131,400 | $151,600 | +15.4% |
How West Mifflin Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
West Mifflin Rankings in Pennsylvania
Explore Pennsylvania Rankings
Other Cities in Allegheny County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Pittsburgh | 304,759 | $65,742 | 20.1% | $205,800 |
| Bethel Park | 32,881 | $107,090 | 4.0% | $273,400 |
| Monroeville | 28,295 | $79,218 | 10.7% | $209,800 |
| Plum | 26,723 | $98,705 | 3.6% | $227,600 |
| Allison Park | 22,045 | $113,822 | 3.6% | $346,900 |
| Baldwin | 21,057 | $80,983 | 9.5% | $208,400 |
| McKeesport | 17,380 | $34,219 | 32.0% | $72,700 |
| Franklin Park | 15,235 | $176,875 | 0.7% | $485,600 |
| Whitehall | 14,811 | $89,404 | 6.7% | $236,200 |
| Wilkinsburg | 14,027 | $46,416 | 20.4% | $155,500 |
Cities Similar to West Mifflin
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Lansdale | 19,011 | $88,229 | $343,800 | 39.8% | 11.3% |
| Colonial Park | 18,032 | $73,105 | $231,100 | 24.6% | 9.9% |
| West Chester | 20,666 | $78,385 | $490,700 | 59.1% | 20.4% |
| Baldwin | 21,057 | $80,983 | $208,400 | 33.3% | 9.5% |
| Phoenixville | 19,452 | $102,138 | $369,600 | 56.9% | 8.2% |
Population Overview
West Mifflin is a small city located in Pennsylvania, within Allegheny County. The total population is 19,190. It ranks as the 35th most populous out of 1,991 Census-designated places in Pennsylvania.
Age Demographics
The median age in West Mifflin is 43.4 years. This is 6% higher than the state median of 40.9 years.
Economy, Income & Housing
The median household income in West Mifflin is $76,563. This is 2% lower than the state median of $77,971. It is also 5% lower than the national median of $80,734. The poverty rate stands at 11.2%. This is 5% lower than the state poverty rate of 11.7%. The unemployment rate is 8.2%. This is 56% higher than the state rate of 5.3%. The median home value is $151,600. Housing costs are 40% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.0x, West Mifflin is one of the most affordable housing markets in the area. 79.9% of occupied housing units are owner-occupied. This homeownership rate is 15% higher than the state average of 69.3%.
Race & Ethnicity
The largest racial or ethnic group in West Mifflin is White (non-Hispanic), making up 83.8% of the population. Black or African American residents account for 7.3%. The Hispanic or Latino population (3.1%) is well below the state average of 8.7%. The Asian population (0.9%) is well below the state average of 3.8%.
Education
24.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.0%.
Data Sources & Methodology
All demographic data for West Mifflin, Pennsylvania is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of West Mifflin, Pennsylvania?
West Mifflin, Pennsylvania has a population of 19,190 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in West Mifflin, PA?
The median household income in West Mifflin is $76,563, which is 5% lower than the national median of $80,734.
What is the poverty rate in West Mifflin, PA?
The poverty rate in West Mifflin is 11.2%. This means approximately 2,135 residents live below the federal poverty line.
What is the racial makeup of West Mifflin, Pennsylvania?
West Mifflin's population is 83.8% White, 7.3% Black, 3.1% Hispanic/Latino, and 0.9% Asian.
What is the median home value in West Mifflin, PA?
The median home value in West Mifflin is $151,600. The home-value-to-income ratio is 2.0x.
How educated is West Mifflin, Pennsylvania?
24.6% of adults (25+) in West Mifflin hold a bachelor's degree or higher, and 8.2% hold a graduate or professional degree.