Mount Oliver, Pennsylvania Demographics & Population 2026
During the 2020–2024 ACS period, Mount Oliver, Pennsylvania had a total population of 3,319, the 430th largest borough in Pennsylvania, with a median household income of $52,297, which is 33% lower than the state average. The poverty rate is 15.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 33% below the state average, indicating significant economic challenges.
- Housing is very affordable with a home-value-to-income ratio of just 1.9x.
Mount Oliver Quick Facts
How Mount Oliver 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 | 3,347 | 3,319 | -0.8% |
| Median household income | $50,379 | $52,297 | +3.8% |
| Median home value | $84,700 | $96,900 | +14.4% |
How Mount Oliver 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 diverse community with significant representation from multiple racial and ethnic groups.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
Mount Oliver 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 |
| West Mifflin | 19,190 | $76,563 | 11.2% | $151,600 |
| 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 |
Cities Similar to Mount Oliver
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Etna | 3,364 | $53,654 | $135,800 | 26.2% | 17.8% |
| Athens | 3,243 | $53,000 | $167,200 | 27.4% | 12.8% |
| Masontown | 3,201 | $53,676 | $126,300 | 16.9% | 31.7% |
| Marienville | 3,163 | $52,029 | $99,100 | 10.1% | 4.6% |
| Slippery Rock | 3,495 | $52,262 | $255,400 | 34.7% | 33.8% |
Population Overview
Mount Oliver is a small community located in Pennsylvania, within Allegheny County. The total population is 3,319. It ranks as the 430th most populous out of 1,991 Census-designated places in Pennsylvania.
Age Demographics
The median age in Mount Oliver is 36.1 years. This is 12% lower than the state median of 40.9 years. With 32.5% of the population under 18, Mount Oliver has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Mount Oliver is $52,297. This is 33% lower than the state median of $77,971. It is also 35% lower than the national median of $80,734. The poverty rate stands at 15.1%. This is 29% higher than the state poverty rate of 11.7%. The unemployment rate is 5.5%. This is 4% higher than the state rate of 5.3%. The median home value is $96,900. Housing costs are 62% lower than the state median of $254,500. With a home-value-to-income ratio of just 1.9x, Mount Oliver is one of the most affordable housing markets in the area. 40.5% of occupied housing units are owner-occupied. This homeownership rate is 42% lower than the state average of 69.3%.
Race & Ethnicity
The largest racial or ethnic group in Mount Oliver is White (non-Hispanic), making up 48.1% of the population. Black or African American residents account for 38.8%. The Black or African American population is significantly higher than the state average (38.8% vs 10.3%). The Hispanic or Latino population (3.8%) is well below the state average of 8.7%. The Asian population (0.7%) is well below the state average of 3.8%.
Education
17.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 50% 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 89.0%.
Data Sources & Methodology
All demographic data for Mount Oliver, 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 Mount Oliver, Pennsylvania?
Mount Oliver, Pennsylvania has a population of 3,319 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mount Oliver, PA?
The median household income in Mount Oliver is $52,297, which is 35% lower than the national median of $80,734.
What is the poverty rate in Mount Oliver, PA?
The poverty rate in Mount Oliver is 15.1%. This means approximately 485 residents live below the federal poverty line.
What is the racial makeup of Mount Oliver, Pennsylvania?
Mount Oliver's population is 48.1% White, 38.8% Black, 3.8% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Mount Oliver, PA?
The median home value in Mount Oliver is $96,900. The home-value-to-income ratio is 1.9x.
How educated is Mount Oliver, Pennsylvania?
17.5% of adults (25+) in Mount Oliver hold a bachelor's degree or higher, and 6.9% hold a graduate or professional degree.