Allegheny County's 2026 population is estimated at 1,235,166, reflecting a 0.14% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Allegheny County is the 2nd largest county in Pennsylvania. The 2010 population was 1,223,973 and has grown 0.91% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.6 years
Female: 42.1 years
Male: 39.2 years
There are 1,007,949 adults, (249,886 of whom are seniors) in Allegheny County.
Female: 633,973 (51.2%)
Male: 604,204 (48.8%)
The racial composition of Allegheny County includes 76.06% White, 12.46% Black or African American, 4.35% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 941,697 | 76.06% |
| Black or African American | 154,273 | 12.46% |
| Two or more races | 71,449 | 5.77% |
| Asian | 53,826 | 4.35% |
| Other race | 15,453 | 1.25% |
| Native American | 1,255 | 0.1% |
| Native Hawaiian or Pacific Islander | 224 | 0.02% |
Allegheny County 's average per capita income is $57,377. Household income levels show a median of $78,548. The poverty rate stands at 11.52%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $129,444 | $166,184 |
| Families | $109,346 | $142,875 |
| Households | $78,548 | $110,063 |
| Non Families | $47,733 | $66,794 |
Average Income
Median Household Income
Poverty Rate