Population 1,238,177 · Census ACS 2020–24
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Population and households in Allegheny County
Household size in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.32 | 2.37 | 2.51 | 2.68 |
| 2010–14 | 2.31 | 2.35 | 2.53 | 2.73 |
| 2015–19 | 2.24 | 2.29 | 2.50 | 2.71 |
| 2020–24 | 2.28 | 2.30 | 2.46 | 2.65 |
| Change | −0.04 | −0.07 | −0.05 | −0.03 |
Households in Allegheny County are small: just 2.28 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has edged down from 2.32 in 2006–10, in line with the national trend.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.7 | 42.5 | 40.3 | 37.7 |
| 2010–14 | 41.8 | 43.0 | 41.0 | 38.6 |
| 2015–19 | 42.1 | 43.7 | 41.8 | 39.6 |
| 2020–24 | 42.2 | 43.9 | 42.0 | 40.1 |
| Change | +0.5 | +1.4 | +1.7 | +2.3 |
The median resident of Allegheny County is 42.2 years old, a bit older than the national median of 40.1. Still, the population here is younger than in the wider Pittsburgh area, where the median age is 43.9. The median age has crept up from 41.7 in 2006–10, a smaller shift than nationally.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.2% | 8.9% | 10.5% | 12.3% |
| 2010–14 | 9.0% | 8.8% | 10.6% | 12.3% |
| 2015–19 | 8.5% | 8.4% | 10.5% | 11.6% |
| 2020–24 | 9.2% | 8.8% | 10.7% | 11.6% |
| Change | −0.0 pts | −0.0 pts | +0.2 pts | −0.6 pts |
Single-parent households are less common in Allegheny County than nationally: 9.2%, against 11.6%. The Pittsburgh area as a whole looks much the same.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Allegheny County
Renters in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.0% | 28.5% | 29.0% | 33.3% |
| 2010–14 | 34.7% | 29.9% | 30.5% | 35.6% |
| 2015–19 | 35.7% | 30.3% | 31.1% | 36.0% |
| 2020–24 | 34.8% | 29.3% | 30.7% | 34.8% |
| Change | +1.8 pts | +0.8 pts | +1.7 pts | +1.5 pts |
Renting in Allegheny County is just as common as it is nationally: 34.8% of households rent. Renters make up a bigger share here than in the Pittsburgh area as a whole (29.3%). Among homeowners, 43.1% have no mortgage at all, above the national share of 39.8%. The renter share has risen 1.8 points since 2006–10, in line with the national trend.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.5% | 10.7% | 10.3% | 11.4% |
| 2010–14 | 10.7% | 10.4% | 10.5% | 11.4% |
| 2015–19 | 10.2% | 10.5% | 10.7% | 11.1% |
| 2020–24 | 10.4% | 10.0% | 9.1% | 9.6% |
| Change | −1.1 pts | −0.7 pts | −1.2 pts | −1.8 pts |
Vacancy in Allegheny County is close to the national rate: 10.4% of homes are empty, against 9.6%. Vacancy is down 1.1 points from 2006–10, as it has nationally.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1957 | 1960 | 1963 | 1974 |
| 2010–14 | 1958 | 1961 | 1964 | 1975 |
| 2015–19 | 1959 | 1962 | 1965 | 1977 |
| 2020–24 | 1961 | 1964 | 1967 | 1980 |
| Change | +4 | +4 | +4 | +6 |
The housing in Allegheny County is old by national standards: the median home dates to 1961, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1957 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, the oldest in the center.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $781 | $720 | $829 | $965 |
| 2010–14 | $875 | $801 | $923 | $1,040 |
| 2015–19 | $1,021 | $922 | $1,039 | $1,213 |
| 2020–24 | $1,305 | $1,162 | $1,323 | $1,571 |
| Change | +$523 | +$442 | +$494 | +$606 |
The median renter in Allegheny County pays $1,305 a month for rent and utilities, below the national median of $1,571. Locally, though, rents here are higher than in the Pittsburgh area overall ($1,162). Rents are up $523 a month from 2006–10, a 67% jump, faster than rents rose nationally. Rent takes 29.8% of the typical renter's income, just under the 30% mark often used to define affordable rent.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Allegheny County
Bachelor's degrees in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 35.6% | 29.5% | 27.2% | 28.4% |
| 2010–14 | 38.1% | 31.7% | 28.7% | 29.6% |
| 2015–19 | 42.4% | 35.2% | 31.8% | 32.1% |
| 2020–24 | 46.6% | 39.0% | 35.6% | 35.6% |
| Change | +11.0 pts | +9.5 pts | +8.3 pts | +7.2 pts |
Allegheny County is highly educated: nearly half of adults 25 and older (46.6%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 11.0 points, mirroring the country. Few Pennsylvania counties have a higher share of college graduates: only three of 67.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.0% | 90.8% | 87.3% | 84.9% |
| 2010–14 | 93.4% | 92.3% | 88.8% | 86.1% |
| 2015–19 | 94.5% | 93.8% | 90.3% | 87.7% |
| 2020–24 | 95.5% | 95.0% | 91.8% | 89.3% |
| Change | +3.6 pts | +4.2 pts | +4.5 pts | +4.3 pts |
High school completion is high in Allegheny County: 95.5% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 3.6 points from 2006–10, mirroring the country. Only two of Pennsylvania's 67 counties have a higher share of high school graduates.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Allegheny County
| Period | Allegheny County | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.9% | 6.9% | 7.5% | 8.1% |
| 2010–14 | 7.8% | 7.5% | 8.8% | 9.4% |
| 2015–19 | 4.9% | 4.9% | 5.5% | 5.6% |
| 2020–24 | 5.0% | 5.0% | 5.4% | 5.4% |
| Change | −1.9 pts | −1.9 pts | −2.1 pts | −2.7 pts |
At 5.0%, unemployment in Allegheny County is close to the national rate of 5.4%. Unemployment is down 1.9 points from 2006–10, as it has nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Allegheny County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Allegheny County | 2.28 | 42.2 | 9.2% | 34.8% | 10.4% | 1961 | $1,305 | 46.6% | 95.5% | 5.0% |
| Westmoreland County | 2.26 | 47.1 | 8.1% | 21.6% | 8.4% | 1966 | $990 | 33.0% | 95.6% | 4.7% |
| Hancock County | 2.22 | 45.3 | 10.2% | 25.5% | 9.4% | 1961 | $796 | 20.4% | 91.3% | 8.0% |
| Brooke County | 2.19 | 47.2 | 8.1% | 25.4% | 9.2% | 1964 | $696 | 23.4% | 93.4% | 6.3% |
| Jefferson County | 2.35 | 44.2 | 11.5% | 29.5% | 12.4% | 1959 | $895 | 20.6% | 92.0% | 4.9% |
| Harrison County | 2.41 | 44.0 | 9.0% | 23.7% | 17.7% | 1967 | $874 | 11.5% | 90.2% | 4.3% |
| Cambria County | 2.28 | 44.9 | 10.5% | 23.6% | 12.6% | 1958 | $774 | 24.3% | 93.1% | 4.6% |
| Tuscarawas County | 2.44 | 41.5 | 11.3% | 31.1% | 6.8% | 1969 | $911 | 19.8% | 88.1% | 4.2% |
| Blair County | 2.38 | 42.9 | 10.0% | 27.6% | 10.5% | 1961 | $936 | 24.5% | 93.9% | 4.6% |
| Holmes County | 3.44 | 33.9 | 3.6% | 21.0% | 7.9% | 1988 | $870 | 9.9% | 54.8% | 2.2% |
| Huntingdon County | 2.38 | 44.7 | 7.5% | 20.8% | 21.6% | 1969 | $859 | 20.7% | 91.9% | 4.6% |
All figures 2020–24.
Counties with similar populations: Santa Clara County, CA · San Bernardino County, CA · Sacramento County, CA · Pima County, AZ · Travis County, TX · Contra Costa County, CA · Alameda County, CA · Fresno County, CA · Oakland County, MI · Broward County, FL
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Allegheny County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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