Population 8 · Census ACS 2020–24
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Population and households in ZIP 15621
Household size in ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.62 | 2.37 | 2.51 | 2.68 |
| 2010–14 | 2.60 | 2.35 | 2.53 | 2.73 |
| 2015–19 | 2.15 | 2.29 | 2.50 | 2.71 |
| 2020–24 | 1.81 | 2.30 | 2.46 | 2.65 |
| Change | −0.81 | −0.07 | −0.05 | −0.03 |
Households in ZIP 15621 are small: just 1.81 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 dropped from 2.62 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 44.5 | 42.5 | 40.3 | 37.7 |
| 2010–14 | 46.0 | 43.0 | 41.0 | 38.6 |
| 2015–19 | 45.4 | 43.7 | 41.8 | 39.6 |
| 2020–24 | 56.8 | 43.9 | 42.0 | 40.1 |
| Change | +12.3 | +1.4 | +1.7 | +2.3 |
ZIP 15621 skews older: half of its residents are older than 56.8, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1.6% | 8.9% | 10.5% | 12.3% |
| 2010–14 | 6.1% | 8.8% | 10.6% | 12.3% |
| 2015–19 | 3.8% | 8.4% | 10.5% | 11.6% |
| 2020–24 | 7.6% | 8.8% | 10.7% | 11.6% |
| Change | +6.0 pts | −0.0 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 15621: 7.6% of households, against 11.6% nationally.
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 ZIP 15621
Renters in ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.5% | 28.5% | 29.0% | 33.3% |
| 2010–14 | 20.9% | 29.9% | 30.5% | 35.6% |
| 2015–19 | 12.8% | 30.3% | 31.1% | 36.0% |
| 2020–24 | 15.5% | 29.3% | 30.7% | 34.8% |
| Change | +7.1 pts | +0.8 pts | +1.7 pts | +1.5 pts |
Only 15.5% of households in ZIP 15621 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 46.1% have no mortgage at all, above the national share of 39.8%.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 10.7% | 10.3% | 11.4% |
| 2010–14 | 2.2% | 10.4% | 10.5% | 11.4% |
| 2015–19 | 15.5% | 10.5% | 10.7% | 11.1% |
| 2020–24 | 10.2% | 10.0% | 9.1% | 9.6% |
| Change | +3.8 pts | −0.7 pts | −1.2 pts | −1.8 pts |
Vacancy in ZIP 15621 is close to the national rate: 10.2% of homes are empty, against 9.6%.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1938 | 1960 | 1963 | 1974 |
| 2010–14 | 1938 | 1961 | 1964 | 1975 |
| 2015–19 | 1949 | 1962 | 1965 | 1977 |
| 2020–24 | 1950 | 1964 | 1967 | 1980 |
| Change | +12 | +4 | +4 | +6 |
The housing in ZIP 15621 is old by national standards: the median home dates to 1950, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $375 | $720 | $829 | $965 |
| 2010–14 | $720 | $801 | $923 | $1,040 |
| 2015–19 | $644 | $922 | $1,039 | $1,213 |
| 2020–24 | $930 | $1,162 | $1,323 | $1,571 |
| Change | +$555 | +$442 | +$494 | +$606 |
Rent in ZIP 15621 runs $930 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 19.2% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 ZIP 15621
Bachelor's degrees in ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.7% | 29.5% | 27.2% | 28.4% |
| 2010–14 | 19.6% | 31.7% | 28.7% | 29.6% |
| 2015–19 | 19.6% | 35.2% | 31.8% | 32.1% |
| 2020–24 | 14.8% | 39.0% | 35.6% | 35.6% |
| Change | +0.2 pts | +9.5 pts | +8.3 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 15621: 14.8% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 94.0% | 90.8% | 87.3% | 84.9% |
| 2010–14 | 93.3% | 92.3% | 88.8% | 86.1% |
| 2015–19 | 94.2% | 93.8% | 90.3% | 87.7% |
| 2020–24 | 84.9% | 95.0% | 91.8% | 89.3% |
| Change | −9.2 pts | +4.2 pts | +4.5 pts | +4.3 pts |
Just over one in seven adults in ZIP 15621 never finished high school, more than nationally: 84.9% have a diploma or equivalent, against 89.3% across the U.S.
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 ZIP 15621
| Period | ZIP 15621 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.2% | 6.9% | 7.5% | 8.1% |
| 2010–14 | 8.4% | 7.5% | 8.8% | 9.4% |
| 2015–19 | 8.8% | 4.9% | 5.5% | 5.6% |
| 2020–24 | 0.0% | 5.0% | 5.4% | 5.4% |
| Change | −8.2 pts | −1.9 pts | −2.1 pts | −2.7 pts |
The survey found almost no one in ZIP 15621 out of work and looking, against 5.4% of the labor force 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).
ZIP 15621 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 15621 | 1.81 | 56.8 | 7.6% | 15.5% | 10.2% | 1950 | $930 | 14.8% | 84.9% | 0.0% |
| ZIP 15689 | 1.93 | 57.5 | 3.7% | 13.5% | 5.7% | 1967 | $903 | 18.8% | 96.4% | 3.7% |
| ZIP 15676 | 2.02 | 48.8 | 8.5% | 19.6% | 16.8% | 1965 | $1,082 | 27.0% | 97.9% | 0.0% |
| ZIP 15616 | 2.15 | 56.8 | 7.0% | 7.0% | 8.2% | 1985 | $1,063 | 25.7% | 100.0% | 0.0% |
| ZIP 15666 | 2.18 | 49.0 | 7.3% | 23.0% | 6.9% | 1963 | $865 | 21.4% | 93.3% | 4.0% |
| ZIP 15693 | 2.50 | 46.8 | 5.3% | 32.5% | 5.7% | 1962 | $1,026 | 26.4% | 87.4% | 0.3% |
| ZIP 15697 | 2.18 | 44.1 | 12.6% | 33.5% | 14.7% | 1960 | $873 | 21.6% | 97.0% | 0.1% |
| ZIP 15638 | 2.03 | 59.0 | 2.0% | 15.8% | 8.2% | 1965 | $1,005 | 41.9% | 89.6% | 7.6% |
| ZIP 15639 | 2.40 | 45.8 | 8.2% | 21.3% | 8.9% | 1971 | $1,836 | 24.5% | 97.6% | 4.2% |
| ZIP 15688 | 2.06 | 48.6 | 4.3% | 26.0% | 10.1% | 1983 | $1,409 | 28.0% | 96.4% | 8.1% |
| ZIP 15610 | 2.17 | 54.2 | 6.8% | 11.9% | 11.4% | 1976 | $906 | 21.9% | 94.0% | 6.2% |
All figures 2020–24.
Zip codes with similar populations: 54543, WI · 47021, IN · 47617, IN · 48175, MI · 01086, MA · 48862, MI · 50031, IA · 50137, IA · 50608, IA · 52252, IA
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 ZIP 15621. 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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