Population 61 · Census ACS 2020–24
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Population and households in ZIP 15421
Household size in ZIP 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.30 | 2.37 | 2.51 | 2.68 |
| 2010–14 | 2.78 | 2.35 | 2.53 | 2.73 |
| 2015–19 | 1.93 | 2.29 | 2.50 | 2.71 |
| 2020–24 | 2.28 | 2.30 | 2.46 | 2.65 |
| Change | −0.02 | −0.07 | −0.05 | −0.03 |
ZIP 15421 is a place of small households, averaging 2.28 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. The picture is much the same across the Pittsburgh area.
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 48.9 | 42.5 | 40.3 | 37.7 |
| 2010–14 | 39.9 | 43.0 | 41.0 | 38.6 |
| 2015–19 | 56.0 | 43.7 | 41.8 | 39.6 |
| 2020–24 | 62.3 | 43.9 | 42.0 | 40.1 |
| Change | +13.4 | +1.4 | +1.7 | +2.3 |
With a median age of 62.3, ZIP 15421 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 48.9 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.4% | 8.9% | 10.5% | 12.3% |
| 2010–14 | 3.4% | 8.8% | 10.6% | 12.3% |
| 2015–19 | 1.4% | 8.4% | 10.5% | 11.6% |
| 2020–24 | 9.7% | 8.8% | 10.7% | 11.6% |
| Change | +3.3 pts | −0.0 pts | +0.2 pts | −0.6 pts |
Single parents head about one in ten households in ZIP 15421 (9.7%), a little below the national share of 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 ZIP 15421
Renters in ZIP 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 22.5% | 28.5% | 29.0% | 33.3% |
| 2010–14 | 20.7% | 29.9% | 30.5% | 35.6% |
| 2015–19 | 17.1% | 30.3% | 31.1% | 36.0% |
| 2020–24 | 10.9% | 29.3% | 30.7% | 34.8% |
| Change | −11.6 pts | +0.8 pts | +1.7 pts | +1.5 pts |
Only 10.9% of households in ZIP 15421 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 65.3% have no mortgage at all, well 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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.1% | 10.7% | 10.3% | 11.4% |
| 2010–14 | 35.2% | 10.4% | 10.5% | 11.4% |
| 2015–19 | 34.7% | 10.5% | 10.7% | 11.1% |
| 2020–24 | 21.8% | 10.0% | 9.1% | 9.6% |
| Change | +12.7 pts | −0.7 pts | −1.2 pts | −1.8 pts |
Vacant homes make up 21.8% of the housing in ZIP 15421, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1973 | 1960 | 1963 | 1974 |
| 2010–14 | 1972 | 1961 | 1964 | 1975 |
| 2015–19 | 1973 | 1962 | 1965 | 1977 |
| 2020–24 | 1968 | 1964 | 1967 | 1980 |
| Change | −5 | +4 | +4 | +6 |
The housing in ZIP 15421 is old by national standards: the median home dates to 1968, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. Even so, homes here are newer than in the wider Pittsburgh area, where the median home dates to 1964.
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $477 | $720 | $829 | $965 |
| 2010–14 | $445 | $801 | $923 | $1,040 |
| 2015–19 | $657 | $922 | $1,039 | $1,213 |
| 2020–24 | $1,206 | $1,162 | $1,323 | $1,571 |
| Change | +$729 | +$442 | +$494 | +$606 |
A typical rental in ZIP 15421 costs $1,206 a month with utilities, well below the national median of $1,571. That is in line with the rest of the Pittsburgh area. Rent takes 15.0% of the typical renter's income, comfortably 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 ZIP 15421
Bachelor's degrees in ZIP 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 27.4% | 29.5% | 27.2% | 28.4% |
| 2010–14 | 22.7% | 31.7% | 28.7% | 29.6% |
| 2015–19 | 36.0% | 35.2% | 31.8% | 32.1% |
| 2020–24 | 32.9% | 39.0% | 35.6% | 35.6% |
| Change | +5.5 pts | +9.5 pts | +8.3 pts | +7.2 pts |
College degrees are about as common in ZIP 15421 as nationally: 32.9% of adults 25 and older have a bachelor's or higher, against 35.6%. The share is lower than in the Pittsburgh area overall (39.0%).
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 90.2% | 90.8% | 87.3% | 84.9% |
| 2010–14 | 95.3% | 92.3% | 88.8% | 86.1% |
| 2015–19 | 96.8% | 93.8% | 90.3% | 87.7% |
| 2020–24 | 96.6% | 95.0% | 91.8% | 89.3% |
| Change | +6.4 pts | +4.2 pts | +4.5 pts | +4.3 pts |
High school completion is high in ZIP 15421: 96.6% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 15421
| Period | ZIP 15421 | Pittsburgh area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.6% | 6.9% | 7.5% | 8.1% |
| 2010–14 | 19.6% | 7.5% | 8.8% | 9.4% |
| 2015–19 | 0.0% | 4.9% | 5.5% | 5.6% |
| 2020–24 | 0.0% | 5.0% | 5.4% | 5.4% |
| Change | −14.6 pts | −1.9 pts | −2.1 pts | −2.7 pts |
The survey found almost no one in ZIP 15421 out of work and looking, against 5.4% of the labor force nationally. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's 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 15421 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 15421 | 2.28 | 62.3 | 9.7% | 10.9% | 21.8% | 1968 | $1,206 | 32.9% | 96.6% | 0.0% |
| ZIP 15470 | 2.23 | 59.4 | 2.3% | 13.4% | 27.9% | 1972 | $1,006 | 28.4% | 92.8% | 1.9% |
| ZIP 15437 | 2.36 | 44.1 | 1.3% | 27.8% | 23.8% | 1979 | $1,230 | 27.0% | 95.1% | 1.8% |
| ZIP 15445 | 2.03 | 47.9 | 4.2% | 14.6% | 8.0% | 1965 | $883 | 26.1% | 90.7% | 5.1% |
| ZIP 15456 | 2.11 | 52.3 | 10.8% | 12.5% | 8.0% | 1975 | $720 | 24.4% | 93.2% | 6.1% |
| ZIP 15465 | 2.03 | 54.7 | 15.8% | 7.0% | 6.3% | 1972 | $611 | 23.1% | 93.3% | 9.4% |
| ZIP 15440 | 2.34 | 42.0 | 9.7% | 15.0% | 13.0% | 1984 | $1,206 | 19.9% | 95.3% | 2.2% |
| ZIP 15401 | 2.13 | 44.6 | 11.8% | 36.0% | 10.3% | 1958 | $802 | 22.4% | 88.6% | 5.2% |
| ZIP 15472 | 1.94 | 49.6 | 8.5% | 64.1% | 13.7% | 1958 | $826 | 22.6% | 88.6% | 6.6% |
| ZIP 15436 | 1.98 | 53.5 | 3.4% | 30.3% | 12.0% | 1966 | $756 | 17.5% | 93.4% | 4.1% |
| ZIP 15431 | 2.35 | 43.4 | 9.3% | 19.5% | 14.2% | 1970 | $805 | 15.4% | 89.7% | 4.9% |
All figures 2020–24.
Zip codes with similar populations: 99923, AK · 51011, IA · 51051, IA · 51459, IA · 48434, MI · 47916, IN · 46967, IN · 45624, OH · 77561, TX · 13436, NY
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 15421. 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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