Population 190 · Census ACS 2020–24
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Population and households in ZIP 21920
Household size in ZIP 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.82 | 2.64 | 2.68 | 2.68 |
| 2010–14 | 2.53 | 2.68 | 2.73 | 2.73 |
| 2015–19 | 3.16 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.97 | 2.57 | 2.68 | 2.65 |
| Change | +0.15 | −0.07 | +0.01 | −0.03 |
ZIP 21920 is a place of big households: 2.97 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Household size has climbed from 2.82 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.0 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 44.9 | 39.3 | 39.3 | 38.6 |
| 2015–19 | 37.5 | 40.3 | 40.2 | 39.6 |
| 2020–24 | 39.5 | 40.4 | 40.6 | 40.1 |
| Change | +1.5 | +1.9 | +2.1 | +2.3 |
At 39.5, the median age in ZIP 21920 is close to the national median of 40.1, so its age mix looks much like the country's.
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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.5% | 12.2% | 12.5% | 12.3% |
| 2010–14 | 13.0% | 11.8% | 12.6% | 12.3% |
| 2015–19 | 12.2% | 11.7% | 11.7% | 11.6% |
| 2020–24 | 19.8% | 12.1% | 11.7% | 11.6% |
| Change | +11.3 pts | −0.1 pts | −0.9 pts | −0.6 pts |
Single-parent households are common in ZIP 21920: 19.8% of all 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 21920
Renters in ZIP 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.0% | 30.2% | 31.0% | 33.3% |
| 2010–14 | 14.6% | 32.1% | 32.9% | 35.6% |
| 2015–19 | 13.6% | 32.7% | 33.1% | 36.0% |
| 2020–24 | 11.1% | 33.2% | 32.4% | 34.8% |
| Change | −9.9 pts | +3.0 pts | +1.4 pts | +1.5 pts |
ZIP 21920 is overwhelmingly a place of homeowners: only 11.1% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 34.4% have no mortgage at all, below 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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 9.1% | 9.0% | 11.4% |
| 2010–14 | 7.0% | 9.2% | 8.9% | 11.4% |
| 2015–19 | 9.3% | 9.0% | 8.9% | 11.1% |
| 2020–24 | 6.0% | 6.9% | 7.1% | 9.6% |
| Change | −2.3 pts | −2.2 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 21920 than nationally: 6.0%, against 9.6% for the U.S. That is in line with the rest of the Philadelphia area.
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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1977 | 1964 | 1974 | 1974 |
| 2010–14 | 1974 | 1965 | 1975 | 1975 |
| 2015–19 | 1977 | 1965 | 1976 | 1977 |
| 2020–24 | 1980 | 1968 | 1978 | 1980 |
| Change | +3 | +4 | +4 | +6 |
The typical home in ZIP 21920 was built around 1980, the same vintage as the country's housing overall. Homes here are newer than in the wider Philadelphia area, where the median home dates to 1968.
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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,017 | $1,049 | $1,249 | $965 |
| 2010–14 | $696 | $1,147 | $1,363 | $1,040 |
| 2015–19 | $1,204 | $1,281 | $1,576 | $1,213 |
| 2020–24 | $1,353 | $1,631 | $1,869 | $1,571 |
| Change | +$337 | +$582 | +$620 | +$606 |
A typical rental in ZIP 21920 costs $1,353 a month with utilities, below the national median of $1,571. Rent takes 22.3% 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 21920
Bachelor's degrees in ZIP 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 18.0% | 32.7% | 36.3% | 28.4% |
| 2010–14 | 18.3% | 34.4% | 37.7% | 29.6% |
| 2015–19 | 26.6% | 37.9% | 40.5% | 32.1% |
| 2020–24 | 32.1% | 42.3% | 43.4% | 35.6% |
| Change | +14.1 pts | +9.6 pts | +7.1 pts | +7.2 pts |
Nearly a third of adults 25 and older in ZIP 21920 (32.1%) have a bachelor's degree or higher, a little 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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.7% | 87.5% | 88.0% | 84.9% |
| 2010–14 | 84.3% | 88.9% | 89.1% | 86.1% |
| 2015–19 | 91.7% | 90.5% | 90.2% | 87.7% |
| 2020–24 | 84.3% | 91.9% | 90.9% | 89.3% |
| Change | −8.4 pts | +4.4 pts | +2.9 pts | +4.3 pts |
Nearly one in six adults in ZIP 21920 never finished high school, more than nationally: 84.3% 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 21920
| Period | ZIP 21920 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.7% | 8.4% | 6.5% | 8.1% |
| 2010–14 | 4.9% | 10.2% | 8.1% | 9.4% |
| 2015–19 | 3.5% | 6.3% | 5.1% | 5.6% |
| 2020–24 | 1.4% | 6.1% | 5.0% | 5.4% |
| Change | −2.3 pts | −2.3 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 21920 has been strong: just 1.4% of the labor force was out of work and looking, well below the national rate of 5.4%. 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 21920 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 21920 | 2.97 | 39.5 | 19.8% | 11.1% | 6.0% | 1980 | $1,353 | 32.1% | 84.3% | 1.4% |
| ZIP 21921 | 2.62 | 41.8 | 12.1% | 30.4% | 8.1% | 1985 | $1,483 | 28.3% | 91.8% | 5.2% |
| ZIP 19716 | 2.69 | 19.5 | 16.3% | 19.9% | 8.5% | 1965 | $1,408 | 68.8% | 99.9% | 8.5% |
| ZIP 19717 | 3.70 | 19.5 | 3.8% | 72.1% | 26.0% | 2000 | $2,066 | 69.8% | 96.7% | 6.5% |
| ZIP 19711 | 2.57 | 37.8 | 6.7% | 36.1% | 9.4% | 1978 | $1,688 | 54.8% | 95.6% | 5.0% |
| ZIP 19713 | 2.50 | 38.5 | 13.6% | 37.1% | 6.0% | 1972 | $1,504 | 32.5% | 91.8% | 4.1% |
| ZIP 19702 | 2.69 | 39.4 | 13.3% | 38.6% | 4.7% | 1992 | $1,705 | 38.7% | 93.2% | 4.1% |
| ZIP 21901 | 2.56 | 39.9 | 13.3% | 26.8% | 7.1% | 1993 | $1,518 | 34.1% | 92.6% | 5.6% |
| ZIP 19701 | 2.66 | 42.5 | 11.5% | 20.0% | 4.1% | 1996 | $1,814 | 37.7% | 93.3% | 5.2% |
| ZIP 19350 | 2.83 | 43.7 | 9.7% | 11.3% | 4.5% | 1990 | $1,697 | 58.3% | 95.5% | 3.2% |
| ZIP 19352 | 2.99 | 39.2 | 6.0% | 5.9% | 3.5% | 1994 | $1,423 | 46.8% | 96.7% | 5.8% |
All figures 2020–24.
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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 21920. 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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