Population 10,716 · Census ACS 2020–24
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Population and households in ZIP 21911
Household size in ZIP 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.83 | 2.64 | 2.68 | 2.68 |
| 2010–14 | 2.91 | 2.68 | 2.73 | 2.73 |
| 2015–19 | 2.82 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.78 | 2.57 | 2.68 | 2.65 |
| Change | −0.05 | −0.07 | +0.01 | −0.03 |
Households in ZIP 21911 average 2.78 people, a bit above the national 2.65, so families with children are somewhat more common here. Since 2006–10, household size has edged down from 2.83, in line with the national trend. Households are largest in the north and smallest in the south.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.1 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 40.2 | 39.3 | 39.3 | 38.6 |
| 2015–19 | 39.7 | 40.3 | 40.2 | 39.6 |
| 2020–24 | 41.9 | 40.4 | 40.6 | 40.1 |
| Change | +3.8 | +1.9 | +2.1 | +2.3 |
ZIP 21911 skews a little older than the country: its median age is 41.9, against 40.1 nationally. The Philadelphia area as a whole looks much the same. The median age has climbed from 38.1 in 2006–10, mirroring the country.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.0% | 12.2% | 12.5% | 12.3% |
| 2010–14 | 9.1% | 11.8% | 12.6% | 12.3% |
| 2015–19 | 10.1% | 11.7% | 11.7% | 11.6% |
| 2020–24 | 11.0% | 12.1% | 11.7% | 11.6% |
| Change | −0.0 pts | −0.1 pts | −0.9 pts | −0.6 pts |
Single parents head just over one in ten households in ZIP 21911 (11.0%), close to the national share of 11.6%. Single parents are less common here than in the Philadelphia area overall (12.1%).
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 21911
Renters in ZIP 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.3% | 30.2% | 31.0% | 33.3% |
| 2010–14 | 24.5% | 32.1% | 32.9% | 35.6% |
| 2015–19 | 20.3% | 32.7% | 33.1% | 36.0% |
| 2020–24 | 19.0% | 33.2% | 32.4% | 34.8% |
| Change | −2.3 pts | +3.0 pts | +1.4 pts | +1.5 pts |
ZIP 21911 is largely a place of homeowners: only 19.0% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 31.7% have no mortgage at all, below the national share of 39.8%. The renter share is down 2.3 points from 2006–10, even as the national share rose.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.0% | 9.1% | 9.0% | 11.4% |
| 2010–14 | 7.3% | 9.2% | 8.9% | 11.4% |
| 2015–19 | 6.2% | 9.0% | 8.9% | 11.1% |
| 2020–24 | 4.3% | 6.9% | 7.1% | 9.6% |
| Change | −2.7 pts | −2.2 pts | −1.9 pts | −1.8 pts |
Empty homes are scarce in ZIP 21911: just 4.3% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy is down 2.7 points from 2006–10, mirroring the country.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1982 | 1964 | 1974 | 1974 |
| 2010–14 | 1982 | 1965 | 1975 | 1975 |
| 2015–19 | 1982 | 1965 | 1976 | 1977 |
| 2020–24 | 1986 | 1968 | 1978 | 1980 |
| Change | +4 | +4 | +4 | +6 |
Homes in ZIP 21911 are newer than the national norm: the median home was built in 1986, versus 1980 across the U.S. The median year built has moved up from 1982 in 2006–10, a sign of steady new building. Newer construction is concentrated in the north, while the south has the oldest housing.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $904 | $1,049 | $1,249 | $965 |
| 2010–14 | $1,086 | $1,147 | $1,363 | $1,040 |
| 2015–19 | $1,124 | $1,281 | $1,576 | $1,213 |
| 2020–24 | $1,271 | $1,631 | $1,869 | $1,571 |
| Change | +$367 | +$582 | +$620 | +$606 |
Rent in ZIP 21911 runs $1,271 a month at the median, utilities included, below the U.S. median of $1,571. Rent has climbed $367 a month since 2006–10, up 41%, a slower climb than the nation's. The typical renter here spends 24.6% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the northeast; the highest are in the northwest.
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 21911
Bachelor's degrees in ZIP 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.0% | 32.7% | 36.3% | 28.4% |
| 2010–14 | 16.2% | 34.4% | 37.7% | 29.6% |
| 2015–19 | 21.2% | 37.9% | 40.5% | 32.1% |
| 2020–24 | 24.1% | 42.3% | 43.4% | 35.6% |
| Change | +5.1 pts | +9.6 pts | +7.1 pts | +7.2 pts |
Fewer adults in ZIP 21911 have a four-year degree than in the country as a whole: 24.1%, against 35.6% nationally. The share with a degree has risen 5.1 points since 2006–10, in line with the national trend. ZIP 21911 has a lower share of college graduates than at least four in five Maryland ZIP codes.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 86.6% | 87.5% | 88.0% | 84.9% |
| 2010–14 | 86.5% | 88.9% | 89.1% | 86.1% |
| 2015–19 | 89.4% | 90.5% | 90.2% | 87.7% |
| 2020–24 | 90.0% | 91.9% | 90.9% | 89.3% |
| Change | +3.3 pts | +4.4 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21911 is close to the national rate: 90.0% of adults have a diploma or equivalent, against 89.3%. The rate is lower than in the wider Philadelphia area (91.9%). Since 2006–10, the share with a diploma has risen 3.3 points, mirroring the country.
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 21911
| Period | ZIP 21911 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 8.4% | 6.5% | 8.1% |
| 2010–14 | 6.8% | 10.2% | 8.1% | 9.4% |
| 2015–19 | 5.3% | 6.3% | 5.1% | 5.6% |
| 2020–24 | 5.4% | 6.1% | 5.0% | 5.4% |
| Change | −1.3 pts | −2.3 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21911 is the same as the national rate: 5.4% of the labor force. The rate is lower than in the wider Philadelphia area (6.1%). 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 21911 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 21911 | 2.78 | 41.9 | 11.0% | 19.0% | 4.3% | 1986 | $1,271 | 24.1% | 90.0% | 5.4% |
| ZIP 21917 | 2.71 | 41.7 | 12.2% | 11.9% | 7.9% | 1978 | $1,277 | 23.1% | 86.4% | 3.9% |
| ZIP 19362 | 2.82 | 40.1 | 3.7% | 13.9% | 4.2% | 1987 | $1,242 | 22.9% | 84.0% | 4.3% |
| ZIP 21904 | 2.62 | 42.3 | 10.1% | 10.8% | 10.4% | 1986 | $1,432 | 23.3% | 92.6% | 7.4% |
| ZIP 21918 | 2.34 | 47.1 | 10.2% | 12.8% | 2.0% | 1989 | $1,071 | 20.1% | 88.6% | 5.5% |
| ZIP 19363 | 2.92 | 39.8 | 9.4% | 25.3% | 5.1% | 1988 | $1,321 | 35.3% | 86.4% | 3.8% |
| ZIP 21901 | 2.56 | 39.9 | 13.3% | 26.8% | 7.1% | 1993 | $1,518 | 34.1% | 92.6% | 5.6% |
| ZIP 21903 | 2.37 | 45.1 | 7.3% | 26.9% | 3.5% | 1980 | $1,060 | 19.8% | 92.3% | 9.1% |
| ZIP 17563 | 3.48 | 31.4 | 11.3% | 20.7% | 3.7% | 1978 | $1,425 | 9.4% | 71.2% | 3.5% |
| ZIP 21914 | 2.59 | 35.5 | 8.7% | 7.9% | 18.4% | 1973 | $1,522 | 36.2% | 94.8% | 24.4% |
| ZIP 21902 | 1.81 | 57.9 | 6.9% | 53.9% | 8.5% | 1986 | $799 | 18.9% | 88.4% | 8.3% |
All figures 2020–24.
Zip codes with similar populations: 87004, NM · 17340, PA · 17551, PA · 19085, PA · 19350, PA · 19526, PA · 75428, TX · 75835, TX · 77094, TX · 84653, UT
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 21911. 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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