Population 6,298 · Census ACS 2020–24
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Population and households in ZIP 21904
Household size in ZIP 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.64 | 2.64 | 2.68 | 2.68 |
| 2010–14 | 2.97 | 2.68 | 2.73 | 2.73 |
| 2015–19 | 2.86 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.62 | 2.57 | 2.68 | 2.65 |
| Change | −0.02 | −0.07 | +0.01 | −0.03 |
At 2.62 people per household, ZIP 21904 sits close to the national average of 2.65. Household size is little changed from 2006–10, while the national average fell.
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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.8 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 39.2 | 39.3 | 39.3 | 38.6 |
| 2015–19 | 43.7 | 40.3 | 40.2 | 39.6 |
| 2020–24 | 42.3 | 40.4 | 40.6 | 40.1 |
| Change | +0.6 | +1.9 | +2.1 | +2.3 |
ZIP 21904 skews a little older than the country: its median age is 42.3, against 40.1 nationally. Since 2006–10, the median age has crept up from 41.8, a smaller shift than nationally. Residents skew youngest in the southwest and oldest in the northeast.
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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.9% | 12.2% | 12.5% | 12.3% |
| 2010–14 | 14.6% | 11.8% | 12.6% | 12.3% |
| 2015–19 | 9.3% | 11.7% | 11.7% | 11.6% |
| 2020–24 | 10.1% | 12.1% | 11.7% | 11.6% |
| Change | +2.2 pts | −0.1 pts | −0.9 pts | −0.6 pts |
Single-parent households are a bit less common in ZIP 21904 than nationally: 10.1%, against 11.6%. The single-parent share has risen 2.2 points since 2006–10, even as the national share fell.
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 21904
Renters in ZIP 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.5% | 30.2% | 31.0% | 33.3% |
| 2010–14 | 20.6% | 32.1% | 32.9% | 35.6% |
| 2015–19 | 14.4% | 32.7% | 33.1% | 36.0% |
| 2020–24 | 10.8% | 33.2% | 32.4% | 34.8% |
| Change | −6.6 pts | +3.0 pts | +1.4 pts | +1.5 pts |
ZIP 21904 is overwhelmingly a place of homeowners: only 10.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. More than a third of owners (37.0%) have paid off their mortgages, about the same as nationally. Since 2006–10, the renter share has fallen 6.6 points, 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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.1% | 9.1% | 9.0% | 11.4% |
| 2010–14 | 11.5% | 9.2% | 8.9% | 11.4% |
| 2015–19 | 11.0% | 9.0% | 8.9% | 11.1% |
| 2020–24 | 10.4% | 6.9% | 7.1% | 9.6% |
| Change | +4.3 pts | −2.2 pts | −1.9 pts | −1.8 pts |
About as many homes sit empty in ZIP 21904 as nationally: 10.4%, against 9.6%. The rate is higher than in the Philadelphia area overall (6.9%). Vacancy is up 4.3 points from 2006–10, even as the national rate fell.
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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1980 | 1964 | 1974 | 1974 |
| 2010–14 | 1981 | 1965 | 1975 | 1975 |
| 2015–19 | 1985 | 1965 | 1976 | 1977 |
| 2020–24 | 1986 | 1968 | 1978 | 1980 |
| Change | +6 | +4 | +4 | +6 |
Homes in ZIP 21904 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 1980 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, the oldest in the northeast.
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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $839 | $1,049 | $1,249 | $965 |
| 2010–14 | $881 | $1,147 | $1,363 | $1,040 |
| 2015–19 | $1,083 | $1,281 | $1,576 | $1,213 |
| 2020–24 | $1,432 | $1,631 | $1,869 | $1,571 |
| Change | +$592 | +$582 | +$620 | +$606 |
The median renter in ZIP 21904 pays $1,432 a month for rent and utilities, below the national median of $1,571. Rent has climbed $592 a month since 2006–10, up 71%, faster than rents rose nationally. Rent takes 28.1% 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 ZIP 21904
Bachelor's degrees in ZIP 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.3% | 32.7% | 36.3% | 28.4% |
| 2010–14 | 14.4% | 34.4% | 37.7% | 29.6% |
| 2015–19 | 17.3% | 37.9% | 40.5% | 32.1% |
| 2020–24 | 23.3% | 42.3% | 43.4% | 35.6% |
| Change | +7.9 pts | +9.6 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 21904: 23.3% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. The share with a degree has risen 7.9 points since 2006–10, as it has nationally. ZIP 21904 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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 81.3% | 87.5% | 88.0% | 84.9% |
| 2010–14 | 83.6% | 88.9% | 89.1% | 86.1% |
| 2015–19 | 87.6% | 90.5% | 90.2% | 87.7% |
| 2020–24 | 92.6% | 91.9% | 90.9% | 89.3% |
| Change | +11.3 pts | +4.4 pts | +2.9 pts | +4.3 pts |
About nine in ten adults in ZIP 21904 have finished high school (92.6%), above the national rate of 89.3%. The Philadelphia area as a whole looks much the same. The share with a diploma has risen 11.3 points since 2006–10, 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 21904
| Period | ZIP 21904 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.0% | 8.4% | 6.5% | 8.1% |
| 2010–14 | 5.0% | 10.2% | 8.1% | 9.4% |
| 2015–19 | 8.4% | 6.3% | 5.1% | 5.6% |
| 2020–24 | 7.4% | 6.1% | 5.0% | 5.4% |
| Change | +1.4 pts | −2.3 pts | −1.5 pts | −2.7 pts |
Unemployment runs high in ZIP 21904: 7.4% of the labor force was out of work and looking, against 5.4% nationally. Since 2006–10, unemployment has edged up 1.4 points, even as the national rate fell. 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 21904 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 21904 | 2.62 | 42.3 | 10.1% | 10.8% | 10.4% | 1986 | $1,432 | 23.3% | 92.6% | 7.4% |
| ZIP 21917 | 2.71 | 41.7 | 12.2% | 11.9% | 7.9% | 1978 | $1,277 | 23.1% | 86.4% | 3.9% |
| ZIP 21903 | 2.37 | 45.1 | 7.3% | 26.9% | 3.5% | 1980 | $1,060 | 19.8% | 92.3% | 9.1% |
| ZIP 21911 | 2.78 | 41.9 | 11.0% | 19.0% | 4.3% | 1986 | $1,271 | 24.1% | 90.0% | 5.4% |
| ZIP 21902 | 1.81 | 57.9 | 6.9% | 53.9% | 8.5% | 1986 | $799 | 18.9% | 88.4% | 8.3% |
| ZIP 21918 | 2.34 | 47.1 | 10.2% | 12.8% | 2.0% | 1989 | $1,071 | 20.1% | 88.6% | 5.5% |
| ZIP 21078 | 2.49 | 46.2 | 9.6% | 24.0% | 5.8% | 1985 | $1,649 | 41.5% | 93.9% | 3.9% |
| ZIP 21914 | 2.59 | 35.5 | 8.7% | 7.9% | 18.4% | 1973 | $1,522 | 36.2% | 94.8% | 24.4% |
| ZIP 21901 | 2.56 | 39.9 | 13.3% | 26.8% | 7.1% | 1993 | $1,518 | 34.1% | 92.6% | 5.6% |
| ZIP 21034 | 2.55 | 42.3 | 6.5% | 12.9% | 4.7% | 1974 | $1,069 | 23.1% | 89.4% | 0.4% |
| ZIP 19362 | 2.82 | 40.1 | 3.7% | 13.9% | 4.2% | 1987 | $1,242 | 22.9% | 84.0% | 4.3% |
All figures 2020–24.
Zip codes with similar populations: 08068, NJ · 04280, ME · 62205, IL · 53520, WI · 54002, WI · 54011, WI · 54801, WI · 56267, MN · 60484, IL · 62088, IL
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 21904. 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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