Population 19,311 · Census ACS 2020–24
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Population and households in ZIP 21901
Household size in ZIP 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.79 | 2.64 | 2.68 | 2.68 |
| 2010–14 | 2.86 | 2.68 | 2.73 | 2.73 |
| 2015–19 | 2.82 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.56 | 2.57 | 2.68 | 2.65 |
| Change | −0.23 | −0.07 | +0.01 | −0.03 |
The average household in ZIP 21901 has 2.56 people, a bit under the U.S. average of 2.65. Since 2006–10, household size has dropped from 2.79, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the northwest.
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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.5 | 38.5 | 38.5 | 37.7 |
| 2010–14 | 37.4 | 39.3 | 39.3 | 38.6 |
| 2015–19 | 40.6 | 40.3 | 40.2 | 39.6 |
| 2020–24 | 39.9 | 40.4 | 40.6 | 40.1 |
| Change | +1.4 | +1.9 | +2.1 | +2.3 |
Half of the people in ZIP 21901 are younger than 39.9 and half are older, close to the national median of 40.1. Since 2006–10, the median age has climbed from 38.5, mirroring the country. The youngest areas are in the east, the oldest in the south.
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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 13.0% | 12.2% | 12.5% | 12.3% |
| 2010–14 | 11.4% | 11.8% | 12.6% | 12.3% |
| 2015–19 | 10.8% | 11.7% | 11.7% | 11.6% |
| 2020–24 | 13.3% | 12.1% | 11.7% | 11.6% |
| Change | +0.3 pts | −0.1 pts | −0.9 pts | −0.6 pts |
Single-parent households are a bit more common in ZIP 21901 than nationally: 13.3%, against 11.6%. ZIP 21901 has a higher share of single-parent households than most Maryland ZIP codes.
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 21901
Renters in ZIP 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 23.5% | 30.2% | 31.0% | 33.3% |
| 2010–14 | 25.0% | 32.1% | 32.9% | 35.6% |
| 2015–19 | 28.3% | 32.7% | 33.1% | 36.0% |
| 2020–24 | 26.8% | 33.2% | 32.4% | 34.8% |
| Change | +3.3 pts | +3.0 pts | +1.4 pts | +1.5 pts |
More than a quarter of households in ZIP 21901 rent their homes (26.8%), below the national share of 34.8%; the rest own. Among owners, 25.0% have paid off their mortgages, well below the national share of 39.8%. Renting is most common in the east and least common in the south. The renter share is up 3.3 points from 2006–10, in line with the national trend.
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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.3% | 9.1% | 9.0% | 11.4% |
| 2010–14 | 15.9% | 9.2% | 8.9% | 11.4% |
| 2015–19 | 13.6% | 9.0% | 8.9% | 11.1% |
| 2020–24 | 7.1% | 6.9% | 7.1% | 9.6% |
| Change | −4.2 pts | −2.2 pts | −1.9 pts | −1.8 pts |
Vacancy is on the low side in ZIP 21901: 7.1% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. The picture is much the same across the Philadelphia area. Vacancy is down 4.2 points from 2006–10, in line with the national trend.
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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1981 | 1964 | 1974 | 1974 |
| 2010–14 | 1985 | 1965 | 1975 | 1975 |
| 2015–19 | 1988 | 1965 | 1976 | 1977 |
| 2020–24 | 1993 | 1968 | 1978 | 1980 |
| Change | +12 | +4 | +4 | +6 |
ZIP 21901 has newer housing than the country as a whole: the median home was built in 1993, versus 1980 nationally. The median year built has moved up from 1981 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the east 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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,041 | $1,049 | $1,249 | $965 |
| 2010–14 | $1,087 | $1,147 | $1,363 | $1,040 |
| 2015–19 | $1,188 | $1,281 | $1,576 | $1,213 |
| 2020–24 | $1,518 | $1,631 | $1,869 | $1,571 |
| Change | +$477 | +$582 | +$620 | +$606 |
Rent in ZIP 21901 runs $1,518 a month at the median, utilities included, close to the U.S. median of $1,571. Rents here are lower than in the Philadelphia area overall ($1,631). Rents are up $477 a month from 2006–10, a 46% rise, a slower climb than the nation's. The typical renter here spends 25.8% 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 21901
Bachelor's degrees in ZIP 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 22.1% | 32.7% | 36.3% | 28.4% |
| 2010–14 | 25.1% | 34.4% | 37.7% | 29.6% |
| 2015–19 | 23.4% | 37.9% | 40.5% | 32.1% |
| 2020–24 | 34.1% | 42.3% | 43.4% | 35.6% |
| Change | +12.1 pts | +9.6 pts | +7.1 pts | +7.2 pts |
College degrees are about as common in ZIP 21901 as nationally: 34.1% of adults 25 and older have a bachelor's or higher, against 35.6%. The share is lower than in the Philadelphia area overall (42.3%). The share with a degree is up 12.1 points from 2006–10, in line with the national trend.
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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 88.4% | 87.5% | 88.0% | 84.9% |
| 2010–14 | 88.0% | 88.9% | 89.1% | 86.1% |
| 2015–19 | 88.9% | 90.5% | 90.2% | 87.7% |
| 2020–24 | 92.6% | 91.9% | 90.9% | 89.3% |
| Change | +4.2 pts | +4.4 pts | +2.9 pts | +4.3 pts |
About nine in ten adults in ZIP 21901 have finished high school (92.6%), above the national rate of 89.3%. The picture is much the same across the Philadelphia area. Since 2006–10, the share with a diploma has risen 4.2 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 21901
| Period | ZIP 21901 | Philadelphia area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.5% | 8.4% | 6.5% | 8.1% |
| 2010–14 | 11.1% | 10.2% | 8.1% | 9.4% |
| 2015–19 | 5.6% | 6.3% | 5.1% | 5.6% |
| 2020–24 | 5.6% | 6.1% | 5.0% | 5.4% |
| Change | −3.9 pts | −2.3 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21901 is close to the national rate: 5.6% of the labor force, against 5.4%. Unemployment has fallen 3.9 points since 2006–10, in line with the national trend. 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 21901 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 21901 | 2.56 | 39.9 | 13.3% | 26.8% | 7.1% | 1993 | $1,518 | 34.1% | 92.6% | 5.6% |
| ZIP 21914 | 2.59 | 35.5 | 8.7% | 7.9% | 18.4% | 1973 | $1,522 | 36.2% | 94.8% | 24.4% |
| ZIP 21903 | 2.37 | 45.1 | 7.3% | 26.9% | 3.5% | 1980 | $1,060 | 19.8% | 92.3% | 9.1% |
| ZIP 21921 | 2.62 | 41.8 | 12.1% | 30.4% | 8.1% | 1985 | $1,483 | 28.3% | 91.8% | 5.2% |
| ZIP 21904 | 2.62 | 42.3 | 10.1% | 10.8% | 10.4% | 1986 | $1,432 | 23.3% | 92.6% | 7.4% |
| ZIP 21902 | 1.81 | 57.9 | 6.9% | 53.9% | 8.5% | 1986 | $799 | 18.9% | 88.4% | 8.3% |
| ZIP 21920 | 2.97 | 39.5 | 19.8% | 11.1% | 6.0% | 1980 | $1,353 | 32.1% | 84.3% | 1.4% |
| 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 21915 | 2.16 | 54.1 | 8.6% | 20.0% | 19.7% | 1982 | $958 | 18.6% | 94.3% | 6.2% |
| ZIP 21078 | 2.49 | 46.2 | 9.6% | 24.0% | 5.8% | 1985 | $1,649 | 41.5% | 93.9% | 3.9% |
All figures 2020–24.
Zip codes with similar populations: 77028, TX · 37015, TN · 37725, TN · 38478, TN · 39560, MS · 43611, OH · 60465, IL · 68847, NE · 71055, LA · 02459, MA
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 21901. 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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