Population 39,786 · Census ACS 2020–24
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Population and households in ZIP 20748
Household size in ZIP 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.47 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.60 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.65 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.53 | 2.77 | 2.68 | 2.65 |
| Change | +0.06 | +0.04 | +0.01 | −0.03 |
The average household in ZIP 20748 has 2.53 people, a bit under the U.S. average of 2.65. Since 2006–10, household size has crept up from 2.47, even as the national average fell. The biggest households, usually families with children, are concentrated in the southeast.
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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.4 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 39.1 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 41.2 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 42.1 | 39.2 | 40.6 | 40.1 |
| Change | +3.7 | +2.2 | +2.1 | +2.3 |
ZIP 20748 skews a little older than the country: its median age is 42.1, against 40.1 nationally. Since 2006–10, the median age has climbed from 38.4, as it has nationally.
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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.7% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 19.1% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 16.6% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 15.9% | 10.4% | 11.7% | 11.6% |
| Change | −3.9 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single-parent households are common in ZIP 20748: 15.9% of all households, against 11.6% nationally. The single-parent share has fallen 3.9 points since 2006–10, a much bigger shift than nationally. ZIP 20748 has a higher share of single-parent households than at least four in five 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 20748
Renters in ZIP 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.6% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 44.4% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 47.5% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 43.8% | 36.3% | 32.4% | 34.8% |
| Change | +3.2 pts | +2.3 pts | +1.4 pts | +1.5 pts |
More than four in ten households in ZIP 20748 rent their homes (43.8%), above the national share of 34.8%. Among homeowners, 26.3% have no mortgage at all, well below the national share of 39.8%. The renter share is up 3.2 points from 2006–10, mirroring the country.
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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.4% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 11.3% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 9.7% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 6.2% | 5.9% | 7.1% | 9.6% |
| Change | −1.2 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 20748 than nationally: 6.2%, against 9.6% for the U.S. The picture is much the same across the Washington area. Vacancy is down 1.2 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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1966 | 1977 | 1974 | 1974 |
| 2010–14 | 1967 | 1978 | 1975 | 1975 |
| 2015–19 | 1967 | 1979 | 1976 | 1977 |
| 2020–24 | 1967 | 1982 | 1978 | 1980 |
| Change | +1 | +6 | +4 | +6 |
ZIP 20748 is a place of older homes: half were built before 1967, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the center, while the north 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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,324 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,397 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $1,629 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $1,808 | $2,236 | $1,869 | $1,571 |
| Change | +$484 | +$766 | +$620 | +$606 |
A typical rental in ZIP 20748 costs $1,808 a month with utilities, above the national median of $1,571. Still, rents here are lower than in the Washington area as a whole ($2,236). Rents are up $484 a month from 2006–10, a 37% rise, a slower climb than the nation's. The typical renter here spends 32.0% of household income on rent, just over 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 20748
Bachelor's degrees in ZIP 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 20.6% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 20.6% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 20.6% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 29.7% | 53.9% | 43.4% | 35.6% |
| Change | +9.1 pts | +7.3 pts | +7.1 pts | +7.2 pts |
College degrees are a little less common in ZIP 20748 than nationally: 29.7% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree is up 9.1 points from 2006–10, mirroring the country.
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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.6% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 90.5% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 91.0% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 91.1% | 91.2% | 90.9% | 89.3% |
| Change | +1.5 pts | +1.7 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 20748 is a bit above the national rate: 91.1% of adults have a diploma or equivalent, against 89.3%. That is in line with the rest of the Washington area. Since 2006–10, the share with a diploma has risen 1.5 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 20748
| Period | ZIP 20748 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.2% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 12.2% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 8.4% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 8.4% | 4.8% | 5.0% | 5.4% |
| Change | −2.8 pts | −1.1 pts | −1.5 pts | −2.7 pts |
Finding work has been harder in ZIP 20748: 8.4% of the labor force was out of work and looking, well above the national rate of 5.4%. Only 14 of the 240 Maryland ZIP codes with 5,000+ people have higher unemployment. Unemployment is down 2.8 points from 2006–10, as it has nationally.
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 20748 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 20748 | 2.53 | 42.1 | 15.9% | 43.8% | 6.2% | 1967 | $1,808 | 29.7% | 91.1% | 8.4% |
| ZIP 20746 | 2.06 | 44.7 | 15.3% | 63.6% | 7.6% | 1981 | $1,777 | 28.4% | 92.5% | 5.7% |
| ZIP 20745 | 2.53 | 39.9 | 14.9% | 53.6% | 8.7% | 1975 | $1,762 | 26.9% | 83.2% | 7.9% |
| ZIP 20032 | 2.31 | 35.2 | 24.7% | 77.3% | 10.5% | 1968 | $1,515 | 22.0% | 85.0% | 16.9% |
| ZIP 20020 | 2.34 | 34.4 | 30.8% | 70.3% | 12.8% | 1967 | $1,356 | 27.0% | 86.4% | 12.6% |
| ZIP 20762 | 3.19 | 24.6 | 7.7% | 98.9% | 13.5% | 1990 | $2,731 | 35.5% | 94.6% | 3.6% |
| ZIP 20747 | 2.42 | 40.0 | 16.1% | 49.5% | 9.3% | 1971 | $1,859 | 25.0% | 90.3% | 6.3% |
| ZIP 20373 | 3.49 | 21.7 | 1.5% | 100.0% | 3.8% | 1998 | $3,092 | 35.0% | 100.0% | 0.0% |
| ZIP 20744 | 2.74 | 45.8 | 10.3% | 18.7% | 5.8% | 1979 | $2,137 | 38.5% | 91.5% | 6.7% |
| ZIP 20743 | 2.71 | 38.6 | 17.6% | 34.2% | 5.8% | 1971 | $1,667 | 24.7% | 84.9% | 10.8% |
| ZIP 20019 | 2.44 | 35.0 | 24.9% | 57.7% | 10.8% | 1963 | $1,373 | 28.5% | 87.2% | 13.6% |
All figures 2020–24.
Zip codes with similar populations: 94124, CA · 10040, NY · 94551, CA · 08094, NJ · 94578, CA · 94606, CA · 95132, CA · 48911, MI · 46254, IN · 48227, MI
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 20748. 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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