Population 30,900 · Census ACS 2020–24
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Population and households in ZIP 20815
Household size in ZIP 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.37 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.41 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.48 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.46 | 2.77 | 2.68 | 2.65 |
| Change | +0.09 | +0.04 | +0.01 | −0.03 |
The average household in ZIP 20815 has 2.46 people, under the U.S. average of 2.65. Since 2006–10, household size has climbed from 2.37, even as the national average fell. Households are largest in the center and smallest in the southwest.
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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.5 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 45.7 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 47.1 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 48.0 | 39.2 | 40.6 | 40.1 |
| Change | +2.5 | +2.2 | +2.1 | +2.3 |
With a median age of 48.0, ZIP 20815 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 45.5, mirroring the country. Only 11 of the 240 Maryland ZIP codes with 5,000+ people are older.
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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.8% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 5.3% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 4.2% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 6.1% | 10.4% | 11.7% | 11.6% |
| Change | +1.4 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single parents head only 6.1% of households in ZIP 20815, well below the national share of 11.6%. The single-parent share has edged up 1.4 points since 2006–10, even as the national share fell. ZIP 20815 has a lower 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 20815
Renters in ZIP 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.3% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 37.6% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 37.5% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 35.0% | 36.3% | 32.4% | 34.8% |
| Change | −3.3 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Renting in ZIP 20815 is about as common as it is nationally: 35.0% of households rent, against 34.8%. Among homeowners, 34.3% have no mortgage at all, below the national share of 39.8%. Renting is most common in the west and least common in the center. The renter share is down 3.3 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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 4.9% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 5.4% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 7.6% | 5.9% | 7.1% | 9.6% |
| Change | +0.9 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 20815 than nationally: 7.6%, against 9.6% for the U.S. Locally, though, the rate is higher than in the wider Washington area (5.9%). Vacancy has edged up 0.9 points since 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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1956 | 1977 | 1974 | 1974 |
| 2010–14 | 1956 | 1978 | 1975 | 1975 |
| 2015–19 | 1958 | 1979 | 1976 | 1977 |
| 2020–24 | 1961 | 1982 | 1978 | 1980 |
| Change | +5 | +6 | +4 | +6 |
The housing in ZIP 20815 is old by national standards: the median home dates to 1961, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1956 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the center 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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,797 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,858 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $2,655 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $2,925 | $2,236 | $1,869 | $1,571 |
| Change | +$1,128 | +$766 | +$620 | +$606 |
A typical rental in ZIP 20815 costs $2,925 a month with utilities, well above the national median of $1,571. Rent has climbed $1,128 a month since 2006–10, up 63%, roughly in step with the nation. The typical renter here spends 34.7% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the east and lowest in the west.
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 20815
Bachelor's degrees in ZIP 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 83.6% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 83.2% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 86.0% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 83.7% | 53.9% | 43.4% | 35.6% |
| Change | +0.1 pts | +7.3 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in ZIP 20815: 83.7% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. Only four of the 240 Maryland ZIP codes with 5,000+ people have a higher share of college graduates.
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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.7% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 98.3% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 98.5% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 96.9% | 91.2% | 90.9% | 89.3% |
| Change | −0.8 pts | +1.7 pts | +2.9 pts | +4.3 pts |
High school completion is high in ZIP 20815: 96.9% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has edged down 0.8 points, even as the national rate rose. ZIP 20815 has a higher share of high school graduates than the great majority of Maryland ZIP codes.
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 20815
| Period | ZIP 20815 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.2% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 4.4% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 2.7% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 2.4% | 4.8% | 5.0% | 5.4% |
| Change | −1.8 pts | −1.1 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 20815 has been strong: just 2.4% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 1.8 points from 2006–10, as it has nationally. 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 20815 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 20815 | 2.46 | 48.0 | 6.1% | 35.0% | 7.6% | 1961 | $2,925 | 83.7% | 96.9% | 2.4% |
| ZIP 20015 | 2.45 | 48.3 | 4.2% | 25.1% | 7.4% | 1944 | $2,651 | 87.3% | 96.6% | 3.0% |
| ZIP 20889 | 2.24 | 21.9 | 3.2% | 100.0% | 7.1% | 1950 | $3,501 | 33.7% | 100.0% | 0.0% |
| ZIP 20814 | 2.33 | 41.7 | 5.6% | 48.3% | 8.3% | 1978 | $2,623 | 83.9% | 98.0% | 3.2% |
| ZIP 20816 | 2.87 | 44.1 | 5.1% | 16.7% | 5.7% | 1958 | $3,008 | 89.6% | 97.8% | 5.1% |
| ZIP 20016 | 2.26 | 42.3 | 5.2% | 35.7% | 8.5% | 1953 | $2,521 | 83.4% | 98.6% | 4.3% |
| ZIP 20012 | 2.45 | 39.7 | 11.0% | 36.1% | 8.2% | 1952 | $1,874 | 60.1% | 91.0% | 4.0% |
| ZIP 20910 | 2.15 | 37.0 | 7.9% | 64.8% | 6.8% | 1971 | $2,027 | 74.2% | 96.4% | 3.6% |
| ZIP 20008 | 1.81 | 39.9 | 4.0% | 62.8% | 8.8% | 1955 | $2,308 | 90.9% | 98.7% | 4.2% |
| ZIP 20812 | 2.90 | 49.8 | 1.0% | 0.3% | 17.9% | 1957 | $2,963 | 80.5% | 98.8% | 0.4% |
| ZIP 20817 | 2.82 | 46.8 | 4.0% | 18.9% | 7.2% | 1970 | $3,222 | 85.8% | 98.1% | 3.7% |
All figures 2020–24.
Zip codes with similar populations: 78418, TX · 02136, MA · 48309, MI · 06770, CT · 60099, IL · 11050, NY · 20603, MD · 21009, MD · 23606, VA · 43402, OH
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 20815. 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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