Population 11,580 · Census ACS 2020–24
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Population and households in ZIP 21788
Household size in ZIP 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.60 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.65 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.52 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.48 | 2.77 | 2.68 | 2.65 |
| Change | −0.12 | +0.04 | +0.01 | −0.03 |
Households in ZIP 21788 run small, averaging 2.48 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has dropped from 2.60, a much bigger shift than nationally.
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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 42.5 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 41.4 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 45.3 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 44.2 | 39.2 | 40.6 | 40.1 |
| Change | +1.7 | +2.2 | +2.1 | +2.3 |
ZIP 21788 skews older: half of its residents are older than 44.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families. The median age has climbed from 42.5 in 2006–10, 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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.5% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 7.8% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 10.3% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 9.0% | 10.4% | 11.7% | 11.6% |
| Change | −0.5 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single parents head just over one in twelve households in ZIP 21788 (9.0%), below the national share of 11.6%. The single-parent share has barely moved since 2006–10, while 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 21788
Renters in ZIP 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.2% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 20.8% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 20.6% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 19.8% | 36.3% | 32.4% | 34.8% |
| Change | +0.7 pts | +2.3 pts | +1.4 pts | +1.5 pts |
ZIP 21788 is largely a place of homeowners: only 19.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Nearly a third of owners (32.3%) have paid off their mortgages, below the national share of 39.8%. Since 2006–10, the renter share has edged up 0.7 points, as it has nationally.
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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.2% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 9.4% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 7.7% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 4.9% | 5.9% | 7.1% | 9.6% |
| Change | −2.3 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Empty homes are scarce in ZIP 21788: just 4.9% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. The picture is much the same across the Washington area. Since 2006–10, vacancy has fallen 2.3 points, as it has nationally.
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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1976 | 1977 | 1974 | 1974 |
| 2010–14 | 1975 | 1978 | 1975 | 1975 |
| 2015–19 | 1973 | 1979 | 1976 | 1977 |
| 2020–24 | 1974 | 1982 | 1978 | 1980 |
| Change | −2 | +6 | +4 | +6 |
Housing in ZIP 21788 leans a little older: the median home dates to 1974, against 1980 nationally. 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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $983 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,046 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $1,147 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $1,304 | $2,236 | $1,869 | $1,571 |
| Change | +$321 | +$766 | +$620 | +$606 |
A typical rental in ZIP 21788 costs $1,304 a month with utilities, below the national median of $1,571. Rents are up $321 a month from 2006–10, a 33% rise, a slower climb than the nation's. Rent takes 30.0% of the typical renter's income, just under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the east; the highest are in the southwest.
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 21788
Bachelor's degrees in ZIP 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.9% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 24.3% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 25.3% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 28.1% | 53.9% | 43.4% | 35.6% |
| Change | +6.2 pts | +7.3 pts | +7.1 pts | +7.2 pts |
Nearly three in ten adults 25 and older in ZIP 21788 (28.1%) have a bachelor's degree or higher, below the national share of 35.6%. The share with a degree has risen 6.2 points since 2006–10, in line with the national trend. College graduates are most concentrated in the southeast and least in the north.
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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 90.1% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 89.0% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 90.4% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 92.2% | 91.2% | 90.9% | 89.3% |
| Change | +2.1 pts | +1.7 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21788 is a bit above the national rate: 92.2% of adults have a diploma or equivalent, against 89.3%. The Washington area as a whole looks much the same. The share with a diploma has risen 2.1 points since 2006–10, in line with the national trend.
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 21788
| Period | ZIP 21788 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.1% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 8.3% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 4.5% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 2.6% | 4.8% | 5.0% | 5.4% |
| Change | −0.5 pts | −1.1 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 21788 has been strong: just 2.6% of the labor force was out of work and looking, well below the national rate of 5.4%. ZIP 21788 has lower unemployment than at least four in five Maryland ZIP codes. 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 21788 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 21788 | 2.48 | 44.2 | 9.0% | 19.8% | 4.9% | 1974 | $1,304 | 28.1% | 92.2% | 2.6% |
| ZIP 21778 | 2.32 | 49.7 | 3.3% | 12.2% | 9.8% | 1973 | $1,576 | 30.2% | 85.5% | 3.4% |
| ZIP 21780 | 2.67 | 42.9 | 2.4% | 22.4% | 7.6% | 1965 | $1,333 | 30.0% | 90.0% | 1.0% |
| ZIP 21727 | 2.52 | 35.5 | 7.4% | 23.1% | 13.2% | 1974 | $830 | 35.1% | 88.7% | 2.9% |
| ZIP 21798 | 2.94 | 45.9 | 10.4% | 16.9% | 12.1% | 1985 | $1,278 | 42.0% | 93.4% | 4.1% |
| ZIP 21757 | 2.95 | 40.9 | 7.0% | 19.4% | 9.3% | 1969 | $1,533 | 30.4% | 90.1% | 3.0% |
| ZIP 21719 | 2.46 | 39.2 | 6.3% | 12.4% | 19.4% | 1956 | $1,453 | 21.7% | 91.6% | 1.8% |
| ZIP 17214 | 2.03 | 49.4 | 9.0% | 31.4% | 11.9% | 1963 | $876 | 29.4% | 89.0% | 2.0% |
| ZIP 21783 | 2.76 | 43.4 | 11.7% | 19.7% | 9.2% | 1973 | $1,137 | 23.6% | 91.2% | 3.1% |
| ZIP 21773 | 2.89 | 46.9 | 3.9% | 6.9% | 9.2% | 1984 | $1,636 | 47.7% | 96.5% | 3.7% |
| ZIP 17320 | 2.58 | 41.5 | 10.0% | 13.1% | 5.1% | 1983 | $1,152 | 26.7% | 92.6% | 1.8% |
All figures 2020–24.
Zip codes with similar populations: 22968, VA · 48895, MI · 61525, IL · 62896, IL · 39817, GA · 35768, AL · 76084, TX · 32736, FL · 77954, TX · 27944, NC
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 21788. 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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