Population 6,103 · Census ACS 2020–24
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Population and households in ZIP 21727
Household size in ZIP 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.42 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.81 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.38 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.52 | 2.77 | 2.68 | 2.65 |
| Change | +0.10 | +0.04 | +0.01 | −0.03 |
The average household in ZIP 21727 has 2.52 people, a bit under the U.S. average of 2.65. Household size has climbed from 2.42 in 2006–10, even as the national average fell. The biggest households, usually families with children, are concentrated in the north.
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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 32.7 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 31.6 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 34.4 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 35.5 | 39.2 | 40.6 | 40.1 |
| Change | +2.8 | +2.2 | +2.1 | +2.3 |
ZIP 21727 is young: half of its residents are under 35.5, compared with a national median of 40.1. The population tilts toward young adults, many of them living alone or as couples. Since 2006–10, the median age has climbed from 32.7, as it has nationally. Of the 240 Maryland ZIP codes with 5,000+ people, only 23 are younger.
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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.9% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 11.6% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 7.7% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 7.4% | 10.4% | 11.7% | 11.6% |
| Change | −1.5 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 21727: 7.4% of households, against 11.6% nationally. The single-parent share is down 1.5 points from 2006–10, as it has nationally.
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 21727
Renters in ZIP 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 30.5% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 23.8% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 29.3% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 23.1% | 36.3% | 32.4% | 34.8% |
| Change | −7.4 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Only 23.1% of households in ZIP 21727 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 34.4% have no mortgage at all, below the national share of 39.8%. Renting is most common in the center and least common in the southwest. The renter share has fallen 7.4 points since 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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 11.4% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 10.4% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 13.2% | 5.9% | 7.1% | 9.6% |
| Change | +4.8 pts | −2.8 pts | −1.9 pts | −1.8 pts |
More homes sit empty in ZIP 21727 than nationally: 13.2%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Since 2006–10, vacancy has risen 4.8 points, 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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1967 | 1977 | 1974 | 1974 |
| 2010–14 | 1960 | 1978 | 1975 | 1975 |
| 2015–19 | 1962 | 1979 | 1976 | 1977 |
| 2020–24 | 1974 | 1982 | 1978 | 1980 |
| Change | +7 | +6 | +4 | +6 |
Homes in ZIP 21727 run a bit older than the national norm, with a median build year of 1974 against 1980. The median year built has moved up from 1967 in 2006–10, a sign of steady new building. Newer construction is concentrated in the north, while the southwest 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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $670 | $1,470 | $1,249 | $965 |
| 2010–14 | $799 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $882 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $830 | $2,236 | $1,869 | $1,571 |
| Change | +$160 | +$766 | +$620 | +$606 |
The median renter in ZIP 21727 pays $830 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $160 a month since 2006–10, up 24%, a slower climb than the nation's. The typical renter here spends 27.2% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the southeast and lowest in the north.
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 21727
Bachelor's degrees in ZIP 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.6% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 28.1% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 30.9% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 35.1% | 53.9% | 43.4% | 35.6% |
| Change | +15.5 pts | +7.3 pts | +7.1 pts | +7.2 pts |
Just over a third of adults 25 and older in ZIP 21727 (35.1%) hold at least a bachelor's degree, close to the national share of 35.6%. The share is lower than in the Washington area overall (53.9%). Since 2006–10, the share with a degree has risen 15.5 points, 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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 83.2% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 88.1% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 88.1% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 88.7% | 91.2% | 90.9% | 89.3% |
| Change | +5.5 pts | +1.7 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21727 is close to the national rate: 88.7% of adults have a diploma or equivalent, against 89.3%. The rate is lower than in the Washington area overall (91.2%). The share with a diploma has risen 5.5 points since 2006–10, as it has nationally.
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 21727
| Period | ZIP 21727 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.1% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 6.4% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 6.4% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 2.9% | 4.8% | 5.0% | 5.4% |
| Change | −2.2 pts | −1.1 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 21727 has been strong: just 2.9% of the labor force was out of work and looking, well below the national rate of 5.4%. Since 2006–10, unemployment has fallen 2.2 points, 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 21727 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 21727 | 2.52 | 35.5 | 7.4% | 23.1% | 13.2% | 1974 | $830 | 35.1% | 88.7% | 2.9% |
| ZIP 17320 | 2.58 | 41.5 | 10.0% | 13.1% | 5.1% | 1983 | $1,152 | 26.7% | 92.6% | 1.8% |
| ZIP 21778 | 2.32 | 49.7 | 3.3% | 12.2% | 9.8% | 1973 | $1,576 | 30.2% | 85.5% | 3.4% |
| ZIP 21788 | 2.48 | 44.2 | 9.0% | 19.8% | 4.9% | 1974 | $1,304 | 28.1% | 92.2% | 2.6% |
| ZIP 21780 | 2.67 | 42.9 | 2.4% | 22.4% | 7.6% | 1965 | $1,333 | 30.0% | 90.0% | 1.0% |
| ZIP 17214 | 2.03 | 49.4 | 9.0% | 31.4% | 11.9% | 1963 | $876 | 29.4% | 89.0% | 2.0% |
| ZIP 21719 | 2.46 | 39.2 | 6.3% | 12.4% | 19.4% | 1956 | $1,453 | 21.7% | 91.6% | 1.8% |
| ZIP 21757 | 2.95 | 40.9 | 7.0% | 19.4% | 9.3% | 1969 | $1,533 | 30.4% | 90.1% | 3.0% |
| ZIP 21787 | 2.65 | 42.7 | 12.1% | 21.4% | 5.5% | 1984 | $1,151 | 22.0% | 94.4% | 4.2% |
| ZIP 17250 | 2.31 | 43.6 | 2.6% | 16.6% | 3.4% | 1972 | $944 | 18.0% | 91.7% | 3.8% |
| ZIP 21798 | 2.94 | 45.9 | 10.4% | 16.9% | 12.1% | 1985 | $1,278 | 42.0% | 93.4% | 4.1% |
All figures 2020–24.
Zip codes with similar populations: 97523, OR · 12186, NY · 12158, NY · 12077, NY · 11560, NY · 10590, NY · 08533, NJ · 07830, NJ · 07462, NJ · 06057, CT
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 21727. 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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