Population 43,442 · Census ACS 2020–24
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Population and households in ZIP 21701
Household size in ZIP 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.49 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.42 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.40 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.35 | 2.77 | 2.68 | 2.65 |
| Change | −0.14 | +0.04 | +0.01 | −0.03 |
Households in ZIP 21701 are small: just 2.35 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.49 in 2006–10, 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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.9 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 40.2 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 40.5 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 40.5 | 39.2 | 40.6 | 40.1 |
| Change | +1.6 | +2.2 | +2.1 | +2.3 |
At 40.5, the median age in ZIP 21701 is close to the national median of 40.1, so its age mix looks much like the country's. Since 2006–10, the median age has climbed from 38.9, in line with the national trend. The youngest areas are in the west, the oldest in the northeast.
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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 11.1% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 9.0% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 8.6% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 10.3% | 10.4% | 11.7% | 11.6% |
| Change | −0.8 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single-parent households are a bit less common in ZIP 21701 than nationally: 10.3%, against 11.6%. The picture is much the same across the Washington area. Since 2006–10, the single-parent share has edged down 0.8 points, in line with the national trend.
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 21701
Renters in ZIP 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 34.5% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 37.7% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 34.0% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 33.2% | 36.3% | 32.4% | 34.8% |
| Change | −1.3 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Renting in ZIP 21701 is about as common as it is nationally: 33.2% of households rent, against 34.8%. Renters make up a smaller share here than in the Washington area as a whole (36.3%). Among homeowners, 23.3% have no mortgage at all, well below the national share of 39.8%. The renter share has edged down 1.3 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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.7% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 6.4% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 8.3% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 5.0% | 5.9% | 7.1% | 9.6% |
| Change | −3.7 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Only 5.0% of homes in ZIP 21701 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. That is in line with the rest of the Washington area. Vacancy is down 3.7 points from 2006–10, 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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1974 | 1977 | 1974 | 1974 |
| 2010–14 | 1976 | 1978 | 1975 | 1975 |
| 2015–19 | 1978 | 1979 | 1976 | 1977 |
| 2020–24 | 1980 | 1982 | 1978 | 1980 |
| Change | +6 | +6 | +4 | +6 |
The typical home in ZIP 21701 was built around 1980, the same vintage as the country's housing overall. The median year built has moved up from 1974 in 2006–10, a sign of steady new building. The newest homes are mostly in the north, the oldest in the southwest.
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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,195 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,360 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $1,487 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $1,777 | $2,236 | $1,869 | $1,571 |
| Change | +$582 | +$766 | +$620 | +$606 |
Rent in ZIP 21701 runs $1,777 a month at the median, utilities included, above the U.S. median of $1,571. Locally, though, rents here are lower than in the wider Washington area ($2,236). Rent has climbed $582 a month since 2006–10, up 49%, a slower climb than the nation's. The typical renter here spends 29.2% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 21701
Bachelor's degrees in ZIP 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.1% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 42.9% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 46.9% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 51.0% | 53.9% | 43.4% | 35.6% |
| Change | +12.9 pts | +7.3 pts | +7.1 pts | +7.2 pts |
ZIP 21701 is highly educated: about half of adults 25 and older (51.0%) hold at least a bachelor's degree, far above the national share of 35.6%. The Washington area as a whole looks much the same. Since 2006–10, the share with a degree has risen 12.9 points, as it has nationally.
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 21701
| Period | ZIP 21701 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.8% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 92.8% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 94.2% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 93.7% | 91.2% | 90.9% | 89.3% |
| Change | +3.9 pts | +1.7 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21701 is above the national rate: 93.7% of adults have a diploma or equivalent, against 89.3%. The share with a diploma is up 3.9 points from 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 21701
| Period | ZIP 21701 | 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 | 3.8% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 3.6% | 4.8% | 5.0% | 5.4% |
| Change | −1.5 pts | −1.1 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21701 runs below the national rate: 3.6% of the labor force was out of work and looking, against 5.4% nationally. Since 2006–10, unemployment has fallen 1.5 points, mirroring the country. 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 21701 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 21701 | 2.35 | 40.5 | 10.3% | 33.2% | 5.0% | 1980 | $1,777 | 51.0% | 93.7% | 3.6% |
| ZIP 21702 | 2.66 | 39.3 | 13.0% | 34.7% | 7.1% | 1990 | $2,044 | 40.6% | 88.2% | 3.6% |
| ZIP 21793 | 2.73 | 42.2 | 7.2% | 12.5% | 4.3% | 1979 | $1,599 | 39.7% | 94.8% | 2.2% |
| ZIP 21703 | 2.78 | 35.6 | 17.7% | 33.5% | 5.0% | 1999 | $2,150 | 43.6% | 92.5% | 2.7% |
| ZIP 21774 | 3.04 | 35.9 | 6.0% | 6.8% | 3.2% | 2002 | $2,182 | 61.3% | 97.0% | 2.3% |
| ZIP 21704 | 3.16 | 39.5 | 11.0% | 18.1% | 4.5% | 2007 | $2,356 | 59.2% | 95.6% | 3.0% |
| ZIP 21714 | 2.16 | 52.3 | 4.2% | 35.9% | 10.4% | 1968 | $1,774 | 42.0% | 100.0% | 0.0% |
| ZIP 21717 | 2.62 | 49.5 | 2.4% | 8.9% | 6.1% | 1982 | $2,298 | 33.6% | 96.8% | 0.0% |
| ZIP 21754 | 3.13 | 37.8 | 5.0% | 7.0% | 4.0% | 2006 | $2,111 | 62.7% | 98.2% | 1.9% |
| ZIP 21762 | 3.15 | 39.6 | 23.7% | 2.5% | 5.6% | 1975 | $2,380 | 47.2% | 98.6% | 1.7% |
| 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: 49426, MI · 92543, CA · 90036, CA · 70003, LA · 72450, AR · 77049, TX · 33071, FL · 84037, UT · 26505, WV · 23059, VA
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 21701. 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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