Population 31,107 · Census ACS 2020–24
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Population and households in ZIP 20740
Household size in ZIP 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.73 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 3.06 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 3.02 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.78 | 2.77 | 2.68 | 2.65 |
| Change | +0.05 | +0.04 | +0.01 | −0.03 |
The typical household in ZIP 20740 holds 2.78 people, slightly more than the U.S. average of 2.65. Household size has crept up from 2.73 in 2006–10, even as the national average fell. Households are largest in the north and smallest in the center.
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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 30.6 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 30.0 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 30.6 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 30.9 | 39.2 | 40.6 | 40.1 |
| Change | +0.3 | +2.2 | +2.1 | +2.3 |
ZIP 20740 is young: half of its residents are under 30.9, compared with a national median of 40.1. The population tilts toward young families with children. The median age has crept up from 30.6 in 2006–10, a smaller shift than nationally. Only two of the 240 Maryland ZIP codes with 5,000+ people 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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.4% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 7.5% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 6.8% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 8.4% | 10.4% | 11.7% | 11.6% |
| Change | −0.0 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single parents head only 8.4% of households in ZIP 20740, well below the national share of 11.6%. ZIP 20740 has a lower share of single-parent households than most 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 20740
Renters in ZIP 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 42.0% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 46.0% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 50.7% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 56.5% | 36.3% | 32.4% | 34.8% |
| Change | +14.5 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Renters far outnumber owners in ZIP 20740: 56.5% of households rent their homes, against 34.8% nationally. More than a third of owners (36.9%) have paid off their mortgages, about the same as nationally. The renter share has risen 14.5 points since 2006–10, a much bigger shift than nationally. Only 17 of the 240 Maryland ZIP codes with 5,000+ people have a higher share of renters.
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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 9.0% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 9.4% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 12.5% | 5.9% | 7.1% | 9.6% |
| Change | +4.2 pts | −2.8 pts | −1.9 pts | −1.8 pts |
More homes sit empty in ZIP 20740 than nationally: 12.5%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has risen 4.2 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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1965 | 1977 | 1974 | 1974 |
| 2010–14 | 1965 | 1978 | 1975 | 1975 |
| 2015–19 | 1971 | 1979 | 1976 | 1977 |
| 2020–24 | 1982 | 1982 | 1978 | 1980 |
| Change | +17 | +6 | +4 | +6 |
The typical home in ZIP 20740 was built around 1982, about the same vintage as the country's housing overall (1980). The median year built has moved up from 1965 in 2006–10, a sign of steady new building. The newest homes are mostly in the west, the oldest in the southeast.
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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,352 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,504 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $1,724 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $1,899 | $2,236 | $1,869 | $1,571 |
| Change | +$547 | +$766 | +$620 | +$606 |
Rent in ZIP 20740 runs $1,899 a month at the median, utilities included, well above the U.S. median of $1,571. Still, rents here are lower than in the wider Washington area ($2,236). Rents are up $547 a month from 2006–10, a 40% rise, a slower climb than the nation's. Rent takes 40.3% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 20740
Bachelor's degrees in ZIP 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.0% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 48.0% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 53.7% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 52.8% | 53.9% | 43.4% | 35.6% |
| Change | +7.8 pts | +7.3 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in ZIP 20740: 52.8% 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. The share with a degree is up 7.8 points from 2006–10, in line with the national trend.
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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 86.1% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 85.4% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 88.1% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 88.1% | 91.2% | 90.9% | 89.3% |
| Change | +2.1 pts | +1.7 pts | +2.9 pts | +4.3 pts |
About as many adults in ZIP 20740 have finished high school as nationally: 88.1%, against 89.3%. The rate is lower than in the wider Washington area (91.2%). 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 20740
| Period | ZIP 20740 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.8% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 9.2% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 5.0% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 7.4% | 4.8% | 5.0% | 5.4% |
| Change | −0.4 pts | −1.1 pts | −1.5 pts | −2.7 pts |
Jobs have been harder to find in ZIP 20740 than nationally: unemployment was 7.4%, against 5.4%. ZIP 20740 has higher 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 20740 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 20740 | 2.78 | 30.9 | 8.4% | 56.5% | 12.5% | 1982 | $1,899 | 52.8% | 88.1% | 7.4% |
| ZIP 20742 | 2.58 | 19.9 | 2.9% | 93.6% | 19.2% | 2002 | $1,276 | 61.8% | 92.5% | 13.7% |
| ZIP 20770 | 2.55 | 37.2 | 21.4% | 54.8% | 5.9% | 1979 | $1,855 | 42.2% | 88.3% | 6.5% |
| ZIP 20783 | 3.83 | 33.8 | 26.3% | 58.0% | 5.3% | 1965 | $1,904 | 19.7% | 56.3% | 5.7% |
| ZIP 20737 | 3.54 | 32.7 | 20.4% | 43.2% | 4.6% | 1960 | $1,789 | 21.8% | 65.7% | 7.1% |
| ZIP 20903 | 3.52 | 34.7 | 22.6% | 57.1% | 4.6% | 1964 | $2,032 | 29.3% | 67.2% | 7.2% |
| ZIP 20782 | 2.67 | 37.8 | 13.4% | 58.1% | 6.2% | 1973 | $1,872 | 39.1% | 78.6% | 4.8% |
| ZIP 20781 | 3.42 | 32.5 | 18.4% | 47.7% | 5.1% | 1958 | $1,819 | 36.1% | 74.5% | 9.2% |
| ZIP 20705 | 3.17 | 40.6 | 15.7% | 41.3% | 5.0% | 1981 | $2,073 | 38.8% | 81.5% | 6.1% |
| ZIP 20784 | 3.31 | 35.4 | 15.0% | 45.5% | 3.7% | 1963 | $1,963 | 22.1% | 76.4% | 6.7% |
| ZIP 20710 | 3.29 | 31.0 | 17.4% | 75.5% | 8.2% | 1967 | $1,638 | 18.0% | 82.7% | 8.5% |
All figures 2020–24.
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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 20740. 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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