Population 9,328 · Census ACS 2020–24
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Population and households in ZIP 20742
Household size in ZIP 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1.95 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 3.61 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 3.77 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.58 | 2.77 | 2.68 | 2.65 |
| Change | +0.63 | +0.04 | +0.01 | −0.03 |
Households in ZIP 20742 average 2.58 people, about the same as the country as a whole (2.65). The typical household here is smaller than in the Washington area overall, where it has 2.77 people. Household size has climbed from 1.95 in 2006–10, even as the national average fell.
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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.6 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 19.7 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 19.7 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 19.9 | 39.2 | 40.6 | 40.1 |
| Change | +0.3 | +2.2 | +2.1 | +2.3 |
ZIP 20742 is young: half of its residents are under 19.9, compared with a national median of 40.1. The population tilts toward young adults in their twenties. ZIP 20742 has the youngest population of any Maryland ZIP code with 5,000+ people.
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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.1% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 4.8% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 14.3% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 2.9% | 10.4% | 11.7% | 11.6% |
| Change | −1.2 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 20742: 2.9% of households, against 11.6% nationally. The single-parent share has edged down 1.2 points since 2006–10, in line with the national trend. Only two of the 240 Maryland ZIP codes with 5,000+ people have a lower share of single-parent households.
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 20742
Renters in ZIP 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 84.1% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 85.0% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 83.7% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 93.6% | 36.3% | 32.4% | 34.8% |
| Change | +9.4 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Most households in ZIP 20742 rent: 93.6% of occupied homes are rented, far above the national share of 34.8%. Expect more apartments, and more turnover, than in owner-heavy areas. The renter share is up 9.4 points from 2006–10, a much bigger shift than nationally. ZIP 20742 has the highest share of renters of any Maryland ZIP code with 5,000+ people.
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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 17.1% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 19.7% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 57.3% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 19.2% | 5.9% | 7.1% | 9.6% |
| Change | +2.2 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Vacant homes make up 19.2% of the housing in ZIP 20742, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand. Vacancy has risen 2.2 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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1963 | 1977 | 1974 | 1974 |
| 2010–14 | 1970 | 1978 | 1975 | 1975 |
| 2015–19 | 1982 | 1979 | 1976 | 1977 |
| 2020–24 | 2002 | 1982 | 1978 | 1980 |
| Change | +39 | +6 | +4 | +6 |
Much of the housing in ZIP 20742 is relatively new: half of its homes were built after 2002, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1963 in 2006–10, a sign of steady new building. Only eight of the 240 Maryland ZIP codes with 5,000+ people have newer homes.
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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,163 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,335 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $1,651 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $1,276 | $2,236 | $1,869 | $1,571 |
| Change | +$113 | +$766 | +$620 | +$606 |
Rent in ZIP 20742 runs $1,276 a month at the median, utilities included, below the U.S. median of $1,571. Rent has climbed $113 a month since 2006–10, up 10%, a slower climb than the nation's. Rent takes 51.0% 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 20742
Bachelor's degrees in ZIP 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 73.5% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 58.3% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 78.4% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 61.8% | 53.9% | 43.4% | 35.6% |
| Change | −11.6 pts | +7.3 pts | +7.1 pts | +7.2 pts |
ZIP 20742 is highly educated: just over six in ten adults 25 and older (61.8%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree has fallen 11.6 points since 2006–10, even as the national share rose. ZIP 20742 has a higher share of college graduates than the great majority of Maryland ZIP codes.
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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 76.6% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 78.8% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 95.4% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 92.5% | 91.2% | 90.9% | 89.3% |
| Change | +15.9 pts | +1.7 pts | +2.9 pts | +4.3 pts |
About nine in ten adults in ZIP 20742 have finished high school (92.5%), a bit above the national rate of 89.3%. The picture is much the same across the Washington area. The share with a diploma has risen 15.9 points since 2006–10, a much bigger shift than 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 20742
| Period | ZIP 20742 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 13.5% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 14.5% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 0.8% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 13.7% | 4.8% | 5.0% | 5.4% |
| Change | +0.1 pts | −1.1 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 20742 runs well above the national rate: 13.7% of the labor force was out of work and looking, against 5.4%. Only one other Maryland ZIP code with 5,000+ people has higher unemployment. 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 20742 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 20742 | 2.58 | 19.9 | 2.9% | 93.6% | 19.2% | 2002 | $1,276 | 61.8% | 92.5% | 13.7% |
| ZIP 20740 | 2.78 | 30.9 | 8.4% | 56.5% | 12.5% | 1982 | $1,899 | 52.8% | 88.1% | 7.4% |
| ZIP 20783 | 3.83 | 33.8 | 26.3% | 58.0% | 5.3% | 1965 | $1,904 | 19.7% | 56.3% | 5.7% |
| ZIP 20782 | 2.67 | 37.8 | 13.4% | 58.1% | 6.2% | 1973 | $1,872 | 39.1% | 78.6% | 4.8% |
| ZIP 20903 | 3.52 | 34.7 | 22.6% | 57.1% | 4.6% | 1964 | $2,032 | 29.3% | 67.2% | 7.2% |
| ZIP 20737 | 3.54 | 32.7 | 20.4% | 43.2% | 4.6% | 1960 | $1,789 | 21.8% | 65.7% | 7.1% |
| ZIP 20781 | 3.42 | 32.5 | 18.4% | 47.7% | 5.1% | 1958 | $1,819 | 36.1% | 74.5% | 9.2% |
| ZIP 20912 | 2.80 | 37.7 | 14.2% | 55.7% | 5.6% | 1956 | $1,488 | 48.9% | 83.4% | 6.8% |
| ZIP 20770 | 2.55 | 37.2 | 21.4% | 54.8% | 5.9% | 1979 | $1,855 | 42.2% | 88.3% | 6.5% |
| ZIP 20712 | 2.31 | 38.6 | 9.6% | 77.7% | 5.2% | 1960 | $1,601 | 36.6% | 82.3% | 6.0% |
| ZIP 20722 | 2.86 | 40.0 | 13.7% | 35.1% | 5.8% | 1949 | $1,941 | 25.8% | 69.6% | 5.1% |
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 20742. 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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