20770, MD Demographics

Population 26,937 · Census ACS 2020–24

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20770, MD map of median age by neighborhood
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Population and households in ZIP 20770

Household size in ZIP 20770

Household size, people per household
PeriodZIP 20770Washington areaMarylandU.S.
2006–102.382.732.682.68
2010–142.692.822.732.73
2015–192.612.862.742.71
2020–242.552.772.682.65
Change+0.17+0.04+0.01−0.03
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The average household in ZIP 20770 has 2.55 people, a bit under the U.S. average of 2.65. Household size has climbed from 2.38 in 2006–10, even as the national average fell. Households are largest in the west 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 20770

Median age, years
PeriodZIP 20770Washington areaMarylandU.S.
2006–1035.637.038.537.7
2010–1434.637.639.338.6
2015–1935.638.540.239.6
2020–2437.239.240.640.1
Change+1.6+2.2+2.1+2.3
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ZIP 20770 is younger than the country as a whole: its median age is 37.2, against 40.1 nationally. The median age has climbed from 35.6 in 2006–10, in line with the national trend. The youngest areas are in the northwest, the oldest in the center.

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 20770

Single-parent households, % of households
PeriodZIP 20770Washington areaMarylandU.S.
2006–1019.6%11.3%12.5%12.3%
2010–1422.8%11.3%12.6%12.3%
2015–1918.4%10.4%11.7%11.6%
2020–2421.4%10.4%11.7%11.6%
Change+1.8 pts−0.9 pts−0.9 pts−0.6 pts
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Single parents head just over one in five households in ZIP 20770 (21.4%), well above the national share of 11.6%. The single-parent share is up 1.8 points from 2006–10, even as the national share fell. Of the 240 Maryland ZIP codes with 5,000+ people, only six have a higher 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 20770

Renters in ZIP 20770

Renters, % of occupied homes
PeriodZIP 20770Washington areaMarylandU.S.
2006–1050.3%34.0%31.0%33.3%
2010–1456.3%36.6%32.9%35.6%
2015–1955.1%36.8%33.1%36.0%
2020–2454.8%36.3%32.4%34.8%
Change+4.5 pts+2.3 pts+1.4 pts+1.5 pts
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Renters far outnumber owners in ZIP 20770: 54.8% of households rent their homes, against 34.8% nationally. About a quarter of owners (24.8%) have paid off their mortgages, well below the national share of 39.8%. The renter share has risen 4.5 points since 2006–10, a much bigger shift than nationally. Of the 240 Maryland ZIP codes with 5,000+ people, only 20 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 20770

Vacant homes, % of all homes
PeriodZIP 20770Washington areaMarylandU.S.
2006–1010.0%8.7%9.0%11.4%
2010–148.1%7.3%8.9%11.4%
2015–196.8%6.6%8.9%11.1%
2020–245.9%5.9%7.1%9.6%
Change−4.2 pts−2.8 pts−1.9 pts−1.8 pts
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Fewer homes sit empty in ZIP 20770 than nationally: 5.9%, against 9.6% for the U.S. The Washington area as a whole looks much the same. Since 2006–10, vacancy has fallen 4.2 points, in line with the national trend.

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 20770

Age of homes, median year built
PeriodZIP 20770Washington areaMarylandU.S.
2006–101968197719741974
2010–141969197819751975
2015–191973197919761977
2020–241979198219781980
Change+11+6+4+6
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Homes in ZIP 20770 are about the same age as the nation's housing: the median home was built in 1979, versus 1980 nationally. The median year built has moved up from 1968 in 2006–10, a sign of steady new building.

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 20770

Rent, per month
PeriodZIP 20770Washington areaMarylandU.S.
2006–10$1,241$1,470$1,249$965
2010–14$1,434$1,583$1,363$1,040
2015–19$1,574$1,907$1,576$1,213
2020–24$1,855$2,236$1,869$1,571
Change+$614+$766+$620+$606
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The median renter in ZIP 20770 pays $1,855 a month for rent and utilities, above the national median of $1,571. Still, rents here are lower than in the Washington area as a whole ($2,236). Rents are up $614 a month from 2006–10, a 49% rise, a slower climb than the nation's. Rent takes 32.2% of the typical renter's income, just over the 30% mark often used to define affordable rent.

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 20770

Bachelor's degrees in ZIP 20770

Bachelor's degrees, % of adults 25+
PeriodZIP 20770Washington areaMarylandU.S.
2006–1037.8%46.6%36.3%28.4%
2010–1438.0%48.2%37.7%29.6%
2015–1942.3%51.0%40.5%32.1%
2020–2442.2%53.9%43.4%35.6%
Change+4.4 pts+7.3 pts+7.1 pts+7.2 pts
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Just over four in ten adults 25 and older in ZIP 20770 (42.2%) have a bachelor's degree or higher, above the national share of 35.6%. Even so, the share is lower than in the Washington area overall (53.9%). The share with a degree is up 4.4 points from 2006–10, 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 20770

High school graduates, % of adults 25+
PeriodZIP 20770Washington areaMarylandU.S.
2006–1091.5%89.4%88.0%84.9%
2010–1486.5%90.2%89.1%86.1%
2015–1989.3%90.8%90.2%87.7%
2020–2488.3%91.2%90.9%89.3%
Change−3.3 pts+1.7 pts+2.9 pts+4.3 pts
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About as many adults in ZIP 20770 have finished high school as nationally: 88.3%, against 89.3%. The rate is lower than in the Washington area as a whole (91.2%). The share with a diploma is down 3.3 points from 2006–10, even as the national rate rose.

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 20770

Unemployment, % of the labor force
PeriodZIP 20770Washington areaMarylandU.S.
2006–106.6%5.9%6.5%8.1%
2010–147.2%6.9%8.1%9.4%
2015–195.3%4.7%5.1%5.6%
2020–246.5%4.8%5.0%5.4%
Change−0.2 pts−1.1 pts−1.5 pts−2.7 pts
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Unemployment runs a little high in ZIP 20770: 6.5% of the labor force was out of work and looking, against 5.4% nationally. 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 20770 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 207702.5537.221.4%54.8%5.9%1979$1,85542.2%88.3%6.5%
ZIP 207712.9129.836.6%65.6%11.6%1977$1,98631.2%98.7%9.1%
ZIP 207402.7830.98.4%56.5%12.5%1982$1,89952.8%88.1%7.4%
ZIP 207063.3338.616.5%28.5%6.3%1975$1,91433.4%82.0%5.1%
ZIP 207373.5432.720.4%43.2%4.6%1960$1,78921.8%65.7%7.1%
ZIP 207843.3135.415.0%45.5%3.7%1963$1,96322.1%76.4%6.7%
ZIP 207422.5819.92.9%93.6%19.2%2002$1,27661.8%92.5%13.7%
ZIP 207053.1740.615.7%41.3%5.0%1981$2,07338.8%81.5%6.1%
ZIP 207813.4232.518.4%47.7%5.1%1958$1,81936.1%74.5%9.2%
ZIP 207692.9843.410.5%10.9%6.7%1998$1,61851.0%91.8%7.9%
ZIP 207103.2931.017.4%75.5%8.2%1967$1,63818.0%82.7%8.5%

All figures 2020–24.

Zip codes with similar populations: 02478, MA · 98335, WA · 92782, CA · 77345, TX · 75212, TX · 44515, OH · 34747, FL · 32937, FL · 30088, GA · 20715, MD

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 20770. 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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