20901, MD Demographics

Population 37,485 · Census ACS 2020–24

Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.

Median age by neighborhoodHistory and comparison ↓︎
20901, MD map of median age by neighborhood
Click the map to explore
Younger residents Older residents
Colorblind friendly off

More maps of ZIP 20901: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet

Jump to median age ↓︎

Population and households in ZIP 20901

Household size in ZIP 20901

Household size, people per household
PeriodZIP 20901Washington areaMarylandU.S.
2006–102.822.732.682.68
2010–142.982.822.732.73
2015–192.972.862.742.71
2020–242.862.772.682.65
Change+0.05+0.04+0.01−0.03
Show on the map ↑︎

The typical household in ZIP 20901 holds 2.86 people, more than the U.S. average of 2.65. Since 2006–10, household size has crept up from 2.82, even as the national average fell. Households are largest in the east and smallest in the south.

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 20901

Median age, years
PeriodZIP 20901Washington areaMarylandU.S.
2006–1037.837.038.537.7
2010–1437.537.639.338.6
2015–1939.138.540.239.6
2020–2439.939.240.640.1
Change+2.1+2.2+2.1+2.3
Show on the map ↑︎

At 39.9, the median age in ZIP 20901 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 37.8, mirroring the country.

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 20901

Single-parent households, % of households
PeriodZIP 20901Washington areaMarylandU.S.
2006–1010.8%11.3%12.5%12.3%
2010–1410.2%11.3%12.6%12.3%
2015–199.4%10.4%11.7%11.6%
2020–2410.7%10.4%11.7%11.6%
Change−0.1 pts−0.9 pts−0.9 pts−0.6 pts
Show on the map ↑︎

Single parents head just over one in ten households in ZIP 20901 (10.7%), close to the national share of 11.6%. The single-parent share is little changed from 2006–10, while the national share fell.

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 20901

Renters in ZIP 20901

Renters, % of occupied homes
PeriodZIP 20901Washington areaMarylandU.S.
2006–1028.7%34.0%31.0%33.3%
2010–1433.7%36.6%32.9%35.6%
2015–1930.6%36.8%33.1%36.0%
2020–2431.9%36.3%32.4%34.8%
Change+3.2 pts+2.3 pts+1.4 pts+1.5 pts
Show on the map ↑︎

Renting in ZIP 20901 is about as common as it is nationally: 31.9% 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, 23.2% have no mortgage at all, well below the national share of 39.8%. Since 2006–10, the renter share has risen 3.2 points, in line with the national trend.

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 20901

Vacant homes, % of all homes
PeriodZIP 20901Washington areaMarylandU.S.
2006–105.7%8.7%9.0%11.4%
2010–144.5%7.3%8.9%11.4%
2015–193.7%6.6%8.9%11.1%
2020–244.1%5.9%7.1%9.6%
Change−1.6 pts−2.8 pts−1.9 pts−1.8 pts
Show on the map ↑︎

Empty homes are scarce in ZIP 20901: just 4.1% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy has fallen 1.6 points since 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 20901

Age of homes, median year built
PeriodZIP 20901Washington areaMarylandU.S.
2006–101958197719741974
2010–141958197819751975
2015–191958197919761977
2020–241960198219781980
Change+1+6+4+6
Show on the map ↑︎

The housing in ZIP 20901 is old by national standards: the median home dates to 1960, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. Newer construction is concentrated in the northeast, while the west has the oldest housing. ZIP 20901 has older homes than the great majority of Maryland ZIP codes.

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 20901

Rent, per month
PeriodZIP 20901Washington areaMarylandU.S.
2006–10$1,552$1,470$1,249$965
2010–14$1,518$1,583$1,363$1,040
2015–19$1,814$1,907$1,576$1,213
2020–24$2,175$2,236$1,869$1,571
Change+$624+$766+$620+$606
Show on the map ↑︎

Rent in ZIP 20901 runs $2,175 a month at the median, utilities included, well above the U.S. median of $1,571. Rent has climbed $624 a month since 2006–10, up 40%, a slower climb than the nation's. The typical renter here spends 29.1% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. The priciest rents are in the north; the most affordable are in the southeast.

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 20901

Bachelor's degrees in ZIP 20901

Bachelor's degrees, % of adults 25+
PeriodZIP 20901Washington areaMarylandU.S.
2006–1052.6%46.6%36.3%28.4%
2010–1452.9%48.2%37.7%29.6%
2015–1954.6%51.0%40.5%32.1%
2020–2457.4%53.9%43.4%35.6%
Change+4.8 pts+7.3 pts+7.1 pts+7.2 pts
Show on the map ↑︎

ZIP 20901 is highly educated: nearly six in ten adults 25 and older (57.4%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree has risen 4.8 points since 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 20901

High school graduates, % of adults 25+
PeriodZIP 20901Washington areaMarylandU.S.
2006–1088.3%89.4%88.0%84.9%
2010–1486.0%90.2%89.1%86.1%
2015–1989.2%90.8%90.2%87.7%
2020–2488.8%91.2%90.9%89.3%
Change+0.5 pts+1.7 pts+2.9 pts+4.3 pts
Show on the map ↑︎

High school completion in ZIP 20901 is close to the national rate: 88.8% of adults have a diploma or equivalent, against 89.3%. The rate is lower than in the Washington area as a whole (91.2%).

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 20901

Unemployment, % of the labor force
PeriodZIP 20901Washington areaMarylandU.S.
2006–106.0%5.9%6.5%8.1%
2010–147.5%6.9%8.1%9.4%
2015–195.5%4.7%5.1%5.6%
2020–246.6%4.8%5.0%5.4%
Change+0.6 pts−1.1 pts−1.5 pts−2.7 pts
Show on the map ↑︎

Jobs have been a little harder to find in ZIP 20901 than nationally: unemployment was 6.6%, against 5.4%. Unemployment is up 0.6 points from 2006–10, even as the national rate fell. 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 20901 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 209012.8639.910.7%31.9%4.1%1960$2,17557.4%88.8%6.6%
ZIP 209033.5234.722.6%57.1%4.6%1964$2,03229.3%67.2%7.2%
ZIP 209102.1537.07.9%64.8%6.8%1971$2,02774.2%96.4%3.6%
ZIP 209122.8037.714.2%55.7%5.6%1956$1,48848.9%83.4%6.8%
ZIP 207833.8333.826.3%58.0%5.3%1965$1,90419.7%56.3%5.7%
ZIP 209023.1737.114.4%35.5%5.0%1968$2,32145.7%82.8%6.4%
ZIP 200122.4539.711.0%36.1%8.2%1952$1,87460.1%91.0%4.0%
ZIP 209042.9141.515.7%48.4%4.8%1978$2,10348.9%89.3%5.7%
ZIP 208952.7342.85.9%22.7%5.1%1961$2,66473.4%96.0%3.8%
ZIP 207422.5819.92.9%93.6%19.2%2002$1,27661.8%92.5%13.7%
ZIP 208892.2421.93.2%100.0%7.1%1950$3,50133.7%100.0%0.0%

All figures 2020–24.

Zip codes with similar populations: 40391, KY · 18951, PA · 19904, DE · 46219, IN · 45458, OH · 22701, VA · 78413, TX · 60030, IL · 66048, KS · 68104, NE

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 20901. 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.

No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.