Population 1,644 · Census ACS 2020–24
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Population and households in ZIP 20818
Household size in ZIP 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.29 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.70 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.48 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.50 | 2.77 | 2.68 | 2.65 |
| Change | +0.20 | +0.04 | +0.01 | −0.03 |
Households in ZIP 20818 run a little small, averaging 2.50 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has climbed from 2.29, but in a place this small, survey estimates can swing a lot from one release to the next.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 49.3 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 47.5 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 48.6 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 53.3 | 39.2 | 40.6 | 40.1 |
| Change | +4.0 | +2.2 | +2.1 | +2.3 |
ZIP 20818 skews older: half of its residents are older than 53.3, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 7.7% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 6.6% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 0.5% | 10.4% | 11.7% | 11.6% |
| Change | −7.8 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 20818: 0.5% of households, against 11.6% nationally.
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 20818
Renters in ZIP 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.9% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 2.8% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 7.3% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 4.9% | 36.3% | 32.4% | 34.8% |
| Change | +2.0 pts | +2.3 pts | +1.4 pts | +1.5 pts |
ZIP 20818 is overwhelmingly a place of homeowners: only 4.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About three in ten owners (30.7%) have paid off their mortgages, below the national share of 39.8%.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.0% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 8.2% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 1.3% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 8.7% | 5.9% | 7.1% | 9.6% |
| Change | +3.7 pts | −2.8 pts | −1.9 pts | −1.8 pts |
About as many homes sit empty in ZIP 20818 as nationally: 8.7%, against 9.6%. The rate is higher than in the wider Washington area (5.9%).
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1976 | 1977 | 1974 | 1974 |
| 2010–14 | 1967 | 1978 | 1975 | 1975 |
| 2015–19 | 1971 | 1979 | 1976 | 1977 |
| 2020–24 | 1977 | 1982 | 1978 | 1980 |
| Change | +1 | +6 | +4 | +6 |
The typical home in ZIP 20818 was built around 1977, about the same vintage as the country's housing overall (1980). Homes here are older than in the Washington area as a whole, where the median home dates to 1982.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,848 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,999 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $2,327 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $3,494 | $2,236 | $1,869 | $1,571 |
| Change | +$1,646 | +$766 | +$620 | +$606 |
The median renter in ZIP 20818 pays $3,494 a month for rent and utilities, well above the national median of $1,571. Rent takes 22.6% of the typical renter's income, comfortably under 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 20818
Bachelor's degrees in ZIP 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 77.9% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 67.9% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 91.1% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 87.0% | 53.9% | 43.4% | 35.6% |
| Change | +9.1 pts | +7.3 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in ZIP 20818: 87.0% 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.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 96.8% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 95.5% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 100.0% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 99.2% | 91.2% | 90.9% | 89.3% |
| Change | +2.4 pts | +1.7 pts | +2.9 pts | +4.3 pts |
Finishing high school is nearly universal in ZIP 20818: 99.2% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.
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 20818
| Period | ZIP 20818 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1.2% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 1.4% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 4.7% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 0.0% | 4.8% | 5.0% | 5.4% |
| Change | −1.2 pts | −1.1 pts | −1.5 pts | −2.7 pts |
The survey found almost no one in ZIP 20818 out of work and looking, against 5.4% of the labor force nationally. 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 20818 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 20818 | 2.50 | 53.3 | 0.5% | 4.9% | 8.7% | 1977 | $3,494 | 87.0% | 99.2% | 0.0% |
| ZIP 20812 | 2.90 | 49.8 | 1.0% | 0.3% | 17.9% | 1957 | $2,963 | 80.5% | 98.8% | 0.4% |
| ZIP 20817 | 2.82 | 46.8 | 4.0% | 18.9% | 7.2% | 1970 | $3,222 | 85.8% | 98.1% | 3.7% |
| ZIP 20816 | 2.87 | 44.1 | 5.1% | 16.7% | 5.7% | 1958 | $3,008 | 89.6% | 97.8% | 5.1% |
| ZIP 22101 | 2.86 | 47.1 | 4.2% | 16.2% | 5.3% | 1975 | $3,098 | 85.8% | 97.1% | 2.3% |
| ZIP 20814 | 2.33 | 41.7 | 5.6% | 48.3% | 8.3% | 1978 | $2,623 | 83.9% | 98.0% | 3.2% |
| ZIP 20815 | 2.46 | 48.0 | 6.1% | 35.0% | 7.6% | 1961 | $2,925 | 83.7% | 96.9% | 2.4% |
| ZIP 20889 | 2.24 | 21.9 | 3.2% | 100.0% | 7.1% | 1950 | $3,501 | 33.7% | 100.0% | 0.0% |
| ZIP 22102 | 2.29 | 39.0 | 6.7% | 52.9% | 7.2% | 1993 | $2,583 | 84.0% | 98.4% | 4.3% |
| ZIP 20016 | 2.26 | 42.3 | 5.2% | 35.7% | 8.5% | 1953 | $2,521 | 83.4% | 98.6% | 4.3% |
| ZIP 20854 | 3.01 | 48.1 | 5.5% | 10.9% | 4.7% | 1979 | $3,231 | 85.2% | 97.4% | 2.9% |
All figures 2020–24.
Zip codes with similar populations: 96857, HI · 62870, IL · 65211, MO · 65254, MO · 67067, KS · 71937, AR · 73728, OK · 32359, FL · 77455, TX · 24324, 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 20818. 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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