Population 37,862 · Census ACS 2020–24
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Population and households in ZIP 20817
Household size in ZIP 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.68 | 2.73 | 2.68 | 2.68 |
| 2010–14 | 2.76 | 2.82 | 2.73 | 2.73 |
| 2015–19 | 2.80 | 2.86 | 2.74 | 2.71 |
| 2020–24 | 2.82 | 2.77 | 2.68 | 2.65 |
| Change | +0.14 | +0.04 | +0.01 | −0.03 |
The typical household in ZIP 20817 holds 2.82 people, more than the U.S. average of 2.65. Since 2006–10, household size has climbed from 2.68, even as the national average fell. Households are largest in the center and smallest in the northwest.
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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 43.8 | 37.0 | 38.5 | 37.7 |
| 2010–14 | 45.4 | 37.6 | 39.3 | 38.6 |
| 2015–19 | 46.4 | 38.5 | 40.2 | 39.6 |
| 2020–24 | 46.8 | 39.2 | 40.6 | 40.1 |
| Change | +2.9 | +2.2 | +2.1 | +2.3 |
With a median age of 46.8, ZIP 20817 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 43.8 in 2006–10, in line with the national trend. Of the 240 Maryland ZIP codes with 5,000+ people, only 18 are older.
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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.9% | 11.3% | 12.5% | 12.3% |
| 2010–14 | 5.7% | 11.3% | 12.6% | 12.3% |
| 2015–19 | 4.0% | 10.4% | 11.7% | 11.6% |
| 2020–24 | 4.0% | 10.4% | 11.7% | 11.6% |
| Change | −1.0 pts | −0.9 pts | −0.9 pts | −0.6 pts |
Single parents head only 4.0% of households in ZIP 20817, well below the national share of 11.6%. The single-parent share has edged down 1.0 points since 2006–10, as it has nationally. Of the 240 Maryland ZIP codes with 5,000+ people, only six 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 20817
Renters in ZIP 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 16.8% | 34.0% | 31.0% | 33.3% |
| 2010–14 | 17.5% | 36.6% | 32.9% | 35.6% |
| 2015–19 | 15.6% | 36.8% | 33.1% | 36.0% |
| 2020–24 | 18.9% | 36.3% | 32.4% | 34.8% |
| Change | +2.1 pts | +2.3 pts | +1.4 pts | +1.5 pts |
Only 18.9% of households in ZIP 20817 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 31.9% have no mortgage at all, below the national share of 39.8%. Rentals cluster in the northwest; owners are most common in the southwest. Since 2006–10, the renter share has risen 2.1 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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.3% | 8.7% | 9.0% | 11.4% |
| 2010–14 | 7.4% | 7.3% | 8.9% | 11.4% |
| 2015–19 | 6.4% | 6.6% | 8.9% | 11.1% |
| 2020–24 | 7.2% | 5.9% | 7.1% | 9.6% |
| Change | +2.9 pts | −2.8 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 20817 than nationally: 7.2%, against 9.6% for the U.S. The Washington area as a whole looks much the same. Vacancy has risen 2.9 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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1965 | 1977 | 1974 | 1974 |
| 2010–14 | 1965 | 1978 | 1975 | 1975 |
| 2015–19 | 1966 | 1979 | 1976 | 1977 |
| 2020–24 | 1970 | 1982 | 1978 | 1980 |
| Change | +5 | +6 | +4 | +6 |
The housing in ZIP 20817 is old by national standards: the median home dates to 1970, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1965 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the northeast has the oldest housing.
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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,871 | $1,470 | $1,249 | $965 |
| 2010–14 | $1,898 | $1,583 | $1,363 | $1,040 |
| 2015–19 | $2,725 | $1,907 | $1,576 | $1,213 |
| 2020–24 | $3,222 | $2,236 | $1,869 | $1,571 |
| Change | +$1,350 | +$766 | +$620 | +$606 |
The median renter in ZIP 20817 pays $3,222 a month for rent and utilities, well above the national median of $1,571. Rent has climbed $1,350 a month since 2006–10, up 72%, faster than rents rose nationally. Rent takes 30.8% of the typical renter's income, just over the 30% mark often used to define affordable rent. Only one other Maryland ZIP code with 5,000+ people has higher rents.
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 20817
Bachelor's degrees in ZIP 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 79.6% | 46.6% | 36.3% | 28.4% |
| 2010–14 | 80.6% | 48.2% | 37.7% | 29.6% |
| 2015–19 | 83.8% | 51.0% | 40.5% | 32.1% |
| 2020–24 | 85.8% | 53.9% | 43.4% | 35.6% |
| Change | +6.2 pts | +7.3 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in ZIP 20817: 85.8% 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. Since 2006–10, the share with a degree has risen 6.2 points, in line with the national trend. Only one other Maryland ZIP code with 5,000+ people has a higher share of college graduates.
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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.1% | 89.4% | 88.0% | 84.9% |
| 2010–14 | 98.0% | 90.2% | 89.1% | 86.1% |
| 2015–19 | 98.2% | 90.8% | 90.2% | 87.7% |
| 2020–24 | 98.1% | 91.2% | 90.9% | 89.3% |
| Change | +1.1 pts | +1.7 pts | +2.9 pts | +4.3 pts |
Finishing high school is nearly universal in ZIP 20817: 98.1% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is up 1.1 points from 2006–10, a smaller shift than nationally. Only eight of the 240 Maryland ZIP codes with 5,000+ people have a higher share of high school graduates.
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 20817
| Period | ZIP 20817 | Washington area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.5% | 5.9% | 6.5% | 8.1% |
| 2010–14 | 3.8% | 6.9% | 8.1% | 9.4% |
| 2015–19 | 3.4% | 4.7% | 5.1% | 5.6% |
| 2020–24 | 3.7% | 4.8% | 5.0% | 5.4% |
| Change | +0.2 pts | −1.1 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 20817 runs below the national rate: 3.7% 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 20817 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 20817 | 2.82 | 46.8 | 4.0% | 18.9% | 7.2% | 1970 | $3,222 | 85.8% | 98.1% | 3.7% |
| ZIP 20814 | 2.33 | 41.7 | 5.6% | 48.3% | 8.3% | 1978 | $2,623 | 83.9% | 98.0% | 3.2% |
| 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 20889 | 2.24 | 21.9 | 3.2% | 100.0% | 7.1% | 1950 | $3,501 | 33.7% | 100.0% | 0.0% |
| ZIP 20816 | 2.87 | 44.1 | 5.1% | 16.7% | 5.7% | 1958 | $3,008 | 89.6% | 97.8% | 5.1% |
| ZIP 20815 | 2.46 | 48.0 | 6.1% | 35.0% | 7.6% | 1961 | $2,925 | 83.7% | 96.9% | 2.4% |
| ZIP 20896 | 2.88 | 49.7 | 4.3% | 3.4% | 5.0% | 1952 | $3,250 | 88.3% | 99.4% | 2.4% |
| ZIP 20852 | 2.34 | 39.7 | 8.7% | 58.7% | 6.1% | 1984 | $2,428 | 73.4% | 93.8% | 3.3% |
| ZIP 20895 | 2.73 | 42.8 | 5.9% | 22.7% | 5.1% | 1961 | $2,664 | 73.4% | 96.0% | 3.8% |
| 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: 48060, MI · 38116, TN · 39042, MS · 39047, MS · 40219, KY · 43615, OH · 45385, OH · 46368, IN · 46410, IN · 48047, MI
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 20817. 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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