Population 14,158 · Census ACS 2020–24
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Population and households in ZIP 20166
Household size in ZIP 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.96 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 2.82 | 2.82 | 2.68 | 2.73 |
| 2015–19 | 2.84 | 2.86 | 2.68 | 2.71 |
| 2020–24 | 2.86 | 2.77 | 2.62 | 2.65 |
| Change | −0.10 | +0.04 | −0.01 | −0.03 |
Households in ZIP 20166 average 2.86 people, above the national 2.65, so families with children are more common here. Household size has dropped from 2.96 in 2006–10, a much bigger shift than nationally. Households are largest in the southwest and smallest in the northeast.
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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.5 | 37.0 | 38.2 | 37.7 |
| 2010–14 | 34.2 | 37.6 | 39.0 | 38.6 |
| 2015–19 | 33.8 | 38.5 | 40.0 | 39.6 |
| 2020–24 | 35.0 | 39.2 | 40.3 | 40.1 |
| Change | +3.4 | +2.2 | +2.1 | +2.3 |
With a median age of just 35.0, ZIP 20166 is far younger than the country as a whole (40.1), a population that tilts toward young families with children. Since 2006–10, the median age has climbed from 31.5, mirroring the country. ZIP 20166 is younger than the great majority of Virginia ZIP codes.
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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.5% | 11.3% | 11.1% | 12.3% |
| 2010–14 | 11.4% | 11.3% | 11.0% | 12.3% |
| 2015–19 | 8.1% | 10.4% | 10.5% | 11.6% |
| 2020–24 | 11.9% | 10.4% | 10.7% | 11.6% |
| Change | +2.5 pts | −0.9 pts | −0.4 pts | −0.6 pts |
Single parents head about one in eight households in ZIP 20166 (11.9%), close to the national share of 11.6%. Single parents are more common here than in the Washington area as a whole (10.4%). Since 2006–10, the single-parent share has risen 2.5 points, even as 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 20166
Renters in ZIP 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 37.3% | 34.0% | 31.1% | 33.3% |
| 2010–14 | 42.3% | 36.6% | 33.3% | 35.6% |
| 2015–19 | 44.3% | 36.8% | 33.7% | 36.0% |
| 2020–24 | 46.3% | 36.3% | 32.7% | 34.8% |
| Change | +8.9 pts | +2.3 pts | +1.5 pts | +1.5 pts |
Renting is far more common in ZIP 20166 than nationally: 46.3% of households rent their homes, against 34.8%. Just over one in six owners (17.5%) have paid off their mortgages, well below the national share of 39.8%. The renter share is up 8.9 points from 2006–10, a much bigger shift than nationally.
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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.5% | 8.7% | 10.3% | 11.4% |
| 2010–14 | 5.8% | 7.3% | 10.2% | 11.4% |
| 2015–19 | 6.3% | 6.6% | 9.7% | 11.1% |
| 2020–24 | 3.8% | 5.9% | 8.7% | 9.6% |
| Change | −6.7 pts | −2.8 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in ZIP 20166: just 3.8% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy has fallen 6.7 points since 2006–10, a much bigger shift than nationally. ZIP 20166 has a lower vacancy rate than at least four in five Virginia ZIP codes.
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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2001 | 1977 | 1978 | 1974 |
| 2010–14 | 2001 | 1978 | 1980 | 1975 |
| 2015–19 | 2003 | 1979 | 1981 | 1977 |
| 2020–24 | 2006 | 1982 | 1984 | 1980 |
| Change | +5 | +6 | +5 | +6 |
ZIP 20166 has newer housing than the country as a whole: the median home was built in 2006, versus 1980 nationally. The median year built has moved up from 2001 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the north has the oldest housing. Only five of the 355 Virginia 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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,703 | $1,470 | $1,143 | $965 |
| 2010–14 | $1,724 | $1,583 | $1,238 | $1,040 |
| 2015–19 | $2,133 | $1,907 | $1,436 | $1,213 |
| 2020–24 | $2,480 | $2,236 | $1,743 | $1,571 |
| Change | +$777 | +$766 | +$600 | +$606 |
A typical rental in ZIP 20166 costs $2,480 a month with utilities, well above the national median of $1,571. Rents are up $777 a month from 2006–10, a 46% rise, a slower climb than the nation's. The typical renter here spends 28.2% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 20166
Bachelor's degrees in ZIP 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 56.3% | 46.6% | 35.2% | 28.4% |
| 2010–14 | 56.3% | 48.2% | 36.7% | 29.6% |
| 2015–19 | 54.2% | 51.0% | 39.3% | 32.1% |
| 2020–24 | 64.0% | 53.9% | 42.5% | 35.6% |
| Change | +7.7 pts | +7.3 pts | +7.3 pts | +7.2 pts |
College graduates are unusually common in ZIP 20166: 64.0% 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. The share with a degree is up 7.7 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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 90.9% | 89.4% | 86.8% | 84.9% |
| 2010–14 | 92.1% | 90.2% | 88.3% | 86.1% |
| 2015–19 | 91.0% | 90.8% | 89.9% | 87.7% |
| 2020–24 | 93.6% | 91.2% | 91.6% | 89.3% |
| Change | +2.7 pts | +1.7 pts | +4.7 pts | +4.3 pts |
High school completion in ZIP 20166 is above the national rate: 93.6% of adults have a diploma, against 89.3%. The share with a diploma has risen 2.7 points since 2006–10, in line with the national trend.
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 20166
| Period | ZIP 20166 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.8% | 5.9% | 6.0% | 8.1% |
| 2010–14 | 3.8% | 6.9% | 7.0% | 9.4% |
| 2015–19 | 2.0% | 4.7% | 4.7% | 5.6% |
| 2020–24 | 3.3% | 4.8% | 4.3% | 5.4% |
| Change | −0.4 pts | −1.1 pts | −1.7 pts | −2.7 pts |
Unemployment in ZIP 20166 has been low: just 3.3% of the labor force was out of work and looking, well below the national rate of 5.4%. 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 20166 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 20166 | 2.86 | 35.0 | 11.9% | 46.3% | 3.8% | 2006 | $2,480 | 64.0% | 93.6% | 3.3% |
| ZIP 20164 | 3.43 | 37.1 | 14.0% | 24.7% | 5.4% | 1982 | $2,427 | 37.4% | 80.3% | 3.7% |
| ZIP 20170 | 3.27 | 36.3 | 10.4% | 32.1% | 4.6% | 1984 | $2,602 | 57.3% | 86.9% | 3.9% |
| ZIP 20147 | 2.58 | 39.2 | 6.6% | 33.0% | 4.3% | 2007 | $2,511 | 70.7% | 95.8% | 4.2% |
| ZIP 20148 | 3.11 | 38.5 | 6.1% | 18.8% | 1.3% | 2010 | $2,847 | 78.3% | 97.3% | 2.7% |
| ZIP 20165 | 2.85 | 38.5 | 6.4% | 22.1% | 4.7% | 1995 | $2,496 | 68.0% | 96.9% | 4.1% |
| ZIP 20171 | 2.76 | 37.9 | 5.7% | 42.6% | 4.7% | 1996 | $2,600 | 74.2% | 96.8% | 2.7% |
| ZIP 20194 | 2.26 | 44.8 | 4.2% | 27.6% | 2.9% | 1990 | $2,736 | 80.3% | 99.6% | 3.8% |
| ZIP 20190 | 1.96 | 40.0 | 6.8% | 51.5% | 6.4% | 1992 | $2,297 | 74.1% | 96.9% | 3.3% |
| ZIP 20191 | 2.63 | 39.1 | 9.2% | 32.7% | 7.4% | 1982 | $2,095 | 67.2% | 93.8% | 5.9% |
| ZIP 22066 | 3.08 | 45.9 | 3.5% | 5.1% | 3.4% | 1985 | $3,399 | 85.1% | 98.9% | 3.3% |
All figures 2020–24.
Zip codes with similar populations: 98057, WA · 01527, MA · 79772, TX · 80107, CO · 19934, DE · 93730, CA · 15226, PA · 07734, NJ · 12528, NY · 06812, CT
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 20166. 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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