Population 30,502 · Census ACS 2020–24
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Population and households in ZIP 22101
Household size in ZIP 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.70 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 2.80 | 2.82 | 2.68 | 2.73 |
| 2015–19 | 2.90 | 2.86 | 2.68 | 2.71 |
| 2020–24 | 2.86 | 2.77 | 2.62 | 2.65 |
| Change | +0.17 | +0.04 | −0.01 | −0.03 |
Households in ZIP 22101 average 2.86 people, above the national 2.65, so families with children are more common here. Household size has climbed from 2.70 in 2006–10, even as the national average fell. Households are largest in the southwest 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.7 | 37.0 | 38.2 | 37.7 |
| 2010–14 | 46.1 | 37.6 | 39.0 | 38.6 |
| 2015–19 | 46.5 | 38.5 | 40.0 | 39.6 |
| 2020–24 | 47.1 | 39.2 | 40.3 | 40.1 |
| Change | +1.4 | +2.2 | +2.1 | +2.3 |
With a median age of 47.1, ZIP 22101 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 45.7, as it has nationally. Only 28 of the 355 Virginia ZIP codes with 5,000+ people 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.4% | 11.3% | 11.1% | 12.3% |
| 2010–14 | 5.0% | 11.3% | 11.0% | 12.3% |
| 2015–19 | 5.2% | 10.4% | 10.5% | 11.6% |
| 2020–24 | 4.2% | 10.4% | 10.7% | 11.6% |
| Change | −1.2 pts | −0.9 pts | −0.4 pts | −0.6 pts |
Single parents head only 4.2% of households in ZIP 22101, well below the national share of 11.6%. The single-parent share has edged down 1.2 points since 2006–10, as it has nationally. Of the 355 Virginia ZIP codes with 5,000+ people, only 15 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 22101
Renters in ZIP 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.4% | 34.0% | 31.1% | 33.3% |
| 2010–14 | 15.4% | 36.6% | 33.3% | 35.6% |
| 2015–19 | 16.1% | 36.8% | 33.7% | 36.0% |
| 2020–24 | 16.2% | 36.3% | 32.7% | 34.8% |
| Change | +0.8 pts | +2.3 pts | +1.5 pts | +1.5 pts |
ZIP 22101 is largely a place of homeowners: only 16.2% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 33.3% have no mortgage at all, below the national share of 39.8%. The renter share is up 0.8 points from 2006–10, as it has 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.4% | 8.7% | 10.3% | 11.4% |
| 2010–14 | 4.2% | 7.3% | 10.2% | 11.4% |
| 2015–19 | 7.8% | 6.6% | 9.7% | 11.1% |
| 2020–24 | 5.3% | 5.9% | 8.7% | 9.6% |
| Change | −4.1 pts | −2.8 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in ZIP 22101: just 5.3% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. The Washington area as a whole looks much the same. Vacancy has fallen 4.1 points since 2006–10, 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 1969 | 1977 | 1978 | 1974 |
| 2010–14 | 1970 | 1978 | 1980 | 1975 |
| 2015–19 | 1971 | 1979 | 1981 | 1977 |
| 2020–24 | 1975 | 1982 | 1984 | 1980 |
| Change | +6 | +6 | +5 | +6 |
Homes in ZIP 22101 run a bit older than the national norm, with a median build year of 1975 against 1980. The median year built has moved up from 1969 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the south 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,824 | $1,470 | $1,143 | $965 |
| 2010–14 | $1,920 | $1,583 | $1,238 | $1,040 |
| 2015–19 | $2,982 | $1,907 | $1,436 | $1,213 |
| 2020–24 | $3,098 | $2,236 | $1,743 | $1,571 |
| Change | +$1,274 | +$766 | +$600 | +$606 |
The median renter in ZIP 22101 pays $3,098 a month for rent and utilities, well above the national median of $1,571. Rent has climbed $1,274 a month since 2006–10, up 70%, faster than rents rose nationally. The typical renter here spends 32.0% of household income on rent, just over the 30% mark often used to define affordable rent. The priciest rents are in the east; the most affordable are in the west.
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 22101
Bachelor's degrees in ZIP 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 78.8% | 46.6% | 35.2% | 28.4% |
| 2010–14 | 81.6% | 48.2% | 36.7% | 29.6% |
| 2015–19 | 83.1% | 51.0% | 39.3% | 32.1% |
| 2020–24 | 85.8% | 53.9% | 42.5% | 35.6% |
| Change | +7.0 pts | +7.3 pts | +7.3 pts | +7.2 pts |
College graduates are unusually common in ZIP 22101: 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. The share with a degree is up 7.0 points from 2006–10, in line with the national trend. Only one other Virginia 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 97.8% | 89.4% | 86.8% | 84.9% |
| 2010–14 | 98.3% | 90.2% | 88.3% | 86.1% |
| 2015–19 | 98.0% | 90.8% | 89.9% | 87.7% |
| 2020–24 | 97.1% | 91.2% | 91.6% | 89.3% |
| Change | −0.8 pts | +1.7 pts | +4.7 pts | +4.3 pts |
Finishing high school is nearly universal in ZIP 22101: 97.1% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma is down 0.8 points from 2006–10, even as the national rate rose. Of the 355 Virginia ZIP codes with 5,000+ people, only 34 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 22101
| Period | ZIP 22101 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.9% | 5.9% | 6.0% | 8.1% |
| 2010–14 | 5.1% | 6.9% | 7.0% | 9.4% |
| 2015–19 | 3.0% | 4.7% | 4.7% | 5.6% |
| 2020–24 | 2.3% | 4.8% | 4.3% | 5.4% |
| Change | −0.6 pts | −1.1 pts | −1.7 pts | −2.7 pts |
Unemployment in ZIP 22101 has been low: just 2.3% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has edged down 0.6 points since 2006–10, a smaller shift than 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 22101 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 22101 | 2.86 | 47.1 | 4.2% | 16.2% | 5.3% | 1975 | $3,098 | 85.8% | 97.1% | 2.3% |
| ZIP 22043 | 2.69 | 39.1 | 6.5% | 38.1% | 4.2% | 1975 | $2,586 | 69.5% | 92.8% | 2.3% |
| ZIP 22213 | 2.78 | 44.1 | 6.9% | 23.0% | 8.4% | 1966 | $3,500 | 77.0% | 90.4% | 2.3% |
| ZIP 22102 | 2.29 | 39.0 | 6.7% | 52.9% | 7.2% | 1993 | $2,583 | 84.0% | 98.4% | 4.3% |
| ZIP 20812 | 2.90 | 49.8 | 1.0% | 0.3% | 17.9% | 1957 | $2,963 | 80.5% | 98.8% | 0.4% |
| ZIP 22207 | 2.88 | 42.1 | 5.6% | 20.1% | 6.7% | 1959 | $2,969 | 81.2% | 98.0% | 2.8% |
| ZIP 20818 | 2.50 | 53.3 | 0.5% | 4.9% | 8.7% | 1977 | $3,494 | 87.0% | 99.2% | 0.0% |
| ZIP 22046 | 2.58 | 40.7 | 7.3% | 38.7% | 4.1% | 1972 | $2,268 | 76.1% | 93.6% | 4.1% |
| ZIP 20816 | 2.87 | 44.1 | 5.1% | 16.7% | 5.7% | 1958 | $3,008 | 89.6% | 97.8% | 5.1% |
| ZIP 22027 | 2.81 | 44.4 | 2.2% | 21.4% | 2.1% | 1987 | $2,908 | 77.6% | 98.1% | 2.2% |
| ZIP 22205 | 2.68 | 42.3 | 6.6% | 24.1% | 4.9% | 1956 | $2,897 | 80.9% | 97.6% | 2.9% |
All figures 2020–24.
Zip codes with similar populations: 21801, MD · 34142, FL · 84128, UT · 46201, IN · 48236, MI · 50158, IA · 55068, MN · 63146, MO · 71107, LA · 74464, OK
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 22101. 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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