Population 27,730 · Census ACS 2020–24
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Population and households in ZIP 20121
Household size in ZIP 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.94 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 3.05 | 2.82 | 2.68 | 2.73 |
| 2015–19 | 3.11 | 2.86 | 2.68 | 2.71 |
| 2020–24 | 2.82 | 2.77 | 2.62 | 2.65 |
| Change | −0.12 | +0.04 | −0.01 | −0.03 |
The typical household in ZIP 20121 holds 2.82 people, more than the U.S. average of 2.65. Household size has dropped from 2.94 in 2006–10, a much bigger shift than nationally. Households are largest in the west and smallest in the north.
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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 31.4 | 37.0 | 38.2 | 37.7 |
| 2010–14 | 33.4 | 37.6 | 39.0 | 38.6 |
| 2015–19 | 35.5 | 38.5 | 40.0 | 39.6 |
| 2020–24 | 36.7 | 39.2 | 40.3 | 40.1 |
| Change | +5.4 | +2.2 | +2.1 | +2.3 |
ZIP 20121 is younger than the country as a whole: its median age is 36.7, against 40.1 nationally. The median age has climbed from 31.4 in 2006–10, mirroring the country. Residents skew youngest in the northeast and oldest in the west.
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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.9% | 11.3% | 11.1% | 12.3% |
| 2010–14 | 11.4% | 11.3% | 11.0% | 12.3% |
| 2015–19 | 7.9% | 10.4% | 10.5% | 11.6% |
| 2020–24 | 11.1% | 10.4% | 10.7% | 11.6% |
| Change | +0.2 pts | −0.9 pts | −0.4 pts | −0.6 pts |
Single-parent households are about as common in ZIP 20121 as they are nationally: 11.1%, against 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 20121
Renters in ZIP 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 29.2% | 34.0% | 31.1% | 33.3% |
| 2010–14 | 36.1% | 36.6% | 33.3% | 35.6% |
| 2015–19 | 37.2% | 36.8% | 33.7% | 36.0% |
| 2020–24 | 30.0% | 36.3% | 32.7% | 34.8% |
| Change | +0.8 pts | +2.3 pts | +1.5 pts | +1.5 pts |
Most households in ZIP 20121 own their homes; 30.0% rent, a little below the national share of 34.8%. Among homeowners, 26.2% have no mortgage at all, well below the national share of 39.8%. The renter share has edged up 0.8 points since 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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.7% | 8.7% | 10.3% | 11.4% |
| 2010–14 | 5.1% | 7.3% | 10.2% | 11.4% |
| 2015–19 | 5.3% | 6.6% | 9.7% | 11.1% |
| 2020–24 | 3.1% | 5.9% | 8.7% | 9.6% |
| Change | −2.6 pts | −2.8 pts | −1.6 pts | −1.8 pts |
Only 3.1% of homes in ZIP 20121 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 2.6 points from 2006–10, as it has nationally. Of the 355 Virginia ZIP codes with 5,000+ people, only 14 have a lower vacancy rate.
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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 1990 | 1977 | 1978 | 1974 |
| 2010–14 | 1991 | 1978 | 1980 | 1975 |
| 2015–19 | 1989 | 1979 | 1981 | 1977 |
| 2020–24 | 1990 | 1982 | 1984 | 1980 |
| Change | +1 | +6 | +5 | +6 |
ZIP 20121 has newer housing than the country as a whole: the median home was built in 1990, versus 1980 nationally. ZIP 20121 has newer homes than most Virginia 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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,690 | $1,470 | $1,143 | $965 |
| 2010–14 | $1,781 | $1,583 | $1,238 | $1,040 |
| 2015–19 | $2,031 | $1,907 | $1,436 | $1,213 |
| 2020–24 | $2,325 | $2,236 | $1,743 | $1,571 |
| Change | +$635 | +$766 | +$600 | +$606 |
A typical rental in ZIP 20121 costs $2,325 a month with utilities, well above the national median of $1,571. Rent has climbed $635 a month since 2006–10, up 38%, a slower climb than the nation's. The typical renter here spends 33.6% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the south and lowest in the northwest.
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 20121
Bachelor's degrees in ZIP 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 53.5% | 46.6% | 35.2% | 28.4% |
| 2010–14 | 51.3% | 48.2% | 36.7% | 29.6% |
| 2015–19 | 54.9% | 51.0% | 39.3% | 32.1% |
| 2020–24 | 54.2% | 53.9% | 42.5% | 35.6% |
| Change | +0.7 pts | +7.3 pts | +7.3 pts | +7.2 pts |
ZIP 20121 is highly educated: more than half of adults 25 and older (54.2%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has edged up 0.7 points, a smaller shift than nationally. College graduates are most concentrated in the southeast and least in the northwest.
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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.0% | 89.4% | 86.8% | 84.9% |
| 2010–14 | 92.3% | 90.2% | 88.3% | 86.1% |
| 2015–19 | 92.6% | 90.8% | 89.9% | 87.7% |
| 2020–24 | 93.5% | 91.2% | 91.6% | 89.3% |
| Change | +1.5 pts | +1.7 pts | +4.7 pts | +4.3 pts |
High school completion in ZIP 20121 is above the national rate: 93.5% of adults have a diploma, against 89.3%. The share with a diploma is up 1.5 points from 2006–10, as it has nationally.
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 20121
| Period | ZIP 20121 | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.0% | 5.9% | 6.0% | 8.1% |
| 2010–14 | 5.5% | 6.9% | 7.0% | 9.4% |
| 2015–19 | 3.1% | 4.7% | 4.7% | 5.6% |
| 2020–24 | 3.4% | 4.8% | 4.3% | 5.4% |
| Change | −1.5 pts | −1.1 pts | −1.7 pts | −2.7 pts |
Jobs have been easier to find in ZIP 20121 than nationally: unemployment was 3.4%, against 5.4%. Unemployment has fallen 1.5 points since 2006–10, in line with the national trend. 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 20121 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 20121 | 2.82 | 36.7 | 11.1% | 30.0% | 3.1% | 1990 | $2,325 | 54.2% | 93.5% | 3.4% |
| ZIP 20120 | 3.01 | 38.0 | 9.3% | 25.4% | 2.2% | 1993 | $2,567 | 60.9% | 95.2% | 4.6% |
| ZIP 20124 | 3.04 | 47.4 | 3.5% | 7.3% | 1.5% | 1988 | $2,437 | 74.5% | 97.6% | 4.9% |
| ZIP 20111 | 3.42 | 36.0 | 14.7% | 32.7% | 5.4% | 1988 | $2,124 | 32.2% | 81.6% | 4.6% |
| ZIP 20151 | 3.27 | 41.3 | 8.1% | 17.1% | 1.6% | 1988 | $2,529 | 57.8% | 88.5% | 2.9% |
| ZIP 22033 | 2.60 | 39.1 | 5.3% | 36.2% | 4.4% | 1990 | $2,408 | 67.9% | 94.4% | 3.1% |
| ZIP 22035 | 2.18 | 39.1 | 4.9% | 77.4% | 4.0% | 2007 | $1,897 | 82.4% | 100.0% | 3.9% |
| ZIP 20109 | 3.10 | 33.8 | 15.8% | 55.6% | 5.3% | 1989 | $2,080 | 35.5% | 81.4% | 4.6% |
| ZIP 20110 | 3.21 | 35.5 | 12.4% | 26.4% | 3.3% | 1987 | $1,963 | 35.2% | 82.2% | 3.6% |
| ZIP 22030 | 2.71 | 36.0 | 6.1% | 42.6% | 3.4% | 1987 | $2,404 | 67.3% | 93.8% | 5.2% |
| ZIP 20152 | 3.35 | 38.9 | 7.3% | 15.3% | 2.3% | 2006 | $3,069 | 69.6% | 94.3% | 3.1% |
All figures 2020–24.
Zip codes with similar populations: 02126, MA · 78746, TX · 34266, FL · 22310, VA · 91384, CA · 77022, TX · 46229, IN · 45244, OH · 45056, OH · 43537, OH
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 20121. 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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