Population 1,535 · Census ACS 2020–24
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Population and households in ZIP 21733
Household size in ZIP 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 2.92 | 2.68 | 2.68 |
| 2010–14 | 2.47 | 2.73 | 2.73 |
| 2015–19 | 2.58 | 2.74 | 2.71 |
| 2020–24 | 2.88 | 2.68 | 2.65 |
| Change | −0.03 | +0.01 | −0.03 |
Households in ZIP 21733 average 2.88 people, above the national 2.65, so families with children are more common here.
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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 41.5 | 38.5 | 37.7 |
| 2010–14 | 45.3 | 39.3 | 38.6 |
| 2015–19 | 46.4 | 40.2 | 39.6 |
| 2020–24 | 39.9 | 40.6 | 40.1 |
| Change | −1.7 | +2.1 | +2.3 |
At 39.9, the median age in ZIP 21733 is close to the national median of 40.1, so its age mix looks much like the country's. The median age has dropped from 41.5 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.
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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 6.1% | 12.5% | 12.3% |
| 2010–14 | 6.2% | 12.6% | 12.3% |
| 2015–19 | 9.7% | 11.7% | 11.6% |
| 2020–24 | 5.1% | 11.7% | 11.6% |
| Change | −1.0 pts | −0.9 pts | −0.6 pts |
Single parents head only 5.1% of households in ZIP 21733, well below the national share of 11.6%.
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 21733
Renters in ZIP 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 12.6% | 31.0% | 33.3% |
| 2010–14 | 19.8% | 32.9% | 35.6% |
| 2015–19 | 19.3% | 33.1% | 36.0% |
| 2020–24 | 15.9% | 32.4% | 34.8% |
| Change | +3.2 pts | +1.4 pts | +1.5 pts |
Only 15.9% of households in ZIP 21733 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 32.7% have no mortgage at all, 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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 5.7% | 9.0% | 11.4% |
| 2010–14 | 4.5% | 8.9% | 11.4% |
| 2015–19 | 10.6% | 8.9% | 11.1% |
| 2020–24 | 6.9% | 7.1% | 9.6% |
| Change | +1.3 pts | −1.9 pts | −1.8 pts |
Fewer homes sit empty in ZIP 21733 than nationally: 6.9%, against 9.6% for the U.S. Maryland as a whole looks much the same.
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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 1967 | 1974 | 1974 |
| 2010–14 | 1976 | 1975 | 1975 |
| 2015–19 | 1977 | 1976 | 1977 |
| 2020–24 | 1987 | 1978 | 1980 |
| Change | +21 | +4 | +6 |
The housing in ZIP 21733 is younger than the country's: half of it was built after 1987, against 1980 nationally.
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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | $983 | $1,249 | $965 |
| 2010–14 | $993 | $1,363 | $1,040 |
| 2015–19 | $930 | $1,576 | $1,213 |
| 2020–24 | $1,237 | $1,869 | $1,571 |
| Change | +$254 | +$620 | +$606 |
Rent in ZIP 21733 runs $1,237 a month at the median, utilities included, well below the U.S. median of $1,571. Rent takes 26.2% 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 21733
Bachelor's degrees in ZIP 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 16.2% | 36.3% | 28.4% |
| 2010–14 | 25.8% | 37.7% | 29.6% |
| 2015–19 | 15.0% | 40.5% | 32.1% |
| 2020–24 | 25.7% | 43.4% | 35.6% |
| Change | +9.5 pts | +7.1 pts | +7.2 pts |
College degrees are less common in ZIP 21733 than nationally: 25.7% of adults 25 and older have a bachelor's or higher, against 35.6%.
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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 85.1% | 88.0% | 84.9% |
| 2010–14 | 84.7% | 89.1% | 86.1% |
| 2015–19 | 90.8% | 90.2% | 87.7% |
| 2020–24 | 93.3% | 90.9% | 89.3% |
| Change | +8.2 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21733 is above the national rate: 93.3% of adults have a diploma, against 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 21733
| Period | ZIP 21733 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 6.5% | 6.5% | 8.1% |
| 2010–14 | 6.3% | 8.1% | 9.4% |
| 2015–19 | 6.4% | 5.1% | 5.6% |
| 2020–24 | 1.3% | 5.0% | 5.4% |
| Change | −5.2 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21733 has been low: just 1.3% 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 21733 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 21733 | 2.88 | 39.9 | 5.1% | 15.9% | 6.9% | 1987 | $1,237 | 25.7% | 93.3% | 1.3% |
| ZIP 21781 | 2.69 | 43.3 | 14.6% | 19.3% | 4.5% | 2002 | $1,370 | 23.6% | 90.4% | 3.0% |
| ZIP 21746 | 2.48 | 37.3 | 12.6% | 33.2% | 6.7% | 1974 | $1,147 | 2.3% | 70.6% | 4.2% |
| ZIP 21795 | 2.60 | 41.3 | 16.1% | 35.2% | 12.6% | 1975 | $1,202 | 27.4% | 91.1% | 4.5% |
| ZIP 21734 | 1.99 | 52.8 | 2.3% | 50.9% | 3.9% | 1953 | $1,256 | 19.4% | 90.2% | 3.4% |
| ZIP 21713 | 2.58 | 45.8 | 9.8% | 17.1% | 3.7% | 1981 | $1,208 | 29.3% | 93.4% | 2.0% |
| ZIP 21740 | 2.48 | 39.6 | 15.8% | 44.6% | 8.0% | 1972 | $1,189 | 21.2% | 86.5% | 5.2% |
| ZIP 21782 | 2.45 | 48.6 | 8.9% | 11.6% | 9.8% | 1979 | $1,191 | 26.4% | 93.2% | 9.4% |
| ZIP 21756 | 2.83 | 42.0 | 15.1% | 7.8% | 4.3% | 1991 | $1,450 | 31.7% | 94.6% | 4.1% |
| ZIP 25419 | 2.57 | 41.9 | 14.9% | 17.9% | 6.6% | 1999 | $1,244 | 23.6% | 91.0% | 4.5% |
| ZIP 25443 | 2.58 | 39.0 | 10.8% | 15.3% | 7.2% | 1989 | $1,197 | 52.6% | 94.1% | 4.3% |
All figures 2020–24.
Zip codes with similar populations: 93432, CA · 53550, WI · 57355, SD · 56279, MN · 55929, MN · 55924, MN · 54921, WI · 54749, WI · 54733, WI · 54723, WI
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 21733. 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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