Population 3,229 · Census ACS 2020–24
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Population and households in ZIP 21850
Household size in ZIP 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 2.56 | 2.68 | 2.68 |
| 2010–14 | 2.54 | 2.73 | 2.73 |
| 2015–19 | 2.64 | 2.74 | 2.71 |
| 2020–24 | 2.35 | 2.68 | 2.65 |
| Change | −0.21 | +0.01 | −0.03 |
ZIP 21850 is a place of small households, averaging 2.35 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Since 2006–10, household size has dropped from 2.56, but in a place this small, survey estimates can swing a lot from one release to the next.
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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 39.1 | 38.5 | 37.7 |
| 2010–14 | 36.2 | 39.3 | 38.6 |
| 2015–19 | 41.5 | 40.2 | 39.6 |
| 2020–24 | 43.9 | 40.6 | 40.1 |
| Change | +4.8 | +2.1 | +2.3 |
The median resident of ZIP 21850 is 43.9 years old, older than the national median of 40.1.
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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 8.2% | 12.5% | 12.3% |
| 2010–14 | 16.5% | 12.6% | 12.3% |
| 2015–19 | 13.2% | 11.7% | 11.6% |
| 2020–24 | 16.6% | 11.7% | 11.6% |
| Change | +8.5 pts | −0.9 pts | −0.6 pts |
Single-parent households are common in ZIP 21850: 16.6% of all households, against 11.6% nationally.
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 21850
Renters in ZIP 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 15.6% | 31.0% | 33.3% |
| 2010–14 | 17.3% | 32.9% | 35.6% |
| 2015–19 | 21.4% | 33.1% | 36.0% |
| 2020–24 | 10.6% | 32.4% | 34.8% |
| Change | −5.0 pts | +1.4 pts | +1.5 pts |
ZIP 21850 is overwhelmingly a place of homeowners: only 10.6% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. More than a quarter of owners (27.0%) have paid off their mortgages, well 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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 11.0% | 9.0% | 11.4% |
| 2010–14 | 13.8% | 8.9% | 11.4% |
| 2015–19 | 7.4% | 8.9% | 11.1% |
| 2020–24 | 8.3% | 7.1% | 9.6% |
| Change | −2.7 pts | −1.9 pts | −1.8 pts |
Vacancy in ZIP 21850 is close to the national rate: 8.3% of homes are empty, against 9.6%.
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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 1989 | 1974 | 1974 |
| 2010–14 | 1989 | 1975 | 1975 |
| 2015–19 | 1985 | 1976 | 1977 |
| 2020–24 | 1995 | 1978 | 1980 |
| Change | +6 | +4 | +6 |
ZIP 21850 has newer housing than the country as a whole: the median home was built in 1995, versus 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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | $853 | $1,249 | $965 |
| 2010–14 | $966 | $1,363 | $1,040 |
| 2015–19 | $1,039 | $1,576 | $1,213 |
| 2020–24 | $1,106 | $1,869 | $1,571 |
| Change | +$254 | +$620 | +$606 |
The median renter in ZIP 21850 pays $1,106 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 29.6% 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 21850
Bachelor's degrees in ZIP 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 13.0% | 36.3% | 28.4% |
| 2010–14 | 13.9% | 37.7% | 29.6% |
| 2015–19 | 12.8% | 40.5% | 32.1% |
| 2020–24 | 16.1% | 43.4% | 35.6% |
| Change | +3.1 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 21850: 16.1% of adults 25 and older hold a bachelor's or higher, well below the national share of 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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 84.5% | 88.0% | 84.9% |
| 2010–14 | 86.7% | 89.1% | 86.1% |
| 2015–19 | 85.2% | 90.2% | 87.7% |
| 2020–24 | 89.8% | 90.9% | 89.3% |
| Change | +5.3 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21850 is close to the national rate: 89.8% of adults have a diploma or equivalent, 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 21850
| Period | ZIP 21850 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 7.1% | 6.5% | 8.1% |
| 2010–14 | 14.2% | 8.1% | 9.4% |
| 2015–19 | 6.3% | 5.1% | 5.6% |
| 2020–24 | 3.5% | 5.0% | 5.4% |
| Change | −3.6 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21850 runs below the national rate: 3.5% of the labor force was out of work and looking, against 5.4% nationally. 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 21850 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 21850 | 2.35 | 43.9 | 16.6% | 10.6% | 8.3% | 1995 | $1,106 | 16.1% | 89.8% | 3.5% |
| ZIP 21874 | 2.62 | 43.8 | 19.1% | 16.8% | 9.6% | 1985 | $1,383 | 21.4% | 89.4% | 7.5% |
| ZIP 21849 | 2.50 | 39.5 | 14.3% | 20.5% | 6.6% | 1978 | $1,368 | 23.8% | 90.6% | 2.3% |
| ZIP 21872 | 2.22 | 49.1 | 5.6% | 13.9% | 22.0% | 1991 | $1,125 | 36.4% | 87.6% | 0.6% |
| ZIP 21804 | 2.54 | 35.7 | 13.2% | 50.0% | 8.7% | 1983 | $1,422 | 27.0% | 90.3% | 7.1% |
| ZIP 21875 | 2.59 | 38.2 | 12.1% | 27.4% | 8.9% | 1988 | $1,442 | 23.2% | 92.2% | 2.2% |
| ZIP 21862 | 2.29 | 47.0 | 4.8% | 4.7% | 16.1% | 1991 | $1,125 | 35.4% | 87.6% | 0.0% |
| ZIP 21802 | 2.27 | 21.3 | 7.2% | 89.9% | 8.2% | 1995 | $1,087 | 22.0% | 93.8% | 17.0% |
| ZIP 19940 | 3.00 | 45.6 | 9.9% | 15.1% | 9.0% | 1994 | $1,119 | 19.2% | 87.2% | 6.1% |
| ZIP 21841 | 2.18 | 50.1 | 7.8% | 23.7% | 12.5% | 1983 | $1,652 | 16.0% | 96.4% | 3.9% |
| ZIP 21801 | 2.40 | 37.4 | 11.9% | 42.4% | 8.7% | 1978 | $1,246 | 33.6% | 89.4% | 5.7% |
All figures 2020–24.
Zip codes with similar populations: 01518, MA · 95917, CA · 87042, NM · 66757, KS · 65734, MO · 64011, MO · 61531, IL · 45686, OH · 44840, OH · 44643, 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 21850. 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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