Population 1,370 · Census ACS 2020–24
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Population and households in ZIP 21640
Household size in ZIP 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.99 | 2.61 | 2.68 | 2.68 |
| 2010–14 | 2.86 | 2.65 | 2.73 | 2.73 |
| 2015–19 | 2.93 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.70 | 2.59 | 2.68 | 2.65 |
| Change | −0.29 | −0.02 | +0.01 | −0.03 |
Households in ZIP 21640 average 2.70 people, about the same as the country as a whole (2.65). The typical household here is bigger than in the Baltimore area overall, where it has 2.59 people. Household size has dropped from 2.99 in 2006–10, 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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 34.4 | 38.7 | 38.5 | 37.7 |
| 2010–14 | 39.2 | 39.5 | 39.3 | 38.6 |
| 2015–19 | 37.7 | 40.2 | 40.2 | 39.6 |
| 2020–24 | 37.2 | 40.3 | 40.6 | 40.1 |
| Change | +2.8 | +1.6 | +2.1 | +2.3 |
ZIP 21640 is younger than the country as a whole: its median age is 37.2, against 40.1 nationally.
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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 13.1% | 12.6% | 12.5% | 12.3% |
| 2010–14 | 12.2% | 12.3% | 12.6% | 12.3% |
| 2015–19 | 14.5% | 11.6% | 11.7% | 11.6% |
| 2020–24 | 23.8% | 11.5% | 11.7% | 11.6% |
| Change | +10.8 pts | −1.1 pts | −0.9 pts | −0.6 pts |
Single-parent households are common in ZIP 21640: 23.8% 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 21640
Renters in ZIP 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 32.7% | 32.0% | 31.0% | 33.3% |
| 2010–14 | 26.1% | 33.5% | 32.9% | 35.6% |
| 2015–19 | 21.8% | 33.5% | 33.1% | 36.0% |
| 2020–24 | 13.7% | 33.1% | 32.4% | 34.8% |
| Change | −19.1 pts | +1.1 pts | +1.4 pts | +1.5 pts |
Only 13.7% of households in ZIP 21640 rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. About half of owners (48.8%) have paid off their mortgages, above 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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.9% | 9.3% | 9.0% | 11.4% |
| 2010–14 | 11.3% | 9.3% | 8.9% | 11.4% |
| 2015–19 | 10.7% | 9.4% | 8.9% | 11.1% |
| 2020–24 | 8.9% | 7.2% | 7.1% | 9.6% |
| Change | −0.9 pts | −2.1 pts | −1.9 pts | −1.8 pts |
About as many homes sit empty in ZIP 21640 as nationally: 8.9%, against 9.6%. The rate is higher than in the Baltimore area as a whole (7.2%).
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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1982 | 1971 | 1974 | 1974 |
| 2010–14 | 1979 | 1972 | 1975 | 1975 |
| 2015–19 | 1976 | 1973 | 1976 | 1977 |
| 2020–24 | 1983 | 1975 | 1978 | 1980 |
| Change | +0 | +4 | +4 | +6 |
The typical home in ZIP 21640 was built around 1983, about the same vintage as the country's housing overall (1980). Homes here are newer than in the wider Baltimore area, where the median home dates to 1975.
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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,068 | $1,179 | $1,249 | $965 |
| 2010–14 | $950 | $1,293 | $1,363 | $1,040 |
| 2015–19 | $1,018 | $1,477 | $1,576 | $1,213 |
| 2020–24 | $1,646 | $1,778 | $1,869 | $1,571 |
| Change | +$578 | +$599 | +$620 | +$606 |
Rent in ZIP 21640 runs $1,646 a month at the median, utilities included, close to the U.S. median of $1,571. Rents here are lower than in the Baltimore area as a whole ($1,778). The typical renter here spends 31.7% of household income on rent, just over 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 21640
Bachelor's degrees in ZIP 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.2% | 35.6% | 36.3% | 28.4% |
| 2010–14 | 6.0% | 37.3% | 37.7% | 29.6% |
| 2015–19 | 8.7% | 40.8% | 40.5% | 32.1% |
| 2020–24 | 11.2% | 44.1% | 43.4% | 35.6% |
| Change | +1.0 pts | +8.5 pts | +7.1 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 21640: 11.2% 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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 66.7% | 87.8% | 88.0% | 84.9% |
| 2010–14 | 69.3% | 89.5% | 89.1% | 86.1% |
| 2015–19 | 71.9% | 91.1% | 90.2% | 87.7% |
| 2020–24 | 75.6% | 92.1% | 90.9% | 89.3% |
| Change | +8.9 pts | +4.3 pts | +2.9 pts | +4.3 pts |
About a quarter of adults in ZIP 21640 never finished high school, well above the national share: only 75.6% have a diploma or equivalent, against 89.3% 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 21640
| Period | ZIP 21640 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.8% | 6.6% | 6.5% | 8.1% |
| 2010–14 | 8.4% | 8.3% | 8.1% | 9.4% |
| 2015–19 | 4.6% | 5.2% | 5.1% | 5.6% |
| 2020–24 | 2.3% | 4.8% | 5.0% | 5.4% |
| Change | −3.5 pts | −1.8 pts | −1.5 pts | −2.7 pts |
The job market in ZIP 21640 has been strong: just 2.3% 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 21640 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 21640 | 2.70 | 37.2 | 23.8% | 13.7% | 8.9% | 1983 | $1,646 | 11.2% | 75.6% | 2.3% |
| ZIP 21636 | 2.45 | 42.6 | 22.2% | 14.3% | 11.3% | 1987 | $1,609 | 11.2% | 79.7% | 1.1% |
| ZIP 21649 | 3.12 | 39.7 | 22.2% | 14.7% | 10.6% | 1981 | $1,965 | 13.0% | 77.3% | 3.7% |
| ZIP 21644 | 2.91 | 54.3 | 13.9% | 11.5% | 2.8% | 1988 | $1,625 | 12.9% | 88.1% | 7.4% |
| ZIP 19964 | 2.33 | 45.2 | 11.7% | 15.7% | 2.8% | 1997 | $1,145 | 6.3% | 75.9% | 3.1% |
| ZIP 21607 | 2.91 | 54.3 | 13.9% | 11.5% | 2.8% | 1988 | $1,625 | 12.9% | 88.1% | 7.4% |
| ZIP 21639 | 2.70 | 38.5 | 11.3% | 25.2% | 7.7% | 1979 | $1,192 | 14.7% | 83.5% | 2.2% |
| ZIP 19953 | 2.59 | 40.9 | 13.0% | 22.1% | 3.4% | 1990 | $1,271 | 8.4% | 81.5% | 8.6% |
| ZIP 21668 | 2.67 | 42.8 | 14.5% | 25.1% | 7.5% | 1988 | $1,157 | 18.7% | 92.4% | 5.8% |
| ZIP 21660 | 2.79 | 38.0 | 8.2% | 23.3% | 4.2% | 1989 | $1,043 | 15.7% | 80.8% | 8.5% |
| ZIP 21623 | 2.87 | 39.0 | 12.0% | 14.7% | 5.3% | 1997 | $1,261 | 24.8% | 87.4% | 3.2% |
All figures 2020–24.
Zip codes with similar populations: 95469, CA · 83539, ID · 79734, TX · 78235, TX · 17721, PA · 52142, IA · 57533, SD · 56110, MN · 55949, MN · 55790, MN
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 21640. 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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