Population 32,731 · Census ACS 2020–24
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Population and households in ZIP 21230
Household size in ZIP 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.41 | 2.61 | 2.68 | 2.68 |
| 2010–14 | 2.38 | 2.65 | 2.73 | 2.73 |
| 2015–19 | 2.35 | 2.65 | 2.74 | 2.71 |
| 2020–24 | 2.24 | 2.59 | 2.68 | 2.65 |
| Change | −0.17 | −0.02 | +0.01 | −0.03 |
ZIP 21230 is a place of small households, averaging 2.24 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 2.41 in 2006–10, a much bigger shift than nationally. Only 15 of the 240 Maryland ZIP codes with 5,000+ people have smaller households.
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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 33.9 | 38.7 | 38.5 | 37.7 |
| 2010–14 | 34.3 | 39.5 | 39.3 | 38.6 |
| 2015–19 | 33.3 | 40.2 | 40.2 | 39.6 |
| 2020–24 | 34.7 | 40.3 | 40.6 | 40.1 |
| Change | +0.8 | +1.6 | +2.1 | +2.3 |
ZIP 21230 is young: half of its residents are under 34.7, compared with a national median of 40.1. The population tilts toward young adults, many of them living alone or as couples. The median age has crept up from 33.9 in 2006–10, a smaller shift than nationally. Of the 240 Maryland ZIP codes with 5,000+ people, only 14 are younger.
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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.1% | 12.6% | 12.5% | 12.3% |
| 2010–14 | 13.7% | 12.3% | 12.6% | 12.3% |
| 2015–19 | 11.7% | 11.6% | 11.7% | 11.6% |
| 2020–24 | 9.7% | 11.5% | 11.7% | 11.6% |
| Change | −2.4 pts | −1.1 pts | −0.9 pts | −0.6 pts |
Single parents head about one in ten households in ZIP 21230 (9.7%), a little below the national share of 11.6%. The single-parent share has fallen 2.4 points since 2006–10, a much bigger shift than 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 21230
Renters in ZIP 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.9% | 32.0% | 31.0% | 33.3% |
| 2010–14 | 44.3% | 33.5% | 32.9% | 35.6% |
| 2015–19 | 47.5% | 33.5% | 33.1% | 36.0% |
| 2020–24 | 48.4% | 33.1% | 32.4% | 34.8% |
| Change | +6.5 pts | +1.1 pts | +1.4 pts | +1.5 pts |
Renting is far more common in ZIP 21230 than nationally: 48.4% of households rent their homes, against 34.8%. Among homeowners, 27.0% have no mortgage at all, well below the national share of 39.8%. Renting is most common in the north and least common in the east. The renter share has risen 6.5 points since 2006–10, a much bigger shift than 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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 18.5% | 9.3% | 9.0% | 11.4% |
| 2010–14 | 15.4% | 9.3% | 8.9% | 11.4% |
| 2015–19 | 13.6% | 9.4% | 8.9% | 11.1% |
| 2020–24 | 10.7% | 7.2% | 7.1% | 9.6% |
| Change | −7.9 pts | −2.1 pts | −1.9 pts | −1.8 pts |
Vacancy in ZIP 21230 is close to the national rate: 10.7% of homes are empty, against 9.6%. The rate is higher than in the Baltimore area overall (7.2%). Since 2006–10, vacancy has fallen 7.9 points, a much bigger shift than nationally.
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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 1948 | 1971 | 1974 | 1974 |
| 2010–14 | 1949 | 1972 | 1975 | 1975 |
| 2015–19 | 1954 | 1973 | 1976 | 1977 |
| 2020–24 | 1960 | 1975 | 1978 | 1980 |
| Change | +12 | +4 | +4 | +6 |
The housing in ZIP 21230 is old by national standards: the median home dates to 1960, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1948 in 2006–10, a sign of steady new building. The newest homes are mostly in the northeast, the oldest in the center.
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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,197 | $1,179 | $1,249 | $965 |
| 2010–14 | $1,356 | $1,293 | $1,363 | $1,040 |
| 2015–19 | $1,553 | $1,477 | $1,576 | $1,213 |
| 2020–24 | $1,847 | $1,778 | $1,869 | $1,571 |
| Change | +$649 | +$599 | +$620 | +$606 |
The median renter in ZIP 21230 pays $1,847 a month for rent and utilities, above the national median of $1,571. Rent has climbed $649 a month since 2006–10, up 54%, a slower climb than the nation's. Rent takes 31.4% of the typical renter's income, just over the 30% mark often used to define affordable rent. The priciest rents are in the east; the most affordable are in the southwest.
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 21230
Bachelor's degrees in ZIP 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.5% | 35.6% | 36.3% | 28.4% |
| 2010–14 | 43.9% | 37.3% | 37.7% | 29.6% |
| 2015–19 | 53.3% | 40.8% | 40.5% | 32.1% |
| 2020–24 | 53.0% | 44.1% | 43.4% | 35.6% |
| Change | +11.5 pts | +8.5 pts | +7.1 pts | +7.2 pts |
ZIP 21230 is highly educated: just over half of adults 25 and older (53.0%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 11.5 points from 2006–10, in line with the national trend. College graduates are most concentrated in the northeast and least in the southwest.
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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 79.0% | 87.8% | 88.0% | 84.9% |
| 2010–14 | 82.9% | 89.5% | 89.1% | 86.1% |
| 2015–19 | 87.8% | 91.1% | 90.2% | 87.7% |
| 2020–24 | 82.2% | 92.1% | 90.9% | 89.3% |
| Change | +3.1 pts | +4.3 pts | +2.9 pts | +4.3 pts |
Just over one in six adults in ZIP 21230 never finished high school, well above the national share: only 82.2% have a diploma or equivalent, against 89.3% nationally. Since 2006–10, the share with a diploma has risen 3.1 points, as it has nationally. Only 16 of the 240 Maryland ZIP codes with 5,000+ people have a lower 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 21230
| Period | ZIP 21230 | Baltimore area | Maryland | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.5% | 6.6% | 6.5% | 8.1% |
| 2010–14 | 10.6% | 8.3% | 8.1% | 9.4% |
| 2015–19 | 5.6% | 5.2% | 5.1% | 5.6% |
| 2020–24 | 4.7% | 4.8% | 5.0% | 5.4% |
| Change | −3.8 pts | −1.8 pts | −1.5 pts | −2.7 pts |
Unemployment in ZIP 21230 is close to the national rate: 4.7% of the labor force, against 5.4%. Unemployment is down 3.8 points from 2006–10, as it has 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 21230 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 21230 | 2.24 | 34.7 | 9.7% | 48.4% | 10.7% | 1960 | $1,847 | 53.0% | 82.2% | 4.7% |
| ZIP 21201 | 1.64 | 34.6 | 13.0% | 90.2% | 9.5% | 1970 | $1,247 | 46.1% | 91.4% | 7.4% |
| ZIP 21223 | 2.33 | 38.6 | 23.6% | 68.5% | 30.4% | 1943 | $1,244 | 17.0% | 78.9% | 11.3% |
| ZIP 21202 | 1.62 | 36.6 | 10.9% | 77.7% | 13.9% | 1967 | $1,416 | 42.6% | 84.7% | 8.2% |
| ZIP 21231 | 1.84 | 33.4 | 7.1% | 65.9% | 15.0% | 1968 | $1,767 | 62.8% | 94.1% | 5.1% |
| ZIP 21287 | 2.41 | 31.9 | 13.0% | 35.3% | 6.7% | 1977 | $1,065 | 57.1% | 97.5% | 1.9% |
| ZIP 21217 | 1.98 | 39.7 | 14.6% | 69.3% | 20.8% | 1947 | $1,136 | 24.5% | 84.0% | 11.9% |
| ZIP 21225 | 2.70 | 34.9 | 19.8% | 50.4% | 11.8% | 1955 | $1,227 | 15.8% | 78.7% | 7.5% |
| ZIP 21205 | 2.54 | 36.5 | 29.6% | 63.2% | 19.2% | 1953 | $1,141 | 18.0% | 80.0% | 6.4% |
| ZIP 21227 | 2.67 | 38.0 | 11.5% | 35.2% | 6.5% | 1960 | $1,460 | 29.3% | 83.6% | 3.3% |
| ZIP 21216 | 2.46 | 37.0 | 20.3% | 49.1% | 19.8% | 1943 | $1,250 | 18.5% | 86.9% | 13.7% |
All figures 2020–24.
Zip codes with similar populations: 11102, NY · 15068, PA · 83501, ID · 36532, AL · 44122, OH · 45373, OH · 48239, MI · 50315, IA · 55024, MN · 77065, TX
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 21230. 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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