Population 1,416 · Census ACS 2020–24
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Population and households in ZIP 21530
Household size in ZIP 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 2.38 | 2.68 | 2.68 |
| 2010–14 | 2.36 | 2.73 | 2.73 |
| 2015–19 | 2.36 | 2.74 | 2.71 |
| 2020–24 | 2.28 | 2.68 | 2.65 |
| Change | −0.09 | +0.01 | −0.03 |
ZIP 21530 is a place of small households, averaging 2.28 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 2.38, 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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 50.0 | 38.5 | 37.7 |
| 2010–14 | 51.5 | 39.3 | 38.6 |
| 2015–19 | 43.7 | 40.2 | 39.6 |
| 2020–24 | 51.6 | 40.6 | 40.1 |
| Change | +1.6 | +2.1 | +2.3 |
With a median age of 51.6, ZIP 21530 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.
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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 6.4% | 12.5% | 12.3% |
| 2010–14 | 8.0% | 12.6% | 12.3% |
| 2015–19 | 6.4% | 11.7% | 11.6% |
| 2020–24 | 11.0% | 11.7% | 11.6% |
| Change | +4.6 pts | −0.9 pts | −0.6 pts |
Single parents head just over one in ten households in ZIP 21530 (11.0%), close to 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 21530
Renters in ZIP 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 16.0% | 31.0% | 33.3% |
| 2010–14 | 13.1% | 32.9% | 35.6% |
| 2015–19 | 12.4% | 33.1% | 36.0% |
| 2020–24 | 17.1% | 32.4% | 34.8% |
| Change | +1.0 pts | +1.4 pts | +1.5 pts |
ZIP 21530 is largely a place of homeowners: only 17.1% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 58.5% have no mortgage at all, well 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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 29.5% | 9.0% | 11.4% |
| 2010–14 | 17.9% | 8.9% | 11.4% |
| 2015–19 | 23.8% | 8.9% | 11.1% |
| 2020–24 | 30.0% | 7.1% | 9.6% |
| Change | +0.5 pts | −1.9 pts | −1.8 pts |
Vacant homes make up 30.0% of the housing in ZIP 21530, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.
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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 1965 | 1974 | 1974 |
| 2010–14 | 1968 | 1975 | 1975 |
| 2015–19 | 1970 | 1976 | 1977 |
| 2020–24 | 1974 | 1978 | 1980 |
| Change | +9 | +4 | +6 |
Housing in ZIP 21530 leans older: the median home dates to 1974, 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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | $726 | $1,249 | $965 |
| 2010–14 | $611 | $1,363 | $1,040 |
| 2015–19 | $1,104 | $1,576 | $1,213 |
| 2020–24 | $817 | $1,869 | $1,571 |
| Change | +$91 | +$620 | +$606 |
Rent in ZIP 21530 runs $817 a month at the median, utilities included, well below the U.S. median of $1,571. The typical renter here spends 20.9% of household income on rent, comfortably 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 21530
Bachelor's degrees in ZIP 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 11.9% | 36.3% | 28.4% |
| 2010–14 | 12.7% | 37.7% | 29.6% |
| 2015–19 | 14.6% | 40.5% | 32.1% |
| 2020–24 | 21.4% | 43.4% | 35.6% |
| Change | +9.5 pts | +7.1 pts | +7.2 pts |
Fewer adults in ZIP 21530 have a four-year degree than in the country as a whole: 21.4%, against 35.6% nationally.
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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 85.8% | 88.0% | 84.9% |
| 2010–14 | 90.2% | 89.1% | 86.1% |
| 2015–19 | 86.9% | 90.2% | 87.7% |
| 2020–24 | 92.4% | 90.9% | 89.3% |
| Change | +6.5 pts | +2.9 pts | +4.3 pts |
About nine in ten adults in ZIP 21530 have finished high school (92.4%), a bit above the national rate of 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 21530
| Period | ZIP 21530 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 7.1% | 6.5% | 8.1% |
| 2010–14 | 11.5% | 8.1% | 9.4% |
| 2015–19 | 3.5% | 5.1% | 5.6% |
| 2020–24 | 7.2% | 5.0% | 5.4% |
| Change | +0.1 pts | −1.5 pts | −2.7 pts |
Unemployment runs high in ZIP 21530: 7.2% 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 21530 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 21530 | 2.28 | 51.6 | 11.0% | 17.1% | 30.0% | 1974 | $817 | 21.4% | 92.4% | 7.2% |
| ZIP 17211 | 2.28 | 50.8 | 7.5% | 17.6% | 30.6% | 1979 | $861 | 12.7% | 88.9% | 5.3% |
| ZIP 21555 | 2.40 | 49.4 | 3.2% | 15.9% | 25.2% | 1974 | $743 | 15.5% | 92.6% | 6.5% |
| ZIP 21766 | 2.39 | 37.3 | 5.8% | 27.6% | 36.7% | 1993 | $736 | 28.5% | 95.3% | 10.0% |
| ZIP 21529 | 2.29 | 46.1 | 12.8% | 24.2% | 4.9% | 1969 | $993 | 15.0% | 90.1% | 2.8% |
| ZIP 15545 | 2.49 | 48.3 | 5.2% | 21.2% | 14.4% | 1962 | $804 | 11.6% | 91.3% | 4.0% |
| ZIP 26767 | 2.42 | 48.8 | 7.1% | 3.2% | 27.6% | 1974 | $747 | 25.3% | 97.1% | 0.0% |
| ZIP 21502 | 2.27 | 43.8 | 11.0% | 28.4% | 15.7% | 1957 | $804 | 19.7% | 89.6% | 4.6% |
| ZIP 21524 | 2.29 | 46.1 | 12.8% | 24.2% | 4.9% | 1969 | $993 | 15.0% | 90.1% | 2.8% |
| ZIP 26722 | 2.98 | 45.8 | 11.5% | 16.4% | 46.4% | 1980 | $1,078 | 25.5% | 95.8% | 0.0% |
| ZIP 25422 | 2.45 | 53.1 | 11.4% | 0.6% | 44.8% | 1991 | $782 | 14.8% | 82.1% | 3.7% |
All figures 2020–24.
Zip codes with similar populations: 71858, AR · 38730, MS · 41265, KY · 53806, WI · 54202, WI · 54424, WI · 58041, ND · 62218, IL · 62984, IL · 63546, MO
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 21530. 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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