Population 3,597 · Census ACS 2020–24
Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.
Median age by neighborhoodHistory and comparison ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of ZIP 21663: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in ZIP 21663
Household size in ZIP 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 2.18 | 2.68 | 2.68 |
| 2010–14 | 2.12 | 2.73 | 2.73 |
| 2015–19 | 2.04 | 2.74 | 2.71 |
| 2020–24 | 2.17 | 2.68 | 2.65 |
| Change | −0.01 | +0.01 | −0.03 |
ZIP 21663 is a place of small households, averaging 2.17 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children.
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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 51.2 | 38.5 | 37.7 |
| 2010–14 | 56.8 | 39.3 | 38.6 |
| 2015–19 | 59.3 | 40.2 | 39.6 |
| 2020–24 | 56.1 | 40.6 | 40.1 |
| Change | +4.9 | +2.1 | +2.3 |
With a median age of 56.1, ZIP 21663 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 51.2 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.
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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 9.8% | 12.5% | 12.3% |
| 2010–14 | 6.7% | 12.6% | 12.3% |
| 2015–19 | 10.2% | 11.7% | 11.6% |
| 2020–24 | 4.3% | 11.7% | 11.6% |
| Change | −5.5 pts | −0.9 pts | −0.6 pts |
Single parents head only 4.3% of households in ZIP 21663, 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 21663
Renters in ZIP 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 23.9% | 31.0% | 33.3% |
| 2010–14 | 27.8% | 32.9% | 35.6% |
| 2015–19 | 21.0% | 33.1% | 36.0% |
| 2020–24 | 22.4% | 32.4% | 34.8% |
| Change | −1.5 pts | +1.4 pts | +1.5 pts |
ZIP 21663 is largely a place of homeowners: only 22.4% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 44.2% have no mortgage at all, 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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 28.5% | 9.0% | 11.4% |
| 2010–14 | 32.0% | 8.9% | 11.4% |
| 2015–19 | 24.3% | 8.9% | 11.1% |
| 2020–24 | 24.5% | 7.1% | 9.6% |
| Change | −4.0 pts | −1.9 pts | −1.8 pts |
Vacant homes make up 24.5% of the housing in ZIP 21663, 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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 1973 | 1974 | 1974 |
| 2010–14 | 1971 | 1975 | 1975 |
| 2015–19 | 1980 | 1976 | 1977 |
| 2020–24 | 1980 | 1978 | 1980 |
| Change | +6 | +4 | +6 |
Homes in ZIP 21663 are the same age as the nation's housing: the median home was built in 1980.
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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | $973 | $1,249 | $965 |
| 2010–14 | $1,209 | $1,363 | $1,040 |
| 2015–19 | $1,141 | $1,576 | $1,213 |
| 2020–24 | $1,107 | $1,869 | $1,571 |
| Change | +$134 | +$620 | +$606 |
A typical rental in ZIP 21663 costs $1,107 a month with utilities, well below the national median of $1,571. Rent takes 31.5% of the typical renter's income, 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 21663
Bachelor's degrees in ZIP 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 40.6% | 36.3% | 28.4% |
| 2010–14 | 41.3% | 37.7% | 29.6% |
| 2015–19 | 50.8% | 40.5% | 32.1% |
| 2020–24 | 52.7% | 43.4% | 35.6% |
| Change | +12.1 pts | +7.1 pts | +7.2 pts |
College graduates are unusually common in ZIP 21663: 52.7% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby.
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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 93.4% | 88.0% | 84.9% |
| 2010–14 | 91.9% | 89.1% | 86.1% |
| 2015–19 | 94.2% | 90.2% | 87.7% |
| 2020–24 | 89.7% | 90.9% | 89.3% |
| Change | −3.6 pts | +2.9 pts | +4.3 pts |
High school completion in ZIP 21663 is close to the national rate: 89.7% 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 21663
| Period | ZIP 21663 | Maryland | U.S. |
|---|---|---|---|
| 2006–10 | 11.9% | 6.5% | 8.1% |
| 2010–14 | 9.1% | 8.1% | 9.4% |
| 2015–19 | 3.9% | 5.1% | 5.6% |
| 2020–24 | 5.4% | 5.0% | 5.4% |
| Change | −6.5 pts | −1.5 pts | −2.7 pts |
At 5.4%, unemployment in ZIP 21663 is the same as the national rate. 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 21663 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 21663 | 2.17 | 56.1 | 4.3% | 22.4% | 24.5% | 1980 | $1,107 | 52.7% | 89.7% | 5.4% |
| ZIP 21653 | 2.15 | 54.8 | 4.0% | 9.1% | 28.2% | 1984 | $2,042 | 63.2% | 98.0% | 6.7% |
| ZIP 21612 | 2.18 | 68.4 | 2.4% | 0.0% | 42.0% | 1972 | $1,056 | 48.3% | 98.8% | 0.0% |
| ZIP 21647 | 1.96 | 60.2 | 9.8% | 3.2% | 28.7% | 1981 | $1,193 | 46.9% | 92.4% | 1.3% |
| ZIP 21676 | 1.96 | 60.2 | 9.8% | 3.2% | 28.7% | 1981 | $1,193 | 46.9% | 92.4% | 1.3% |
| ZIP 21624 | 1.96 | 60.2 | 9.8% | 3.2% | 28.7% | 1981 | $1,193 | 46.9% | 92.4% | 1.3% |
| ZIP 21662 | 2.15 | 54.8 | 4.0% | 9.1% | 28.2% | 1984 | $2,042 | 63.2% | 98.0% | 6.7% |
| ZIP 21652 | 2.18 | 68.4 | 2.4% | 0.0% | 42.0% | 1972 | $1,056 | 48.3% | 98.8% | 0.0% |
| ZIP 21665 | 1.96 | 59.9 | 9.2% | 3.8% | 28.9% | 1979 | $1,193 | 44.9% | 92.5% | 2.5% |
| ZIP 21654 | 1.89 | 65.2 | 8.3% | 13.7% | 30.8% | 1975 | $1,915 | 61.8% | 95.5% | 10.5% |
| ZIP 21671 | 1.99 | 57.1 | 3.5% | 9.4% | 31.0% | 1964 | $1,193 | 26.1% | 93.5% | 13.4% |
All figures 2020–24.
Zip codes with similar populations: 34737, FL · 71770, AR · 63347, MO · 62264, IL · 61559, IL · 78373, TX · 52227, IA · 79567, TX · 80654, CO · 49032, MI
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 21663. 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.
No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.