ZIP 21738 vs ZIP 21740
A side-by-side comparison of ZIP Code 21738 and ZIP Code 21740: population, income, housing, and more.
ZIP 21738 and ZIP 21740 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21740 has the higher population (63,140 vs 3,668 in ZIP 21738). ZIP 21738 has the higher median household income ($230,429 vs $59,410 in ZIP 21740). ZIP 21738 has the higher median home value ($889,100 vs $241,600 in ZIP 21740).
Population, income & housing
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| Population | 3,668 | 63,140 |
| Median age | 47.0 yrs | 38.8 yrs |
| Median household income | $230,429 | $59,410 |
| Median home value | $889,100 | $241,600 |
| Median gross rent | — | $1,031 |
| Housing units | 1,166 | 27,002 |
| Homeownership rate | 98.6% | 55.2% |
| Bachelor's degree or higher | 75.9% | 20.1% |
| Unemployment rate | 2.4% | 6.1% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| Population | 3,827 → 3,668 (-4.2%) | 61,768 → 63,140 (+2.2%) |
| Median household income | $181,364 → $230,429 (+27.1%) | $48,372 → $59,410 (+22.8%) |
| Median home value | $708,100 → $889,100 (+25.6%) | $173,600 → $241,600 (+39.2%) |
| Median gross rent | — | $855 → $1,031 (+20.6%) |
ZIP 21738
3,8273,668
$181,364$230,429
$708,100$889,100
ZIP 21740
61,76863,140
$48,372$59,410
$173,600$241,600
$855$1,031
Age & race/ethnicity
Age distribution (share)
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| Under 5 | 4.1% | 5.9% |
| 5 to 17 | 21.1% | 16.4% |
| 18 to 24 | 9.4% | 8.6% |
| 25 to 34 | 3.4% | 13.9% |
| 35 to 44 | 8.7% | 13.7% |
| 45 to 54 | 19.4% | 13.3% |
| 55 to 64 | 11.8% | 12.0% |
| 65 to 74 | 12.1% | 9.4% |
| 75 and over | 10.0% | 6.9% |
Race & ethnicity (share)
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| White (non-Hispanic) | 87.3% | 64.3% |
| Black or African American | 2.2% | 17.8% |
| American Indian & Alaska Native | 0.0% | 0.1% |
| Asian | 5.9% | 1.8% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.1% |
| Some other race | 0.2% | 0.2% |
| Two or more races | 3.9% | 5.8% |
| Hispanic or Latino | 0.5% | 9.9% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| No high school diploma | 2.0% | 14.0% |
| High school graduate | 7.8% | 36.9% |
| Some college or associate's | 14.3% | 29.0% |
| Bachelor's degree | 33.8% | 12.1% |
| Graduate or professional degree | 42.0% | 8.0% |
Commute to work
How workers get to work (share)
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| Drove alone | 63.6% | 71.7% |
| Carpooled | 11.4% | 10.8% |
| Public transit | 0.0% | 2.0% |
| Walked | 0.0% | 1.7% |
| Bicycle | 0.0% | 0.6% |
| Worked from home | 23.9% | 10.1% |
| Other means | 1.1% | 2.9% |
Housing
Units in structure (share)
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| 1-unit, detached | 94.6% | 49.1% |
| 1-unit, attached | 2.4% | 22.8% |
| 2 to 4 units | 0.0% | 10.2% |
| 5 to 19 units | 0.0% | 11.3% |
| 20 or more units | 3.0% | 5.0% |
| Mobile home & other | 0.0% | 1.6% |
Poverty & households
| ZIP 21738 | ZIP 21740 | |
|---|---|---|
| Poverty rate | 3.0% | 17.2% |
| Average household size | 3.15 | 2.38 |
| Mean commute (minutes) | 33 | 28 |
| Median year structure built | 1991 | 1971 |