ZIP 21531 vs ZIP 21538
A side-by-side comparison of ZIP Code 21531 and ZIP Code 21538: population, income, housing, and more.
ZIP 21531 and ZIP 21538 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21531 has the higher population (2,346 vs 605 in ZIP 21538). ZIP 21538 has the higher median household income ($83,913 vs $53,750 in ZIP 21531). Since 2019, ZIP 21538's population has grown faster (+47.6% vs +25.6%).
Population, income & housing
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| Population | 2,346 | 605 |
| Median age | 48.8 yrs | 37.5 yrs |
| Median household income | $53,750 | $83,913 |
| Median home value | $169,500 | — |
| Median gross rent | $672 | $760 |
| Housing units | 1,389 | 392 |
| Homeownership rate | 84.9% | 82.7% |
| Bachelor's degree or higher | 14.8% | 9.3% |
| Unemployment rate | 6.0% | 17.3% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| Population | 1,868 → 2,346 (+25.6%) | 410 → 605 (+47.6%) |
| Median household income | $41,938 → $53,750 (+28.2%) | $40,833 → $83,913 (+105.5%) |
| Median home value | $146,500 → $169,500 (+15.7%) | — |
| Median gross rent | $526 → $672 (+27.8%) | $683 → $760 (+11.3%) |
ZIP 21531
1,8682,346
$41,938$53,750
$146,500$169,500
$526$672
ZIP 21538
410605
$40,833$83,913
$683$760
Age & race/ethnicity
Age distribution (share)
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| Under 5 | 3.1% | 11.7% |
| 5 to 17 | 13.6% | 11.1% |
| 18 to 24 | 1.7% | 4.3% |
| 25 to 34 | 10.3% | 21.0% |
| 35 to 44 | 13.0% | 6.3% |
| 45 to 54 | 18.5% | 19.2% |
| 55 to 64 | 18.3% | 15.5% |
| 65 to 74 | 11.9% | 4.1% |
| 75 and over | 9.6% | 6.8% |
Race & ethnicity (share)
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| White (non-Hispanic) | 95.3% | 85.5% |
| Black or African American | 0.4% | 0.0% |
| American Indian & Alaska Native | 0.0% | 3.5% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 3.4% | 5.8% |
| Hispanic or Latino | 0.9% | 5.3% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| No high school diploma | 10.7% | 10.9% |
| High school graduate | 47.6% | 62.6% |
| Some college or associate's | 26.9% | 17.2% |
| Bachelor's degree | 9.3% | 1.8% |
| Graduate or professional degree | 5.5% | 7.5% |
Commute to work
How workers get to work (share)
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| Drove alone | 73.8% | 76.7% |
| Carpooled | 18.1% | 13.7% |
| Public transit | 0.0% | 7.2% |
| Walked | 0.1% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 8.1% | 2.4% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| 1-unit, detached | 81.7% | 80.4% |
| 1-unit, attached | 0.4% | 2.6% |
| 2 to 4 units | 0.5% | 6.1% |
| 5 to 19 units | 0.7% | 2.3% |
| 20 or more units | 1.9% | 0.0% |
| Mobile home & other | 14.8% | 8.7% |
Poverty & households
| ZIP 21531 | ZIP 21538 | |
|---|---|---|
| Poverty rate | 16.0% | 7.6% |
| Average household size | 2.13 | 1.98 |
| Mean commute (minutes) | 33 | 41 |
| Median year structure built | 1981 | 1961 |