ZIP 21631 vs ZIP 21638
A side-by-side comparison of ZIP Code 21631 and ZIP Code 21638: population, income, housing, and more.
ZIP 21631 and ZIP 21638 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21638 has the higher population (5,068 vs 2,580 in ZIP 21631). ZIP 21638 has the higher median household income ($130,804 vs $69,095 in ZIP 21631). ZIP 21638 has the higher median home value ($491,000 vs $307,800 in ZIP 21631).
Population, income & housing
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| Population | 2,580 | 5,068 |
| Median age | 47.9 yrs | 45.8 yrs |
| Median household income | $69,095 | $130,804 |
| Median home value | $307,800 | $491,000 |
| Median gross rent | $1,528 | $1,630 |
| Housing units | 1,094 | 2,219 |
| Homeownership rate | 84.4% | 82.7% |
| Bachelor's degree or higher | 25.4% | 43.2% |
| Unemployment rate | 4.2% | 2.6% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| Population | 2,814 → 2,580 (-8.3%) | 5,130 → 5,068 (-1.2%) |
| Median household income | $69,934 → $69,095 (-1.2%) | $106,071 → $130,804 (+23.3%) |
| Median home value | $254,900 → $307,800 (+20.8%) | $428,600 → $491,000 (+14.6%) |
| Median gross rent | $1,054 → $1,528 (+45.0%) | $1,743 → $1,630 (-6.5%) |
ZIP 21631
2,8142,580
$69,934$69,095
$254,900$307,800
$1,054$1,528
ZIP 21638
5,1305,068
$106,071$130,804
$428,600$491,000
$1,743$1,630
Age & race/ethnicity
Age distribution (share)
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| Under 5 | 3.3% | 6.7% |
| 5 to 17 | 20.0% | 16.6% |
| 18 to 24 | 4.6% | 4.6% |
| 25 to 34 | 8.1% | 9.2% |
| 35 to 44 | 10.8% | 12.5% |
| 45 to 54 | 16.4% | 16.9% |
| 55 to 64 | 18.6% | 14.3% |
| 65 to 74 | 11.8% | 10.1% |
| 75 and over | 6.6% | 9.0% |
Race & ethnicity (share)
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| White (non-Hispanic) | 71.6% | 80.4% |
| Black or African American | 5.5% | 5.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.4% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 9.4% | 8.9% |
| Hispanic or Latino | 13.5% | 5.4% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| No high school diploma | 14.4% | 6.7% |
| High school graduate | 41.0% | 24.4% |
| Some college or associate's | 19.2% | 25.7% |
| Bachelor's degree | 16.5% | 27.3% |
| Graduate or professional degree | 9.0% | 15.9% |
Commute to work
How workers get to work (share)
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| Drove alone | 80.5% | 72.0% |
| Carpooled | 10.2% | 6.0% |
| Public transit | 0.7% | 1.7% |
| Walked | 0.0% | 0.4% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 8.6% | 19.9% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| 1-unit, detached | 85.8% | 75.5% |
| 1-unit, attached | 6.3% | 11.6% |
| 2 to 4 units | 0.5% | 3.8% |
| 5 to 19 units | 1.2% | 5.1% |
| 20 or more units | 0.2% | 1.3% |
| Mobile home & other | 5.9% | 2.7% |
Poverty & households
| ZIP 21631 | ZIP 21638 | |
|---|---|---|
| Poverty rate | 6.1% | 8.3% |
| Average household size | 2.64 | 2.65 |
| Mean commute (minutes) | 21 | 37 |
| Median year structure built | 1978 | 1992 |