ZIP 21128 vs ZIP 21131
A side-by-side comparison of ZIP Code 21128 and ZIP Code 21131: population, income, housing, and more.
ZIP 21128 and ZIP 21131 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21128 has the higher population (14,954 vs 7,050 in ZIP 21131). ZIP 21131 has the higher median household income ($187,250 vs $123,191 in ZIP 21128). ZIP 21131 has the higher median home value ($662,900 vs $424,200 in ZIP 21128).
Population, income & housing
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| Population | 14,954 | 7,050 |
| Median age | 40.6 yrs | 48.5 yrs |
| Median household income | $123,191 | $187,250 |
| Median home value | $424,200 | $662,900 |
| Median gross rent | $1,644 | — |
| Housing units | 5,811 | 2,622 |
| Homeownership rate | 83.6% | 98.9% |
| Bachelor's degree or higher | 54.1% | 71.7% |
| Unemployment rate | 2.6% | 4.3% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| Population | 13,985 → 14,954 (+6.9%) | 7,282 → 7,050 (-3.2%) |
| Median household income | $100,417 → $123,191 (+22.7%) | $144,570 → $187,250 (+29.5%) |
| Median home value | $328,300 → $424,200 (+29.2%) | $552,900 → $662,900 (+19.9%) |
| Median gross rent | $1,422 → $1,644 (+15.6%) | $1,840 → $2,100 (+14.1%) |
ZIP 21128
13,98514,954
$100,417$123,191
$328,300$424,200
$1,422$1,644
ZIP 21131
7,2827,050
$144,570$187,250
$552,900$662,900
$1,840$2,100
Age & race/ethnicity
Age distribution (share)
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| Under 5 | 4.2% | 4.8% |
| 5 to 17 | 17.8% | 17.4% |
| 18 to 24 | 7.3% | 4.9% |
| 25 to 34 | 13.0% | 5.8% |
| 35 to 44 | 12.8% | 13.7% |
| 45 to 54 | 14.0% | 14.0% |
| 55 to 64 | 13.6% | 17.1% |
| 65 to 74 | 10.3% | 13.6% |
| 75 and over | 7.0% | 8.7% |
Race & ethnicity (share)
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| White (non-Hispanic) | 66.1% | 92.9% |
| Black or African American | 9.0% | 0.2% |
| American Indian & Alaska Native | 0.0% | 0.1% |
| Asian | 15.7% | 1.6% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.2% | 0.8% |
| Two or more races | 2.7% | 1.9% |
| Hispanic or Latino | 6.3% | 2.5% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| No high school diploma | 6.1% | 1.7% |
| High school graduate | 19.6% | 15.5% |
| Some college or associate's | 20.2% | 11.0% |
| Bachelor's degree | 32.6% | 37.5% |
| Graduate or professional degree | 21.6% | 34.3% |
Commute to work
How workers get to work (share)
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| Drove alone | 71.8% | 68.5% |
| Carpooled | 6.8% | 10.7% |
| Public transit | 3.5% | 0.0% |
| Walked | 2.5% | 1.8% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 13.0% | 19.0% |
| Other means | 2.4% | 0.0% |
Housing
Units in structure (share)
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| 1-unit, detached | 56.6% | 98.7% |
| 1-unit, attached | 18.4% | 1.3% |
| 2 to 4 units | 1.0% | 0.0% |
| 5 to 19 units | 18.5% | 0.0% |
| 20 or more units | 5.5% | 0.0% |
| Mobile home & other | 0.0% | 0.0% |
Poverty & households
| ZIP 21128 | ZIP 21131 | |
|---|---|---|
| Poverty rate | 4.1% | 3.4% |
| Average household size | 2.75 | 2.86 |
| Mean commute (minutes) | 32 | 30 |
| Median year structure built | 2000 | 1977 |