ZIP 21156 vs ZIP 21157
A side-by-side comparison of ZIP Code 21156 and ZIP Code 21157: population, income, housing, and more.
ZIP 21156 and ZIP 21157 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21157 has the higher population (40,191 vs 297 in ZIP 21156). ZIP 21156 has the higher median household income ($124,648 vs $102,835 in ZIP 21157). ZIP 21156 has the higher median home value ($486,500 vs $394,100 in ZIP 21157).
Population, income & housing
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| Population | 297 | 40,191 |
| Median age | 34.2 yrs | 41.8 yrs |
| Median household income | $124,648 | $102,835 |
| Median home value | $486,500 | $394,100 |
| Median gross rent | — | $1,236 |
| Housing units | 83 | 15,466 |
| Homeownership rate | 100.0% | 75.9% |
| Bachelor's degree or higher | 65.5% | 37.2% |
| Unemployment rate | 0.0% | 3.1% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| Population | 316 → 297 (-6.0%) | 37,749 → 40,191 (+6.5%) |
| Median household income | $112,222 → $124,648 (+11.1%) | $84,294 → $102,835 (+22.0%) |
| Median home value | $339,000 → $486,500 (+43.5%) | $319,200 → $394,100 (+23.5%) |
| Median gross rent | — | $1,024 → $1,236 (+20.7%) |
ZIP 21156
316297
$112,222$124,648
$339,000$486,500
ZIP 21157
37,74940,191
$84,294$102,835
$319,200$394,100
$1,024$1,236
Age & race/ethnicity
Age distribution (share)
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| Under 5 | 32.0% | 4.3% |
| 5 to 17 | 4.4% | 16.0% |
| 18 to 24 | 5.1% | 11.4% |
| 25 to 34 | 17.5% | 10.4% |
| 35 to 44 | 19.2% | 12.1% |
| 45 to 54 | 0.0% | 13.5% |
| 55 to 64 | 18.5% | 13.8% |
| 65 to 74 | 3.4% | 10.6% |
| 75 and over | 0.0% | 8.0% |
Race & ethnicity (share)
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| White (non-Hispanic) | 89.6% | 86.0% |
| Black or African American | 0.0% | 3.7% |
| American Indian & Alaska Native | 0.0% | 0.1% |
| Asian | 0.0% | 0.9% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.7% |
| Two or more races | 10.4% | 2.4% |
| Hispanic or Latino | 0.0% | 6.2% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| No high school diploma | 0.0% | 7.4% |
| High school graduate | 9.2% | 28.8% |
| Some college or associate's | 25.3% | 26.6% |
| Bachelor's degree | 35.6% | 22.8% |
| Graduate or professional degree | 29.9% | 14.4% |
Commute to work
How workers get to work (share)
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| Drove alone | 41.8% | 74.9% |
| Carpooled | 0.0% | 6.6% |
| Public transit | 0.0% | 0.4% |
| Walked | 0.0% | 2.1% |
| Bicycle | 0.0% | 0.3% |
| Worked from home | 58.2% | 15.2% |
| Other means | 0.0% | 0.6% |
Housing
Units in structure (share)
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| 1-unit, detached | 100.0% | 71.5% |
| 1-unit, attached | 0.0% | 10.3% |
| 2 to 4 units | 0.0% | 5.1% |
| 5 to 19 units | 0.0% | 8.9% |
| 20 or more units | 0.0% | 4.0% |
| Mobile home & other | 0.0% | 0.2% |
Poverty & households
| ZIP 21156 | ZIP 21157 | |
|---|---|---|
| Poverty rate | 0.0% | 7.5% |
| Average household size | 3.58 | 2.60 |
| Mean commute (minutes) | — | 31 |
| Median year structure built | 1957 | 1978 |