ZIP 21912 vs ZIP 21920
A side-by-side comparison of ZIP Code 21912 and ZIP Code 21920: population, income, housing, and more.
ZIP 21912 and ZIP 21920 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21912 has the higher population (1,430 vs 1,153 in ZIP 21920). ZIP 21920 has the higher median household income ($119,156 vs $65,074 in ZIP 21912). ZIP 21912 has the higher median home value ($385,600 vs $338,600 in ZIP 21920).
Population, income & housing
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| Population | 1,430 | 1,153 |
| Median age | 59.0 yrs | 42.2 yrs |
| Median household income | $65,074 | $119,156 |
| Median home value | $385,600 | $338,600 |
| Housing units | 677 | 352 |
| Homeownership rate | 90.3% | 79.0% |
| Bachelor's degree or higher | 24.0% | 21.7% |
| Unemployment rate | 2.2% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| Population | 1,139 → 1,430 (+25.5%) | 491 → 1,153 (+134.8%) |
| Median household income | $54,464 → $65,074 (+19.5%) | $34,722 → $119,156 (+243.2%) |
| Median home value | $395,500 → $385,600 (-2.5%) | $319,000 → $338,600 (+6.1%) |
| Median gross rent | $845 → $772 (-8.6%) | — |
ZIP 21912
1,1391,430
$54,464$65,074
$395,500$385,600
$845$772
ZIP 21920
4911,153
$34,722$119,156
$319,000$338,600
Age & race/ethnicity
Age distribution (share)
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| Under 5 | 1.3% | 0.0% |
| 5 to 17 | 9.9% | 22.3% |
| 18 to 24 | 5.2% | 10.1% |
| 25 to 34 | 2.2% | 14.7% |
| 35 to 44 | 9.7% | 5.2% |
| 45 to 54 | 11.9% | 19.9% |
| 55 to 64 | 25.0% | 8.3% |
| 65 to 74 | 21.0% | 17.7% |
| 75 and over | 13.8% | 1.8% |
Race & ethnicity (share)
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| White (non-Hispanic) | 97.1% | 77.1% |
| Black or African American | 2.0% | 0.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 0.9% | 8.7% |
| Hispanic or Latino | 0.0% | 14.2% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| No high school diploma | 1.9% | 26.7% |
| High school graduate | 35.8% | 32.9% |
| Some college or associate's | 38.3% | 18.7% |
| Bachelor's degree | 9.0% | 15.9% |
| Graduate or professional degree | 15.0% | 5.8% |
Commute to work
How workers get to work (share)
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| Drove alone | 80.2% | 73.1% |
| Carpooled | 4.5% | 0.0% |
| Public transit | 0.0% | 0.0% |
| Walked | 2.7% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 12.6% | 26.9% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| 1-unit, detached | 96.2% | 84.4% |
| 1-unit, attached | 0.0% | 15.6% |
| 2 to 4 units | 0.0% | 0.0% |
| 5 to 19 units | 0.0% | 0.0% |
| 20 or more units | 2.1% | 0.0% |
| Mobile home & other | 1.8% | 0.0% |
Poverty & households
| ZIP 21912 | ZIP 21920 | |
|---|---|---|
| Poverty rate | 3.6% | 9.5% |
| Average household size | 2.11 | 3.28 |
| Mean commute (minutes) | 38 | 41 |
| Median year structure built | 1990 | 1983 |