ZIP 21904 vs ZIP 21912
A side-by-side comparison of ZIP Code 21904 and ZIP Code 21912: population, income, housing, and more.
ZIP 21904 and ZIP 21912 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21904 has the higher population (6,401 vs 1,430 in ZIP 21912). ZIP 21904 has the higher median household income ($84,375 vs $65,074 in ZIP 21912). ZIP 21912 has the higher median home value ($385,600 vs $318,800 in ZIP 21904).
Population, income & housing
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| Population | 6,401 | 1,430 |
| Median age | 40.9 yrs | 59.0 yrs |
| Median household income | $84,375 | $65,074 |
| Median home value | $318,800 | $385,600 |
| Median gross rent | $1,245 | — |
| Housing units | 2,787 | 677 |
| Homeownership rate | 84.4% | 90.3% |
| Bachelor's degree or higher | 25.2% | 24.0% |
| Unemployment rate | 5.1% | 2.2% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| Population | 7,075 → 6,401 (-9.5%) | 1,139 → 1,430 (+25.5%) |
| Median household income | $86,528 → $84,375 (-2.5%) | $54,464 → $65,074 (+19.5%) |
| Median home value | $245,700 → $318,800 (+29.8%) | $395,500 → $385,600 (-2.5%) |
| Median gross rent | $977 → $1,245 (+27.4%) | $845 → $772 (-8.6%) |
ZIP 21904
7,0756,401
$86,528$84,375
$245,700$318,800
$977$1,245
ZIP 21912
1,1391,430
$54,464$65,074
$395,500$385,600
$845$772
Age & race/ethnicity
Age distribution (share)
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| Under 5 | 3.5% | 1.3% |
| 5 to 17 | 19.2% | 9.9% |
| 18 to 24 | 10.3% | 5.2% |
| 25 to 34 | 6.4% | 2.2% |
| 35 to 44 | 14.1% | 9.7% |
| 45 to 54 | 14.6% | 11.9% |
| 55 to 64 | 18.0% | 25.0% |
| 65 to 74 | 8.6% | 21.0% |
| 75 and over | 5.2% | 13.8% |
Race & ethnicity (share)
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| White (non-Hispanic) | 83.9% | 97.1% |
| Black or African American | 5.5% | 2.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.2% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 1.7% | 0.9% |
| Hispanic or Latino | 8.6% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| No high school diploma | 8.5% | 1.9% |
| High school graduate | 37.7% | 35.8% |
| Some college or associate's | 28.6% | 38.3% |
| Bachelor's degree | 11.9% | 9.0% |
| Graduate or professional degree | 13.4% | 15.0% |
Commute to work
How workers get to work (share)
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| Drove alone | 72.3% | 80.2% |
| Carpooled | 9.4% | 4.5% |
| Public transit | 0.3% | 0.0% |
| Walked | 6.0% | 2.7% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 9.7% | 12.6% |
| Other means | 2.2% | 0.0% |
Housing
Units in structure (share)
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| 1-unit, detached | 68.2% | 96.2% |
| 1-unit, attached | 3.8% | 0.0% |
| 2 to 4 units | 4.4% | 0.0% |
| 5 to 19 units | 4.3% | 0.0% |
| 20 or more units | 1.4% | 2.1% |
| Mobile home & other | 17.9% | 1.8% |
Poverty & households
| ZIP 21904 | ZIP 21912 | |
|---|---|---|
| Poverty rate | 7.5% | 3.6% |
| Average household size | 2.63 | 2.11 |
| Mean commute (minutes) | 30 | 38 |
| Median year structure built | 1990 | 1990 |