ZIP 21901 vs ZIP 21904
A side-by-side comparison of ZIP Code 21901 and ZIP Code 21904: population, income, housing, and more.
ZIP 21901 and ZIP 21904 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21901 has the higher population (19,585 vs 6,401 in ZIP 21904). ZIP 21901 has the higher median household income ($113,107 vs $84,375 in ZIP 21904). ZIP 21901 has the higher median home value ($342,800 vs $318,800 in ZIP 21904).
Population, income & housing
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| Population | 19,585 | 6,401 |
| Median age | 38.1 yrs | 40.9 yrs |
| Median household income | $113,107 | $84,375 |
| Median home value | $342,800 | $318,800 |
| Median gross rent | $1,418 | $1,245 |
| Housing units | 7,952 | 2,787 |
| Homeownership rate | 75.1% | 84.4% |
| Bachelor's degree or higher | 33.0% | 25.2% |
| Unemployment rate | 5.5% | 5.1% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| Population | 16,790 → 19,585 (+16.6%) | 7,075 → 6,401 (-9.5%) |
| Median household income | $80,542 → $113,107 (+40.4%) | $86,528 → $84,375 (-2.5%) |
| Median home value | $252,900 → $342,800 (+35.5%) | $245,700 → $318,800 (+29.8%) |
| Median gross rent | $1,139 → $1,418 (+24.5%) | $977 → $1,245 (+27.4%) |
ZIP 21901
16,79019,585
$80,542$113,107
$252,900$342,800
$1,139$1,418
ZIP 21904
7,0756,401
$86,528$84,375
$245,700$318,800
$977$1,245
Age & race/ethnicity
Age distribution (share)
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| Under 5 | 7.6% | 3.5% |
| 5 to 17 | 17.4% | 19.2% |
| 18 to 24 | 10.0% | 10.3% |
| 25 to 34 | 11.4% | 6.4% |
| 35 to 44 | 12.8% | 14.1% |
| 45 to 54 | 17.2% | 14.6% |
| 55 to 64 | 12.1% | 18.0% |
| 65 to 74 | 8.3% | 8.6% |
| 75 and over | 3.3% | 5.2% |
Race & ethnicity (share)
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| White (non-Hispanic) | 85.0% | 83.9% |
| Black or African American | 6.9% | 5.5% |
| American Indian & Alaska Native | 0.1% | 0.0% |
| Asian | 0.7% | 0.2% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.4% | 0.0% |
| Two or more races | 3.8% | 1.7% |
| Hispanic or Latino | 3.0% | 8.6% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| No high school diploma | 7.1% | 8.5% |
| High school graduate | 27.2% | 37.7% |
| Some college or associate's | 32.7% | 28.6% |
| Bachelor's degree | 19.0% | 11.9% |
| Graduate or professional degree | 14.0% | 13.4% |
Commute to work
How workers get to work (share)
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| Drove alone | 74.0% | 72.3% |
| Carpooled | 9.1% | 9.4% |
| Public transit | 0.1% | 0.3% |
| Walked | 1.2% | 6.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 13.0% | 9.7% |
| Other means | 2.6% | 2.2% |
Housing
Units in structure (share)
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| 1-unit, detached | 69.7% | 68.2% |
| 1-unit, attached | 11.1% | 3.8% |
| 2 to 4 units | 5.4% | 4.4% |
| 5 to 19 units | 7.5% | 4.3% |
| 20 or more units | 4.0% | 1.4% |
| Mobile home & other | 2.3% | 17.9% |
Poverty & households
| ZIP 21901 | ZIP 21904 | |
|---|---|---|
| Poverty rate | 10.1% | 7.5% |
| Average household size | 2.72 | 2.63 |
| Mean commute (minutes) | 28 | 30 |
| Median year structure built | 1998 | 1990 |