ZIP 21797 vs ZIP 21804
A side-by-side comparison of ZIP Code 21797 and ZIP Code 21804: population, income, housing, and more.
ZIP 21797 and ZIP 21804 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21804 has the higher population (39,461 vs 8,772 in ZIP 21797). ZIP 21797 has the higher median household income ($185,435 vs $68,882 in ZIP 21804). ZIP 21797 has the higher median home value ($713,400 vs $230,200 in ZIP 21804).
Population, income & housing
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| Population | 8,772 | 39,461 |
| Median age | 44.0 yrs | 32.2 yrs |
| Median household income | $185,435 | $68,882 |
| Median home value | $713,400 | $230,200 |
| Median gross rent | $1,241 | $1,343 |
| Housing units | 3,006 | 16,736 |
| Homeownership rate | 89.9% | 49.3% |
| Bachelor's degree or higher | 48.6% | 28.1% |
| Unemployment rate | 4.3% | 7.9% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| Population | 8,873 → 8,772 (-1.1%) | 40,877 → 39,461 (-3.5%) |
| Median household income | $136,250 → $185,435 (+36.1%) | $52,638 → $68,882 (+30.9%) |
| Median home value | $581,000 → $713,400 (+22.8%) | $168,800 → $230,200 (+36.4%) |
| Median gross rent | $1,236 → $1,241 (+0.4%) | $1,133 → $1,343 (+18.5%) |
ZIP 21797
8,8738,772
$136,250$185,435
$581,000$713,400
$1,236$1,241
ZIP 21804
40,87739,461
$52,638$68,882
$168,800$230,200
$1,133$1,343
Age & race/ethnicity
Age distribution (share)
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| Under 5 | 6.2% | 6.1% |
| 5 to 17 | 16.6% | 15.7% |
| 18 to 24 | 8.7% | 16.6% |
| 25 to 34 | 8.4% | 15.1% |
| 35 to 44 | 10.9% | 10.6% |
| 45 to 54 | 16.6% | 10.7% |
| 55 to 64 | 18.1% | 10.5% |
| 65 to 74 | 9.4% | 9.0% |
| 75 and over | 5.1% | 5.8% |
Race & ethnicity (share)
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| White (non-Hispanic) | 80.7% | 54.2% |
| Black or African American | 2.5% | 29.8% |
| American Indian & Alaska Native | 0.1% | 0.1% |
| Asian | 6.4% | 3.5% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.3% | 0.0% |
| Two or more races | 5.8% | 5.1% |
| Hispanic or Latino | 4.2% | 7.3% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| No high school diploma | 6.6% | 11.3% |
| High school graduate | 20.4% | 33.2% |
| Some college or associate's | 24.4% | 27.4% |
| Bachelor's degree | 25.6% | 17.4% |
| Graduate or professional degree | 23.0% | 10.7% |
Commute to work
How workers get to work (share)
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| Drove alone | 67.5% | 79.3% |
| Carpooled | 6.6% | 12.5% |
| Public transit | 0.9% | 0.7% |
| Walked | 0.0% | 1.1% |
| Bicycle | 0.0% | 0.1% |
| Worked from home | 24.9% | 4.8% |
| Other means | 0.2% | 1.6% |
Housing
Units in structure (share)
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| 1-unit, detached | 90.3% | 58.8% |
| 1-unit, attached | 1.0% | 10.1% |
| 2 to 4 units | 4.0% | 3.8% |
| 5 to 19 units | 0.0% | 19.2% |
| 20 or more units | 0.0% | 6.8% |
| Mobile home & other | 4.7% | 1.2% |
Poverty & households
| ZIP 21797 | ZIP 21804 | |
|---|---|---|
| Poverty rate | 4.7% | 16.1% |
| Average household size | 2.98 | 2.50 |
| Mean commute (minutes) | 39 | 23 |
| Median year structure built | 1986 | 1980 |