ZIP 21778 vs ZIP 21788
A side-by-side comparison of ZIP Code 21778 and ZIP Code 21788: population, income, housing, and more.
ZIP 21778 and ZIP 21788 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21788 has the higher population (11,919 vs 840 in ZIP 21778). ZIP 21778 has the higher median household income ($110,489 vs $93,717 in ZIP 21788). ZIP 21778 has the higher median home value ($415,700 vs $342,700 in ZIP 21788).
Population, income & housing
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| Population | 840 | 11,919 |
| Median age | 51.8 yrs | 46.5 yrs |
| Median household income | $110,489 | $93,717 |
| Median home value | $415,700 | $342,700 |
| Median gross rent | — | $1,015 |
| Housing units | 363 | 5,102 |
| Homeownership rate | 95.2% | 81.6% |
| Bachelor's degree or higher | 23.1% | 29.5% |
| Unemployment rate | 0.0% | 3.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| Population | 909 → 840 (-7.6%) | 11,910 → 11,919 (+0.1%) |
| Median household income | $74,375 → $110,489 (+48.6%) | $76,737 → $93,717 (+22.1%) |
| Median home value | $294,900 → $415,700 (+41.0%) | $256,900 → $342,700 (+33.4%) |
| Median gross rent | — | $1,109 → $1,015 (-8.5%) |
ZIP 21778
909840
$74,375$110,489
$294,900$415,700
ZIP 21788
11,91011,919
$76,737$93,717
$256,900$342,700
$1,109$1,015
Age & race/ethnicity
Age distribution (share)
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| Under 5 | 7.3% | 3.5% |
| 5 to 17 | 9.8% | 15.4% |
| 18 to 24 | 12.3% | 7.3% |
| 25 to 34 | 1.8% | 11.6% |
| 35 to 44 | 6.2% | 10.9% |
| 45 to 54 | 18.6% | 13.9% |
| 55 to 64 | 15.6% | 17.1% |
| 65 to 74 | 16.8% | 12.5% |
| 75 and over | 11.8% | 7.8% |
Race & ethnicity (share)
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| White (non-Hispanic) | 100.0% | 88.8% |
| Black or African American | 0.0% | 1.2% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.7% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.2% |
| Two or more races | 0.0% | 3.1% |
| Hispanic or Latino | 0.0% | 6.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| No high school diploma | 6.1% | 9.3% |
| High school graduate | 35.7% | 36.5% |
| Some college or associate's | 35.2% | 24.8% |
| Bachelor's degree | 5.4% | 17.6% |
| Graduate or professional degree | 17.7% | 11.9% |
Commute to work
How workers get to work (share)
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| Drove alone | 58.2% | 75.1% |
| Carpooled | 24.5% | 7.3% |
| Public transit | 0.0% | 0.1% |
| Walked | 0.0% | 1.7% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 17.3% | 14.4% |
| Other means | 0.0% | 1.4% |
Housing
Units in structure (share)
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| 1-unit, detached | 92.8% | 77.9% |
| 1-unit, attached | 6.3% | 7.5% |
| 2 to 4 units | 0.0% | 4.6% |
| 5 to 19 units | 0.0% | 6.6% |
| 20 or more units | 0.0% | 2.0% |
| Mobile home & other | 0.8% | 1.3% |
Poverty & households
| ZIP 21778 | ZIP 21788 | |
|---|---|---|
| Poverty rate | 0.0% | 9.4% |
| Average household size | 2.54 | 2.47 |
| Mean commute (minutes) | 30 | 28 |
| Median year structure built | 1970 | 1978 |