ZIP 21648 vs ZIP 21657
A side-by-side comparison of ZIP Code 21648 and ZIP Code 21657: population, income, housing, and more.
ZIP 21648 and ZIP 21657 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21657 has the higher population (1,533 vs 104 in ZIP 21648). ZIP 21657 has the higher median home value ($354,400 vs $171,200 in ZIP 21648). Since 2019, ZIP 21657's population has grown faster (+68.5% vs -40.6%).
Population, income & housing
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| Population | 104 | 1,533 |
| Median age | 61.7 yrs | 49.2 yrs |
| Median household income | — | $106,588 |
| Median home value | $171,200 | $354,400 |
| Median gross rent | — | $1,750 |
| Housing units | 58 | 558 |
| Homeownership rate | 97.5% | 85.0% |
| Bachelor's degree or higher | 15.2% | 21.7% |
| Unemployment rate | 0.0% | 1.7% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| Population | 175 → 104 (-40.6%) | 910 → 1,533 (+68.5%) |
| Median household income | $81,083 → $137,500 (+69.6%) | $111,250 → $106,588 (-4.2%) |
| Median home value | $123,600 → $171,200 (+38.5%) | $297,600 → $354,400 (+19.1%) |
| Median gross rent | — | $1,775 → $1,750 (-1.4%) |
ZIP 21648
175104
$81,083$137,500
$123,600$171,200
ZIP 21657
9101,533
$111,250$106,588
$297,600$354,400
$1,775$1,750
Age & race/ethnicity
Age distribution (share)
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| Under 5 | 1.9% | 4.9% |
| 5 to 17 | 5.8% | 16.9% |
| 18 to 24 | 16.3% | 7.8% |
| 25 to 34 | 1.0% | 8.3% |
| 35 to 44 | 0.0% | 11.1% |
| 45 to 54 | 17.3% | 8.9% |
| 55 to 64 | 29.8% | 11.2% |
| 65 to 74 | 27.9% | 25.4% |
| 75 and over | 0.0% | 5.5% |
Race & ethnicity (share)
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| White (non-Hispanic) | 84.6% | 72.5% |
| Black or African American | 1.0% | 9.0% |
| American Indian & Alaska Native | 0.0% | 0.2% |
| Asian | 11.5% | 0.7% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 0.0% | 5.1% |
| Hispanic or Latino | 2.9% | 12.6% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| No high school diploma | 0.0% | 23.2% |
| High school graduate | 21.5% | 25.2% |
| Some college or associate's | 63.3% | 29.9% |
| Bachelor's degree | 8.9% | 14.8% |
| Graduate or professional degree | 6.3% | 6.9% |
Commute to work
How workers get to work (share)
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| Drove alone | 100.0% | 81.8% |
| Carpooled | 0.0% | 10.6% |
| Public transit | 0.0% | 0.8% |
| Walked | 0.0% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 0.0% | 6.8% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| 1-unit, detached | 100.0% | 95.0% |
| 1-unit, attached | 0.0% | 0.0% |
| 2 to 4 units | 0.0% | 1.8% |
| 5 to 19 units | 0.0% | 0.9% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 0.0% | 2.3% |
Poverty & households
| ZIP 21648 | ZIP 21657 | |
|---|---|---|
| Poverty rate | 6.1% | 7.3% |
| Average household size | 2.48 | 2.83 |
| Mean commute (minutes) | 23 | 38 |
| Median year structure built | 1947 | 1975 |