ZIP 21540 vs ZIP 21550
A side-by-side comparison of ZIP Code 21540 and ZIP Code 21550: population, income, housing, and more.
ZIP 21540 and ZIP 21550 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21550 has the higher population (13,469 vs 93 in ZIP 21540). ZIP 21540 has the higher median household income ($73,125 vs $65,302 in ZIP 21550). ZIP 21550 has the higher median home value ($210,300 vs $50,000 in ZIP 21540).
Population, income & housing
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| Population | 93 | 13,469 |
| Median age | 44.3 yrs | 48.5 yrs |
| Median household income | $73,125 | $65,302 |
| Median home value | $50,000 | $210,300 |
| Median gross rent | $638 | $724 |
| Housing units | 55 | 8,395 |
| Homeownership rate | 81.1% | 77.8% |
| Bachelor's degree or higher | 14.3% | 25.7% |
| Unemployment rate | 3.6% | 5.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| Population | 102 → 93 (-8.8%) | 14,077 → 13,469 (-4.3%) |
| Median household income | $38,409 → $73,125 (+90.4%) | $50,737 → $65,302 (+28.7%) |
| Median home value | $25,000 → $50,000 (+100.0%) | $170,400 → $210,300 (+23.4%) |
| Median gross rent | $581 → $638 (+9.8%) | $628 → $724 (+15.3%) |
ZIP 21540
10293
$38,409$73,125
$25,000$50,000
$581$638
ZIP 21550
14,07713,469
$50,737$65,302
$170,400$210,300
$628$724
Age & race/ethnicity
Age distribution (share)
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| Under 5 | 1.1% | 4.9% |
| 5 to 17 | 25.8% | 12.9% |
| 18 to 24 | 5.4% | 6.1% |
| 25 to 34 | 8.6% | 12.5% |
| 35 to 44 | 16.1% | 10.3% |
| 45 to 54 | 30.1% | 12.3% |
| 55 to 64 | 8.6% | 15.8% |
| 65 to 74 | 2.2% | 14.4% |
| 75 and over | 2.2% | 10.7% |
Race & ethnicity (share)
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| White (non-Hispanic) | 97.8% | 95.5% |
| Black or African American | 1.1% | 0.4% |
| American Indian & Alaska Native | 0.0% | 0.2% |
| Asian | 0.0% | 0.4% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.7% |
| Two or more races | 0.0% | 1.5% |
| Hispanic or Latino | 1.1% | 1.3% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| No high school diploma | 7.9% | 10.0% |
| High school graduate | 66.7% | 40.0% |
| Some college or associate's | 11.1% | 24.4% |
| Bachelor's degree | 11.1% | 14.7% |
| Graduate or professional degree | 3.2% | 10.9% |
Commute to work
How workers get to work (share)
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| Drove alone | 94.3% | 77.8% |
| Carpooled | 0.0% | 6.9% |
| Public transit | 0.0% | 0.6% |
| Walked | 5.7% | 1.4% |
| Bicycle | 0.0% | 0.6% |
| Worked from home | 0.0% | 12.4% |
| Other means | 0.0% | 0.3% |
Housing
Units in structure (share)
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| 1-unit, detached | 61.8% | 79.2% |
| 1-unit, attached | 36.4% | 3.8% |
| 2 to 4 units | 1.8% | 1.8% |
| 5 to 19 units | 0.0% | 2.7% |
| 20 or more units | 0.0% | 3.8% |
| Mobile home & other | 0.0% | 8.5% |
Poverty & households
| ZIP 21540 | ZIP 21550 | |
|---|---|---|
| Poverty rate | 5.4% | 11.3% |
| Average household size | 2.43 | 2.22 |
| Mean commute (minutes) | 26 | 20 |
| Median year structure built | 1938 | 1979 |