ZIP 21521 vs ZIP 21530
A side-by-side comparison of ZIP Code 21521 and ZIP Code 21530: population, income, housing, and more.
ZIP 21521 and ZIP 21530 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21521 has the higher population (1,521 vs 1,481 in ZIP 21530). ZIP 21521 has the higher median household income ($69,758 vs $63,904 in ZIP 21530). ZIP 21530 has the higher median home value ($194,100 vs $130,900 in ZIP 21521).
Population, income & housing
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| Population | 1,521 | 1,481 |
| Median age | 54.2 yrs | 54.2 yrs |
| Median household income | $69,758 | $63,904 |
| Median home value | $130,900 | $194,100 |
| Median gross rent | $917 | $880 |
| Housing units | 747 | 896 |
| Homeownership rate | 93.6% | 81.2% |
| Bachelor's degree or higher | 10.1% | 22.4% |
| Unemployment rate | 12.6% | 2.7% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| Population | 1,102 → 1,521 (+38.0%) | 1,859 → 1,481 (-20.3%) |
| Median household income | $41,193 → $69,758 (+69.3%) | $44,135 → $63,904 (+44.8%) |
| Median home value | $95,100 → $130,900 (+37.6%) | $164,100 → $194,100 (+18.3%) |
| Median gross rent | $741 → $917 (+23.8%) | $1,137 → $880 (-22.6%) |
ZIP 21521
1,1021,521
$41,193$69,758
$95,100$130,900
$741$917
ZIP 21530
1,8591,481
$44,135$63,904
$164,100$194,100
$1,137$880
Age & race/ethnicity
Age distribution (share)
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| Under 5 | 4.3% | 4.9% |
| 5 to 17 | 10.9% | 14.0% |
| 18 to 24 | 5.9% | 3.5% |
| 25 to 34 | 7.3% | 6.3% |
| 35 to 44 | 7.4% | 13.0% |
| 45 to 54 | 17.4% | 11.1% |
| 55 to 64 | 20.6% | 21.0% |
| 65 to 74 | 11.0% | 21.5% |
| 75 and over | 15.2% | 4.7% |
Race & ethnicity (share)
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| White (non-Hispanic) | 99.0% | 97.2% |
| Black or African American | 0.0% | 0.7% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.4% | 0.0% |
| Two or more races | 0.3% | 0.8% |
| Hispanic or Latino | 0.3% | 1.3% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| No high school diploma | 10.7% | 12.6% |
| High school graduate | 44.0% | 38.2% |
| Some college or associate's | 35.2% | 26.8% |
| Bachelor's degree | 1.8% | 6.3% |
| Graduate or professional degree | 8.3% | 16.1% |
Commute to work
How workers get to work (share)
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| Drove alone | 87.7% | 68.2% |
| Carpooled | 3.8% | 5.2% |
| Public transit | 0.0% | 6.1% |
| Walked | 0.2% | 1.7% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 3.8% | 18.9% |
| Other means | 4.5% | 0.0% |
Housing
Units in structure (share)
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| 1-unit, detached | 85.9% | 82.1% |
| 1-unit, attached | 4.8% | 0.0% |
| 2 to 4 units | 1.5% | 0.0% |
| 5 to 19 units | 1.6% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 6.2% | 17.9% |
Poverty & households
| ZIP 21521 | ZIP 21530 | |
|---|---|---|
| Poverty rate | 11.4% | 6.5% |
| Average household size | 2.42 | 2.18 |
| Mean commute (minutes) | 29 | 26 |
| Median year structure built | 1965 | 1970 |