ZIP 21766 vs ZIP 21770
A side-by-side comparison of ZIP Code 21766 and ZIP Code 21770: population, income, housing, and more.
ZIP 21766 and ZIP 21770 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21770 has the higher population (7,815 vs 509 in ZIP 21766). ZIP 21770 has the higher median household income ($184,464 vs $54,821 in ZIP 21766). ZIP 21770 has the higher median home value ($599,700 vs $192,400 in ZIP 21766).
Population, income & housing
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| Population | 509 | 7,815 |
| Median age | 59.6 yrs | 41.2 yrs |
| Median household income | $54,821 | $184,464 |
| Median home value | $192,400 | $599,700 |
| Median gross rent | $780 | — |
| Housing units | 503 | 2,448 |
| Homeownership rate | 77.1% | 98.0% |
| Bachelor's degree or higher | 5.9% | 54.5% |
| Unemployment rate | 0.0% | 2.2% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| Population | 483 → 509 (+5.4%) | 5,513 → 7,815 (+41.8%) |
| Median household income | $32,366 → $54,821 (+69.4%) | $138,750 → $184,464 (+32.9%) |
| Median home value | $214,800 → $192,400 (-10.4%) | $419,100 → $599,700 (+43.1%) |
| Median gross rent | $635 → $780 (+22.8%) | $1,521 → $2,065 (+35.8%) |
ZIP 21766
483509
$32,366$54,821
$214,800$192,400
$635$780
ZIP 21770
5,5137,815
$138,750$184,464
$419,100$599,700
$1,521$2,065
Age & race/ethnicity
Age distribution (share)
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| Under 5 | 0.0% | 4.3% |
| 5 to 17 | 1.4% | 17.6% |
| 18 to 24 | 6.1% | 6.3% |
| 25 to 34 | 14.9% | 11.1% |
| 35 to 44 | 9.8% | 17.5% |
| 45 to 54 | 8.6% | 11.1% |
| 55 to 64 | 28.3% | 13.2% |
| 65 to 74 | 25.5% | 14.2% |
| 75 and over | 5.3% | 4.7% |
Race & ethnicity (share)
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| White (non-Hispanic) | 96.7% | 76.0% |
| Black or African American | 0.0% | 5.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 12.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 3.3% | 3.1% |
| Hispanic or Latino | 0.0% | 3.9% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| No high school diploma | 7.0% | 1.5% |
| High school graduate | 59.4% | 17.6% |
| Some college or associate's | 27.6% | 26.4% |
| Bachelor's degree | 2.1% | 30.4% |
| Graduate or professional degree | 3.8% | 24.1% |
Commute to work
How workers get to work (share)
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| Drove alone | 60.6% | 64.6% |
| Carpooled | 39.4% | 9.6% |
| Public transit | 0.0% | 0.0% |
| Walked | 0.0% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 0.0% | 25.7% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| 1-unit, detached | 58.4% | 97.1% |
| 1-unit, attached | 0.0% | 2.9% |
| 2 to 4 units | 0.0% | 0.0% |
| 5 to 19 units | 0.0% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 41.6% | 0.0% |
Poverty & households
| ZIP 21766 | ZIP 21770 | |
|---|---|---|
| Poverty rate | 5.1% | 1.4% |
| Average household size | 1.82 | 3.26 |
| Mean commute (minutes) | 31 | 37 |
| Median year structure built | 1992 | 1988 |