ZIP 21645 vs ZIP 21647
A side-by-side comparison of ZIP Code 21645 and ZIP Code 21647: population, income, housing, and more.
ZIP 21645 and ZIP 21647 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21645 has the higher population (872 vs 412 in ZIP 21647). ZIP 21647 has the higher median home value ($493,800 vs $298,700 in ZIP 21645). Since 2019, ZIP 21647's population has grown faster (+43.1% vs -30.8%).
Population, income & housing
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| Population | 872 | 412 |
| Median age | 59.5 yrs | 43.6 yrs |
| Median household income | — | $111,111 |
| Median home value | $298,700 | $493,800 |
| Median gross rent | $1,180 | — |
| Housing units | 645 | 177 |
| Homeownership rate | 74.8% | 96.5% |
| Bachelor's degree or higher | 35.4% | 43.4% |
| Unemployment rate | 6.9% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| Population | 1,261 → 872 (-30.8%) | 288 → 412 (+43.1%) |
| Median household income | $83,668 → $123,500 (+47.6%) | $77,361 → $111,111 (+43.6%) |
| Median home value | $335,300 → $298,700 (-10.9%) | $401,800 → $493,800 (+22.9%) |
| Median gross rent | $1,179 → $1,180 (+0.1%) | — |
ZIP 21645
1,261872
$83,668$123,500
$335,300$298,700
$1,179$1,180
ZIP 21647
288412
$77,361$111,111
$401,800$493,800
Age & race/ethnicity
Age distribution (share)
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| Under 5 | 0.0% | 11.4% |
| 5 to 17 | 5.2% | 17.0% |
| 18 to 24 | 0.0% | 0.0% |
| 25 to 34 | 13.4% | 10.9% |
| 35 to 44 | 2.5% | 11.7% |
| 45 to 54 | 14.8% | 10.7% |
| 55 to 64 | 38.4% | 19.2% |
| 65 to 74 | 18.8% | 17.7% |
| 75 and over | 6.9% | 1.5% |
Race & ethnicity (share)
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| White (non-Hispanic) | 95.6% | 100.0% |
| Black or African American | 4.4% | 0.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 0.0% | 0.0% |
| Hispanic or Latino | 0.0% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| No high school diploma | 1.0% | 4.4% |
| High school graduate | 47.2% | 17.6% |
| Some college or associate's | 16.4% | 34.6% |
| Bachelor's degree | 18.6% | 33.6% |
| Graduate or professional degree | 16.8% | 9.8% |
Commute to work
How workers get to work (share)
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| Drove alone | 47.5% | 52.9% |
| Carpooled | 11.3% | 3.5% |
| Public transit | 5.2% | 9.4% |
| Walked | 23.9% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 12.2% | 34.1% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| 1-unit, detached | 100.0% | 100.0% |
| 1-unit, attached | 0.0% | 0.0% |
| 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 | 0.0% | 0.0% |
Poverty & households
| ZIP 21645 | ZIP 21647 | |
|---|---|---|
| Poverty rate | 18.5% | 1.2% |
| Average household size | 1.83 | 2.42 |
| Mean commute (minutes) | 18 | 29 |
| Median year structure built | 1946 | 1981 |