ZIP 21791 vs ZIP 21797
A side-by-side comparison of ZIP Code 21791 and ZIP Code 21797: population, income, housing, and more.
ZIP 21791 and ZIP 21797 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21797 has the higher population (8,772 vs 4,734 in ZIP 21791). ZIP 21797 has the higher median household income ($185,435 vs $90,460 in ZIP 21791). ZIP 21797 has the higher median home value ($713,400 vs $370,300 in ZIP 21791).
Population, income & housing
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| Population | 4,734 | 8,772 |
| Median age | 40.9 yrs | 44.0 yrs |
| Median household income | $90,460 | $185,435 |
| Median home value | $370,300 | $713,400 |
| Median gross rent | $1,320 | $1,241 |
| Housing units | 1,975 | 3,006 |
| Homeownership rate | 83.6% | 89.9% |
| Bachelor's degree or higher | 26.3% | 48.6% |
| Unemployment rate | 2.4% | 4.3% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| Population | 5,245 → 4,734 (-9.7%) | 8,873 → 8,772 (-1.1%) |
| Median household income | $86,725 → $90,460 (+4.3%) | $136,250 → $185,435 (+36.1%) |
| Median home value | $324,900 → $370,300 (+14.0%) | $581,000 → $713,400 (+22.8%) |
| Median gross rent | $1,069 → $1,320 (+23.5%) | $1,236 → $1,241 (+0.4%) |
ZIP 21791
5,2454,734
$86,725$90,460
$324,900$370,300
$1,069$1,320
ZIP 21797
8,8738,772
$136,250$185,435
$581,000$713,400
$1,236$1,241
Age & race/ethnicity
Age distribution (share)
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| Under 5 | 5.5% | 6.2% |
| 5 to 17 | 16.3% | 16.6% |
| 18 to 24 | 6.0% | 8.7% |
| 25 to 34 | 14.6% | 8.4% |
| 35 to 44 | 12.8% | 10.9% |
| 45 to 54 | 9.5% | 16.6% |
| 55 to 64 | 15.9% | 18.1% |
| 65 to 74 | 10.4% | 9.4% |
| 75 and over | 8.9% | 5.1% |
Race & ethnicity (share)
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| White (non-Hispanic) | 93.6% | 80.7% |
| Black or African American | 1.8% | 2.5% |
| American Indian & Alaska Native | 0.1% | 0.1% |
| Asian | 2.2% | 6.4% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.3% |
| Two or more races | 1.2% | 5.8% |
| Hispanic or Latino | 1.1% | 4.2% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| No high school diploma | 5.6% | 6.6% |
| High school graduate | 43.2% | 20.4% |
| Some college or associate's | 24.9% | 24.4% |
| Bachelor's degree | 15.3% | 25.6% |
| Graduate or professional degree | 11.0% | 23.0% |
Commute to work
How workers get to work (share)
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| Drove alone | 84.3% | 67.5% |
| Carpooled | 5.3% | 6.6% |
| Public transit | 0.4% | 0.9% |
| Walked | 1.8% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 8.1% | 24.9% |
| Other means | 0.1% | 0.2% |
Housing
Units in structure (share)
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| 1-unit, detached | 91.8% | 90.3% |
| 1-unit, attached | 1.9% | 1.0% |
| 2 to 4 units | 3.8% | 4.0% |
| 5 to 19 units | 2.0% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 0.4% | 4.7% |
Poverty & households
| ZIP 21791 | ZIP 21797 | |
|---|---|---|
| Poverty rate | 6.6% | 4.7% |
| Average household size | 2.54 | 2.98 |
| Mean commute (minutes) | 37 | 39 |
| Median year structure built | 1964 | 1986 |