ZIP 21718 vs ZIP 21723
A side-by-side comparison of ZIP Code 21718 and ZIP Code 21723: population, income, housing, and more.
ZIP 21718 and ZIP 21723 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 21723 has the higher population (587 vs 142 in ZIP 21718). ZIP 21723 has the higher median household income ($250,001 vs $102,917 in ZIP 21718). ZIP 21723 has the higher median home value ($914,800 vs $446,900 in ZIP 21718).
Population, income & housing
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| Population | 142 | 587 |
| Median age | 54.8 yrs | 41.7 yrs |
| Median household income | $102,917 | $250,001 |
| Median home value | $446,900 | $914,800 |
| Median gross rent | $1,104 | — |
| Housing units | 68 | 221 |
| Homeownership rate | 71.2% | 94.6% |
| Bachelor's degree or higher | 49.1% | 86.0% |
| Unemployment rate | 9.3% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| Population | 151 → 142 (-6.0%) | 759 → 587 (-22.7%) |
| Median household income | $80,417 → $102,917 (+28.0%) | $231,172 → $250,001 (+8.1%) |
| Median home value | $408,000 → $446,900 (+9.5%) | $663,200 → $914,800 (+37.9%) |
| Median gross rent | $1,281 → $1,104 (-13.8%) | — |
ZIP 21718
151142
$80,417$102,917
$408,000$446,900
$1,281$1,104
ZIP 21723
759587
$231,172$250,001
$663,200$914,800
Age & race/ethnicity
Age distribution (share)
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| Under 5 | 2.1% | 3.1% |
| 5 to 17 | 12.7% | 18.6% |
| 18 to 24 | 4.9% | 2.9% |
| 25 to 34 | 6.3% | 6.8% |
| 35 to 44 | 4.2% | 24.7% |
| 45 to 54 | 21.1% | 20.6% |
| 55 to 64 | 19.7% | 15.2% |
| 65 to 74 | 23.2% | 4.1% |
| 75 and over | 5.6% | 4.1% |
Race & ethnicity (share)
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| White (non-Hispanic) | 91.5% | 39.4% |
| Black or African American | 0.0% | 2.6% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 52.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 4.2% | 1.2% |
| Two or more races | 4.2% | 4.9% |
| Hispanic or Latino | 0.0% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| No high school diploma | 1.8% | 0.0% |
| High school graduate | 28.9% | 4.7% |
| Some college or associate's | 20.2% | 9.3% |
| Bachelor's degree | 21.1% | 51.2% |
| Graduate or professional degree | 28.1% | 34.8% |
Commute to work
How workers get to work (share)
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| Drove alone | 74.0% | 72.3% |
| Carpooled | 2.6% | 0.0% |
| Public transit | 3.9% | 0.0% |
| Walked | 3.9% | 3.3% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 14.3% | 24.5% |
| Other means | 1.3% | 0.0% |
Housing
Units in structure (share)
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| 1-unit, detached | 88.2% | 94.6% |
| 1-unit, attached | 1.5% | 0.0% |
| 2 to 4 units | 2.9% | 5.4% |
| 5 to 19 units | 7.4% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 0.0% | 0.0% |
Poverty & households
| ZIP 21718 | ZIP 21723 | |
|---|---|---|
| Poverty rate | 4.2% | 0.0% |
| Average household size | 2.15 | 2.66 |
| Mean commute (minutes) | 33 | 33 |
| Median year structure built | 1938 | 2000 |