ZIP 20678 vs ZIP 20684
A side-by-side comparison of ZIP Code 20678 and ZIP Code 20684: population, income, housing, and more.
ZIP 20678 and ZIP 20684 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 20678 has the higher population (12,686 vs 825 in ZIP 20684). ZIP 20684 has the higher median household income ($176,938 vs $118,288 in ZIP 20678). ZIP 20678 has the higher median home value ($428,100 vs $375,500 in ZIP 20684).
Population, income & housing
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| Population | 12,686 | 825 |
| Median age | 38.7 yrs | 44.5 yrs |
| Median household income | $118,288 | $176,938 |
| Median home value | $428,100 | $375,500 |
| Median gross rent | $1,408 | — |
| Housing units | 5,016 | 355 |
| Homeownership rate | 79.0% | 94.6% |
| Bachelor's degree or higher | 29.8% | 50.7% |
| Unemployment rate | 2.5% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| Population | 12,261 → 12,686 (+3.5%) | 1,066 → 825 (-22.6%) |
| Median household income | $94,059 → $118,288 (+25.8%) | $107,500 → $176,938 (+64.6%) |
| Median home value | $348,500 → $428,100 (+22.8%) | $302,800 → $375,500 (+24.0%) |
| Median gross rent | $828 → $1,408 (+70.0%) | — |
ZIP 20678
12,26112,686
$94,059$118,288
$348,500$428,100
$828$1,408
ZIP 20684
1,066825
$107,500$176,938
$302,800$375,500
Age & race/ethnicity
Age distribution (share)
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| Under 5 | 6.5% | 0.0% |
| 5 to 17 | 13.9% | 13.5% |
| 18 to 24 | 11.6% | 6.4% |
| 25 to 34 | 11.4% | 9.1% |
| 35 to 44 | 15.9% | 24.7% |
| 45 to 54 | 12.5% | 13.1% |
| 55 to 64 | 11.7% | 10.4% |
| 65 to 74 | 10.1% | 15.4% |
| 75 and over | 6.4% | 7.4% |
Race & ethnicity (share)
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| White (non-Hispanic) | 65.8% | 87.9% |
| Black or African American | 16.6% | 1.2% |
| American Indian & Alaska Native | 0.1% | 0.0% |
| Asian | 2.8% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 1.1% | 0.0% |
| Two or more races | 5.5% | 10.8% |
| Hispanic or Latino | 8.1% | 0.1% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| No high school diploma | 7.4% | 0.0% |
| High school graduate | 31.8% | 37.2% |
| Some college or associate's | 31.0% | 12.1% |
| Bachelor's degree | 16.9% | 41.0% |
| Graduate or professional degree | 13.0% | 9.7% |
Commute to work
How workers get to work (share)
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| Drove alone | 78.0% | 79.3% |
| Carpooled | 7.0% | 0.0% |
| Public transit | 0.6% | 0.0% |
| Walked | 1.2% | 0.4% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 11.5% | 17.2% |
| Other means | 1.8% | 3.1% |
Housing
Units in structure (share)
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| 1-unit, detached | 77.1% | 95.5% |
| 1-unit, attached | 10.4% | 4.5% |
| 2 to 4 units | 1.2% | 0.0% |
| 5 to 19 units | 3.0% | 0.0% |
| 20 or more units | 8.3% | 0.0% |
| Mobile home & other | 0.1% | 0.0% |
Poverty & households
| ZIP 20678 | ZIP 20684 | |
|---|---|---|
| Poverty rate | 9.1% | 1.1% |
| Average household size | 2.61 | 2.32 |
| Mean commute (minutes) | 40 | 23 |
| Median year structure built | 1992 | 1995 |