US Census Data

ZIP 21798 vs ZIP 21804

A side-by-side comparison of ZIP Code 21798 and ZIP Code 21804: population, income, housing, and more.

ZIP 21798 and ZIP 21804 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21804 has the higher population (39,461 vs 2,765 in ZIP 21798). ZIP 21798 has the higher median household income ($125,583 vs $68,882 in ZIP 21804). ZIP 21798 has the higher median home value ($466,100 vs $230,200 in ZIP 21804).

Population, income & housing

ZIP 21798ZIP 21804
Population2,76539,461
Median age41.6 yrs32.2 yrs
Median household income$125,583$68,882
Median home value$466,100$230,200
Median gross rent$932$1,343
Housing units93316,736
Homeownership rate81.5%49.3%
Bachelor's degree or higher37.2%28.1%
Unemployment rate5.3%7.9%

Trends (ACS 5-year, 2019–2023)

ZIP 21798ZIP 21804
Population2,057 → 2,765 (+34.4%)40,877 → 39,461 (-3.5%)
Median household income$82,500 → $125,583 (+52.2%)$52,638 → $68,882 (+30.9%)
Median home value$344,700 → $466,100 (+35.2%)$168,800 → $230,200 (+36.4%)
Median gross rent$796 → $932 (+17.1%)$1,133 → $1,343 (+18.5%)

ZIP 21798

Population
2,0572,765
Median household income
$82,500$125,583
Median home value
$344,700$466,100
Median gross rent
$796$932

ZIP 21804

Population
40,87739,461
Median household income
$52,638$68,882
Median home value
$168,800$230,200
Median gross rent
$1,133$1,343

Age & race/ethnicity

Age distribution (share)

ZIP 21798ZIP 21804
Under 53.9%6.1%
5 to 1721.0%15.7%
18 to 249.6%16.6%
25 to 349.4%15.1%
35 to 449.0%10.6%
45 to 5417.0%10.7%
55 to 6416.6%10.5%
65 to 748.5%9.0%
75 and over5.0%5.8%

Race & ethnicity (share)

ZIP 21798ZIP 21804
White (non-Hispanic)80.4%54.2%
Black or African American13.1%29.8%
American Indian & Alaska Native0.0%0.1%
Asian0.7%3.5%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races3.8%5.1%
Hispanic or Latino2.1%7.3%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21798ZIP 21804
No high school diploma6.2%11.3%
High school graduate23.8%33.2%
Some college or associate's32.8%27.4%
Bachelor's degree21.7%17.4%
Graduate or professional degree15.5%10.7%

Commute to work

How workers get to work (share)

ZIP 21798ZIP 21804
Drove alone66.1%79.3%
Carpooled11.3%12.5%
Public transit0.0%0.7%
Walked2.7%1.1%
Bicycle0.0%0.1%
Worked from home15.2%4.8%
Other means4.8%1.6%

Housing

Units in structure (share)

ZIP 21798ZIP 21804
1-unit, detached85.2%58.8%
1-unit, attached4.2%10.1%
2 to 4 units1.6%3.8%
5 to 19 units5.8%19.2%
20 or more units0.5%6.8%
Mobile home & other2.7%1.2%

Poverty & households

ZIP 21798ZIP 21804
Poverty rate13.9%16.1%
Average household size3.222.50
Mean commute (minutes)3523
Median year structure built19871980

Full profiles

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ZIP 21798 vs ZIP 21804: Compare Population & Demographics | US Census Data