US Census Data

ZIP 21655 vs ZIP 21657

A side-by-side comparison of ZIP Code 21655 and ZIP Code 21657: population, income, housing, and more.

ZIP 21655 and ZIP 21657 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21655 has the higher population (4,995 vs 1,533 in ZIP 21657). ZIP 21657 has the higher median household income ($106,588 vs $85,608 in ZIP 21655). ZIP 21657 has the higher median home value ($354,400 vs $291,200 in ZIP 21655).

Population, income & housing

ZIP 21655ZIP 21657
Population4,9951,533
Median age42.5 yrs49.2 yrs
Median household income$85,608$106,588
Median home value$291,200$354,400
Median gross rent$1,313$1,750
Housing units2,041558
Homeownership rate82.2%85.0%
Bachelor's degree or higher25.4%21.7%
Unemployment rate3.4%1.7%

Trends (ACS 5-year, 2019–2023)

ZIP 21655ZIP 21657
Population4,747 → 4,995 (+5.2%)910 → 1,533 (+68.5%)
Median household income$65,842 → $85,608 (+30.0%)$111,250 → $106,588 (-4.2%)
Median home value$215,800 → $291,200 (+34.9%)$297,600 → $354,400 (+19.1%)
Median gross rent$1,007 → $1,313 (+30.4%)$1,775 → $1,750 (-1.4%)

ZIP 21655

Population
4,7474,995
Median household income
$65,842$85,608
Median home value
$215,800$291,200
Median gross rent
$1,007$1,313

ZIP 21657

Population
9101,533
Median household income
$111,250$106,588
Median home value
$297,600$354,400
Median gross rent
$1,775$1,750

Age & race/ethnicity

Age distribution (share)

ZIP 21655ZIP 21657
Under 54.2%4.9%
5 to 1717.5%16.9%
18 to 247.9%7.8%
25 to 3410.3%8.3%
35 to 4414.4%11.1%
45 to 5412.4%8.9%
55 to 6416.0%11.2%
65 to 7410.0%25.4%
75 and over7.3%5.5%

Race & ethnicity (share)

ZIP 21655ZIP 21657
White (non-Hispanic)79.2%72.5%
Black or African American10.5%9.0%
American Indian & Alaska Native0.0%0.2%
Asian0.3%0.7%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race2.5%0.0%
Two or more races6.0%5.1%
Hispanic or Latino1.5%12.6%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21655ZIP 21657
No high school diploma8.0%23.2%
High school graduate35.1%25.2%
Some college or associate's31.4%29.9%
Bachelor's degree12.6%14.8%
Graduate or professional degree12.9%6.9%

Commute to work

How workers get to work (share)

ZIP 21655ZIP 21657
Drove alone87.2%81.8%
Carpooled3.4%10.6%
Public transit0.0%0.8%
Walked0.7%0.0%
Bicycle0.0%0.0%
Worked from home5.3%6.8%
Other means3.3%0.0%

Housing

Units in structure (share)

ZIP 21655ZIP 21657
1-unit, detached87.3%95.0%
1-unit, attached2.5%0.0%
2 to 4 units2.6%1.8%
5 to 19 units1.4%0.9%
20 or more units0.0%0.0%
Mobile home & other6.2%2.3%

Poverty & households

ZIP 21655ZIP 21657
Poverty rate7.3%7.3%
Average household size2.702.83
Mean commute (minutes)2938
Median year structure built19791975

Full profiles

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ZIP 21655 vs ZIP 21657: Compare Population & Demographics | US Census Data