US Census Data

ZIP 21657 vs ZIP 21661

A side-by-side comparison of ZIP Code 21657 and ZIP Code 21661: population, income, housing, and more.

ZIP 21657 and ZIP 21661 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21661 has the higher population (2,400 vs 1,533 in ZIP 21657). ZIP 21657 has the higher median household income ($106,588 vs $87,778 in ZIP 21661). ZIP 21657 has the higher median home value ($354,400 vs $258,800 in ZIP 21661).

Population, income & housing

ZIP 21657ZIP 21661
Population1,5332,400
Median age49.2 yrs59.0 yrs
Median household income$106,588$87,778
Median home value$354,400$258,800
Median gross rent$1,750$1,146
Housing units5581,737
Homeownership rate85.0%76.8%
Bachelor's degree or higher21.7%36.7%
Unemployment rate1.7%1.2%

Trends (ACS 5-year, 2019–2023)

ZIP 21657ZIP 21661
Population910 → 1,533 (+68.5%)2,487 → 2,400 (-3.5%)
Median household income$111,250 → $106,588 (-4.2%)$41,250 → $87,778 (+112.8%)
Median home value$297,600 → $354,400 (+19.1%)$197,800 → $258,800 (+30.8%)
Median gross rent$1,775 → $1,750 (-1.4%)$1,069 → $1,146 (+7.2%)

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

ZIP 21661

Population
2,4872,400
Median household income
$41,250$87,778
Median home value
$197,800$258,800
Median gross rent
$1,069$1,146

Age & race/ethnicity

Age distribution (share)

ZIP 21657ZIP 21661
Under 54.9%1.2%
5 to 1716.9%12.2%
18 to 247.8%5.2%
25 to 348.3%11.8%
35 to 4411.1%9.1%
45 to 548.9%5.4%
55 to 6411.2%18.5%
65 to 7425.4%19.4%
75 and over5.5%17.2%

Race & ethnicity (share)

ZIP 21657ZIP 21661
White (non-Hispanic)72.5%89.0%
Black or African American9.0%3.1%
American Indian & Alaska Native0.2%0.0%
Asian0.7%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.2%
Two or more races5.1%2.0%
Hispanic or Latino12.6%5.7%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21657ZIP 21661
No high school diploma23.2%7.5%
High school graduate25.2%31.6%
Some college or associate's29.9%24.2%
Bachelor's degree14.8%19.9%
Graduate or professional degree6.9%16.9%

Commute to work

How workers get to work (share)

ZIP 21657ZIP 21661
Drove alone81.8%76.4%
Carpooled10.6%7.7%
Public transit0.8%0.0%
Walked0.0%7.0%
Bicycle0.0%0.6%
Worked from home6.8%7.3%
Other means0.0%0.9%

Housing

Units in structure (share)

ZIP 21657ZIP 21661
1-unit, detached95.0%83.8%
1-unit, attached0.0%5.3%
2 to 4 units1.8%1.3%
5 to 19 units0.9%5.8%
20 or more units0.0%2.0%
Mobile home & other2.3%1.8%

Poverty & households

ZIP 21657ZIP 21661
Poverty rate7.3%10.3%
Average household size2.832.04
Mean commute (minutes)3826
Median year structure built19751976

Full profiles

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ZIP 21657 vs ZIP 21661: Compare Population & Demographics | US Census Data