US Census Data

ZIP 21657 vs ZIP 21664

A side-by-side comparison of ZIP Code 21657 and ZIP Code 21664: population, income, housing, and more.

ZIP 21657 and ZIP 21664 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21657 has the higher population (1,533 vs 598 in ZIP 21664). ZIP 21657 has the higher median household income ($106,588 vs $68,333 in ZIP 21664). ZIP 21657 has the higher median home value ($354,400 vs $172,100 in ZIP 21664).

Population, income & housing

ZIP 21657ZIP 21664
Population1,533598
Median age49.2 yrs37.1 yrs
Median household income$106,588$68,333
Median home value$354,400$172,100
Median gross rent$1,750$1,135
Housing units558269
Homeownership rate85.0%67.4%
Bachelor's degree or higher21.7%17.0%
Unemployment rate1.7%6.2%

Trends (ACS 5-year, 2019–2023)

ZIP 21657ZIP 21664
Population910 → 1,533 (+68.5%)445 → 598 (+34.4%)
Median household income$111,250 → $106,588 (-4.2%)$44,167 → $68,333 (+54.7%)
Median home value$297,600 → $354,400 (+19.1%)$142,900 → $172,100 (+20.4%)
Median gross rent$1,775 → $1,750 (-1.4%)$1,217 → $1,135 (-6.7%)

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 21664

Population
445598
Median household income
$44,167$68,333
Median home value
$142,900$172,100
Median gross rent
$1,217$1,135

Age & race/ethnicity

Age distribution (share)

ZIP 21657ZIP 21664
Under 54.9%4.5%
5 to 1716.9%27.1%
18 to 247.8%6.5%
25 to 348.3%9.0%
35 to 4411.1%20.7%
45 to 548.9%5.5%
55 to 6411.2%11.4%
65 to 7425.4%9.5%
75 and over5.5%5.7%

Race & ethnicity (share)

ZIP 21657ZIP 21664
White (non-Hispanic)72.5%78.3%
Black or African American9.0%0.2%
American Indian & Alaska Native0.2%0.0%
Asian0.7%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races5.1%2.3%
Hispanic or Latino12.6%19.2%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21657ZIP 21664
No high school diploma23.2%8.6%
High school graduate25.2%53.2%
Some college or associate's29.9%21.1%
Bachelor's degree14.8%8.1%
Graduate or professional degree6.9%8.9%

Commute to work

How workers get to work (share)

ZIP 21657ZIP 21664
Drove alone81.8%90.7%
Carpooled10.6%5.9%
Public transit0.8%0.0%
Walked0.0%0.0%
Bicycle0.0%0.0%
Worked from home6.8%3.5%
Other means0.0%0.0%

Housing

Units in structure (share)

ZIP 21657ZIP 21664
1-unit, detached95.0%93.3%
1-unit, attached0.0%1.5%
2 to 4 units1.8%1.1%
5 to 19 units0.9%0.0%
20 or more units0.0%0.0%
Mobile home & other2.3%4.1%

Poverty & households

ZIP 21657ZIP 21664
Poverty rate7.3%9.7%
Average household size2.832.53
Mean commute (minutes)3825
Median year structure built19751971

Full profiles

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ZIP 21657 vs ZIP 21664: Compare Population & Demographics | US Census Data