US Census Data

ZIP 21740 vs ZIP 21742

A side-by-side comparison of ZIP Code 21740 and ZIP Code 21742: population, income, housing, and more.

ZIP 21740 and ZIP 21742 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21740 has the higher population (63,140 vs 35,114 in ZIP 21742). ZIP 21742 has the higher median household income ($80,533 vs $59,410 in ZIP 21740). ZIP 21742 has the higher median home value ($280,100 vs $241,600 in ZIP 21740).

Population, income & housing

ZIP 21740ZIP 21742
Population63,14035,114
Median age38.8 yrs41.3 yrs
Median household income$59,410$80,533
Median home value$241,600$280,100
Median gross rent$1,031$1,267
Housing units27,00214,099
Homeownership rate55.2%66.6%
Bachelor's degree or higher20.1%29.9%
Unemployment rate6.1%4.9%

Trends (ACS 5-year, 2019–2023)

ZIP 21740ZIP 21742
Population61,768 → 63,140 (+2.2%)33,483 → 35,114 (+4.9%)
Median household income$48,372 → $59,410 (+22.8%)$65,638 → $80,533 (+22.7%)
Median home value$173,600 → $241,600 (+39.2%)$218,300 → $280,100 (+28.3%)
Median gross rent$855 → $1,031 (+20.6%)$1,036 → $1,267 (+22.3%)

ZIP 21740

Population
61,76863,140
Median household income
$48,372$59,410
Median home value
$173,600$241,600
Median gross rent
$855$1,031

ZIP 21742

Population
33,48335,114
Median household income
$65,638$80,533
Median home value
$218,300$280,100
Median gross rent
$1,036$1,267

Age & race/ethnicity

Age distribution (share)

ZIP 21740ZIP 21742
Under 55.9%7.0%
5 to 1716.4%16.8%
18 to 248.6%8.0%
25 to 3413.9%12.1%
35 to 4413.7%11.3%
45 to 5413.3%12.7%
55 to 6412.0%13.5%
65 to 749.4%10.7%
75 and over6.9%8.0%

Race & ethnicity (share)

ZIP 21740ZIP 21742
White (non-Hispanic)64.3%69.8%
Black or African American17.8%10.2%
American Indian & Alaska Native0.1%0.1%
Asian1.8%2.7%
Native Hawaiian & Pacific Islander0.1%0.0%
Some other race0.2%0.6%
Two or more races5.8%6.1%
Hispanic or Latino9.9%10.5%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21740ZIP 21742
No high school diploma14.0%9.9%
High school graduate36.9%29.7%
Some college or associate's29.0%30.5%
Bachelor's degree12.1%16.8%
Graduate or professional degree8.0%13.1%

Commute to work

How workers get to work (share)

ZIP 21740ZIP 21742
Drove alone71.7%76.2%
Carpooled10.8%8.5%
Public transit2.0%0.2%
Walked1.7%1.6%
Bicycle0.6%0.0%
Worked from home10.1%12.6%
Other means2.9%0.9%

Housing

Units in structure (share)

ZIP 21740ZIP 21742
1-unit, detached49.1%57.5%
1-unit, attached22.8%15.7%
2 to 4 units10.2%4.2%
5 to 19 units11.3%14.8%
20 or more units5.0%5.5%
Mobile home & other1.6%2.3%

Poverty & households

ZIP 21740ZIP 21742
Poverty rate17.2%11.3%
Average household size2.382.61
Mean commute (minutes)2827
Median year structure built19711980

Full profiles

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