US Census Data

ZIP 21540 vs ZIP 21542

A side-by-side comparison of ZIP Code 21540 and ZIP Code 21542: population, income, housing, and more.

ZIP 21540 and ZIP 21542 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21542 has the higher population (161 vs 93 in ZIP 21540). ZIP 21542 has the higher median home value ($85,500 vs $50,000 in ZIP 21540). Since 2019, ZIP 21540's population has grown faster (-8.8% vs -76.6%).

Population, income & housing

ZIP 21540ZIP 21542
Population93161
Median age44.3 yrs25.7 yrs
Median household income$73,125
Median home value$50,000$85,500
Median gross rent$638$707
Housing units5562
Homeownership rate81.1%30.9%
Bachelor's degree or higher14.3%0.0%
Unemployment rate3.6%17.5%

Trends (ACS 5-year, 2019–2023)

ZIP 21540ZIP 21542
Population102 → 93 (-8.8%)687 → 161 (-76.6%)
Median household income$38,409 → $73,125 (+90.4%)$46,000 → $13,889 (-69.8%)
Median home value$25,000 → $50,000 (+100.0%)$79,600 → $85,500 (+7.4%)
Median gross rent$581 → $638 (+9.8%)$775 → $707 (-8.8%)

ZIP 21540

Population
10293
Median household income
$38,409$73,125
Median home value
$25,000$50,000
Median gross rent
$581$638

ZIP 21542

Population
687161
Median household income
$46,000$13,889
Median home value
$79,600$85,500
Median gross rent
$775$707

Age & race/ethnicity

Age distribution (share)

ZIP 21540ZIP 21542
Under 51.1%15.5%
5 to 1725.8%11.2%
18 to 245.4%19.3%
25 to 348.6%16.1%
35 to 4416.1%10.6%
45 to 5430.1%4.3%
55 to 648.6%13.0%
65 to 742.2%6.2%
75 and over2.2%3.7%

Race & ethnicity (share)

ZIP 21540ZIP 21542
White (non-Hispanic)97.8%88.2%
Black or African American1.1%0.0%
American Indian & Alaska Native0.0%0.0%
Asian0.0%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races0.0%11.8%
Hispanic or Latino1.1%0.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21540ZIP 21542
No high school diploma7.9%0.0%
High school graduate66.7%83.9%
Some college or associate's11.1%16.1%
Bachelor's degree11.1%0.0%
Graduate or professional degree3.2%0.0%

Commute to work

How workers get to work (share)

ZIP 21540ZIP 21542
Drove alone94.3%81.8%
Carpooled0.0%9.1%
Public transit0.0%0.0%
Walked5.7%0.0%
Bicycle0.0%0.0%
Worked from home0.0%4.5%
Other means0.0%4.5%

Housing

Units in structure (share)

ZIP 21540ZIP 21542
1-unit, detached61.8%41.9%
1-unit, attached36.4%3.2%
2 to 4 units1.8%9.7%
5 to 19 units0.0%45.2%
20 or more units0.0%0.0%
Mobile home & other0.0%0.0%

Poverty & households

ZIP 21540ZIP 21542
Poverty rate5.4%34.2%
Average household size2.432.93
Mean commute (minutes)2620
Median year structure built19381970

Full profiles

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ZIP 21540 vs ZIP 21542: Compare Population & Demographics | US Census Data