US Census Data

ZIP 21040 vs ZIP 21048

A side-by-side comparison of ZIP Code 21040 and ZIP Code 21048: population, income, housing, and more.

ZIP 21040 and ZIP 21048 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21040 has the higher population (25,290 vs 10,002 in ZIP 21048). ZIP 21048 has the higher median household income ($122,801 vs $86,925 in ZIP 21040). ZIP 21048 has the higher median home value ($423,900 vs $231,100 in ZIP 21040).

Population, income & housing

ZIP 21040ZIP 21048
Population25,29010,002
Median age36.8 yrs44.7 yrs
Median household income$86,925$122,801
Median home value$231,100$423,900
Median gross rent$1,420$1,500
Housing units10,2113,740
Homeownership rate68.6%93.9%
Bachelor's degree or higher23.2%43.5%
Unemployment rate8.3%4.0%

Trends (ACS 5-year, 2019–2023)

ZIP 21040ZIP 21048
Population24,166 → 25,290 (+4.7%)10,276 → 10,002 (-2.7%)
Median household income$66,727 → $86,925 (+30.3%)$111,684 → $122,801 (+10.0%)
Median home value$173,900 → $231,100 (+32.9%)$356,800 → $423,900 (+18.8%)
Median gross rent$1,229 → $1,420 (+15.5%)$1,203 → $1,500 (+24.7%)

ZIP 21040

Population
24,16625,290
Median household income
$66,727$86,925
Median home value
$173,900$231,100
Median gross rent
$1,229$1,420

ZIP 21048

Population
10,27610,002
Median household income
$111,684$122,801
Median home value
$356,800$423,900
Median gross rent
$1,203$1,500

Age & race/ethnicity

Age distribution (share)

ZIP 21040ZIP 21048
Under 56.2%4.7%
5 to 1717.8%16.0%
18 to 2410.0%8.3%
25 to 3414.2%9.7%
35 to 4413.1%11.5%
45 to 5413.3%10.6%
55 to 6411.8%19.7%
65 to 7410.2%9.7%
75 and over3.4%9.9%

Race & ethnicity (share)

ZIP 21040ZIP 21048
White (non-Hispanic)36.0%85.9%
Black or African American45.0%3.5%
American Indian & Alaska Native0.0%0.0%
Asian1.5%4.7%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.3%0.0%
Two or more races7.7%2.9%
Hispanic or Latino9.6%2.9%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21040ZIP 21048
No high school diploma5.8%3.7%
High school graduate35.1%29.2%
Some college or associate's35.9%23.6%
Bachelor's degree12.5%26.8%
Graduate or professional degree10.7%16.7%

Commute to work

How workers get to work (share)

ZIP 21040ZIP 21048
Drove alone74.8%72.1%
Carpooled10.9%6.0%
Public transit1.6%1.3%
Walked1.5%0.0%
Bicycle0.1%0.0%
Worked from home9.3%19.2%
Other means1.8%1.3%

Housing

Units in structure (share)

ZIP 21040ZIP 21048
1-unit, detached42.4%90.9%
1-unit, attached32.7%2.2%
2 to 4 units6.0%2.8%
5 to 19 units11.4%0.0%
20 or more units2.7%0.4%
Mobile home & other4.7%3.7%

Poverty & households

ZIP 21040ZIP 21048
Poverty rate10.9%2.2%
Average household size2.562.74
Mean commute (minutes)3140
Median year structure built19831980

Full profiles

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ZIP 21040 vs ZIP 21048: Compare Population & Demographics | US Census Data