US Census Data

ZIP 21131 vs ZIP 21133

A side-by-side comparison of ZIP Code 21131 and ZIP Code 21133: population, income, housing, and more.

ZIP 21131 and ZIP 21133 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21133 has the higher population (31,847 vs 7,050 in ZIP 21131). ZIP 21131 has the higher median household income ($187,250 vs $84,248 in ZIP 21133). ZIP 21131 has the higher median home value ($662,900 vs $302,000 in ZIP 21133).

Population, income & housing

ZIP 21131ZIP 21133
Population7,05031,847
Median age48.5 yrs47.5 yrs
Median household income$187,250$84,248
Median home value$662,900$302,000
Median gross rent$1,518
Housing units2,62212,785
Homeownership rate98.9%69.1%
Bachelor's degree or higher71.7%34.6%
Unemployment rate4.3%7.2%

Trends (ACS 5-year, 2019–2023)

ZIP 21131ZIP 21133
Population7,282 → 7,050 (-3.2%)33,299 → 31,847 (-4.4%)
Median household income$144,570 → $187,250 (+29.5%)$80,969 → $84,248 (+4.0%)
Median home value$552,900 → $662,900 (+19.9%)$241,400 → $302,000 (+25.1%)
Median gross rent$1,840 → $2,100 (+14.1%)$1,214 → $1,518 (+25.0%)

ZIP 21131

Population
7,2827,050
Median household income
$144,570$187,250
Median home value
$552,900$662,900
Median gross rent
$1,840$2,100

ZIP 21133

Population
33,29931,847
Median household income
$80,969$84,248
Median home value
$241,400$302,000
Median gross rent
$1,214$1,518

Age & race/ethnicity

Age distribution (share)

ZIP 21131ZIP 21133
Under 54.8%4.1%
5 to 1717.4%14.2%
18 to 244.9%8.1%
25 to 345.8%8.9%
35 to 4413.7%11.4%
45 to 5414.0%14.0%
55 to 6417.1%18.3%
65 to 7413.6%13.1%
75 and over8.7%8.0%

Race & ethnicity (share)

ZIP 21131ZIP 21133
White (non-Hispanic)92.9%9.3%
Black or African American0.2%77.0%
American Indian & Alaska Native0.1%0.1%
Asian1.6%1.7%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.8%1.0%
Two or more races1.9%3.8%
Hispanic or Latino2.5%7.2%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21131ZIP 21133
No high school diploma1.7%9.7%
High school graduate15.5%25.6%
Some college or associate's11.0%30.1%
Bachelor's degree37.5%19.4%
Graduate or professional degree34.3%15.2%

Commute to work

How workers get to work (share)

ZIP 21131ZIP 21133
Drove alone68.5%72.5%
Carpooled10.7%7.9%
Public transit0.0%6.2%
Walked1.8%0.5%
Bicycle0.0%0.0%
Worked from home19.0%11.3%
Other means0.0%1.7%

Housing

Units in structure (share)

ZIP 21131ZIP 21133
1-unit, detached98.7%53.4%
1-unit, attached1.3%20.3%
2 to 4 units0.0%2.2%
5 to 19 units0.0%18.8%
20 or more units0.0%5.3%
Mobile home & other0.0%0.0%

Poverty & households

ZIP 21131ZIP 21133
Poverty rate3.4%8.8%
Average household size2.862.50
Mean commute (minutes)3033
Median year structure built19771977

Full profiles

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ZIP 21131 vs ZIP 21133: Compare Population & Demographics | US Census Data