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ZIP CODE TABULATION AREA

21131

Maryland · 7,141 residents · 21.033 sq mi
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ZIP 21131 is significantly wealthier than the US average, with a median household income of $197,619. Population has held roughly steady since 2024. 74% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $686,000. With a median age of 49.4, the population is older than the US median of 38.9. Households here earn about 115% more than the Baltimore County median. Among the 38 ZIP codes in Baltimore County, 21131 ranks 4th by median household income.

$197,619
US average: $82,259
$686,000
US average: $376,019
73.9%
US average: 35.6%
Age, sex & households
Under 18
21.7%
Age 65+
22.2%
52.6%
47.4%
2.75 people
Race & ethnicity · 2024
2024
White, non-Hispanic92.8%(6,625)
Black0.7%(50)
Hispanic / Latino1.5%(110)
Asian1.3%(94)
Other3.7%(262)
Diversity Score17.2%(1,227)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Baltimore County
Income rank vs other ZIPs
LOWEST4TH OF 38HIGHEST
Adjacent ZIPs
21013$171,354
21023$84,474
21030$89,015
Frequently asked

How many people live in ZIP code 21131?

ZIP code 21131 has about 7,141 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21131?

The typical household in ZIP code 21131 earns about $197,619 a year. Half of households make more than that, and half make less.

Is ZIP code 21131 expensive?

In ZIP code 21131, the median home is worth about $686,000.

How educated are people in ZIP code 21131?

About 73.9% of adults age 25 and over in ZIP code 21131 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21131?

About 4.7% of people in ZIP code 21131 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024