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ZIP CODE TABULATION AREA

21234

Maryland · 66,334 residents · 13.4 sq mi
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ZIP 21234 is home to 66,334 people in Baltimore County. Density works out to 4,967 people per square mile. The typical home is worth $288,100. The poverty rate is 8.4%, under the national 12.5%. About 36% of adults have finished a four-year degree. Households earn $83,517 at the median, near the US median. Among the 38 ZIP codes in Baltimore County, 21234 ranks 32nd by median household income.

$83,517
US average: $82,259
$44,405
US average: $44,673
$288,100
US average: $376,019
36.4%
US average: 35.6%
Land area
13.4 sq mi
Age, sex & households
Under 18
20.9%
Age 65+
19.1%
48.6%
51.4%
2.38 people
Race & ethnicity · 2024
2024
White, non-Hispanic53.7%(35,645)
Black31.1%(20,653)
Hispanic / Latino5%(3,292)
Asian5.7%(3,802)
Other4.4%(2,942)
76
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.4
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Baltimore County
Income rank vs other ZIPs
LOWEST32ND OF 38HIGHEST
Adjacent ZIPs
21013$171,354
21023$84,474
21030$89,015
Frequently asked

How many people live in ZIP code 21234?

ZIP code 21234 has about 66,334 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21234?

The typical household in ZIP code 21234 earns about $83,517 a year. Half of households make more than that, and half make less.

Is ZIP code 21234 expensive?

In ZIP code 21234, the median home is worth about $288,100, and the typical rent is about $1,587 a month.

How educated are people in ZIP code 21234?

About 36.4% of adults age 25 and over in ZIP code 21234 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21234?

About 8.4% of people in ZIP code 21234 live below the federal poverty line.

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