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ZIP CODE TABULATION AREA

21057

Maryland · 4,386 residents · 15.9 sq mi
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ZIP 21057 is a ZIP code of 4,386 people in Baltimore County. Households here earn about 59% more than in Baltimore County as a whole. 54% of adults hold a bachelor's degree, against 36% nationally. 85% of homes are owner-occupied. The median household earns $145,924, about 77% above the national median. Median home value sits at $623,200. Among the 38 ZIP codes in Baltimore County, 21057 ranks 8th by median household income.

$145,924
US average: $82,259
$61,920
US average: $44,673
$623,200
US average: $376,019
54.0%
US average: 35.6%
Land area
15.9 sq mi
Age, sex & households
Under 18
25.0%
Age 65+
21.8%
49.5%
50.5%
2.82 people
Race & ethnicity · 2024
2024
White, non-Hispanic83.7%(3,671)
Black4.6%(201)
Hispanic / Latino7.1%(313)
Asian1.5%(64)
Other3.1%(137)
36
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
4.3
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
LOWEST8TH OF 38HIGHEST
Adjacent ZIPs
21013$171,354
21023$84,474
21030$89,015
Frequently asked

How many people live in ZIP code 21057?

ZIP code 21057 has about 4,386 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21057?

The typical household in ZIP code 21057 earns about $145,924 a year. Half of households make more than that, and half make less.

Is ZIP code 21057 expensive?

In ZIP code 21057, the median home is worth about $623,200, and the typical rent is about $1,746 a month.

How educated are people in ZIP code 21057?

About 54.0% of adults age 25 and over in ZIP code 21057 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21057?

About 3.1% of people in ZIP code 21057 live below the federal poverty line.

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