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ZIP CODE TABULATION AREA

21128

Maryland · 15,501 residents · 6.807 sq mi
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ZIP 21128 is significantly wealthier than the US average, with a median household income of $128,069. Population has held roughly steady since 2024. 55% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $449,500. Poverty is rare here, at 3.1% of residents. Households here earn about 40% more than the Baltimore County median. Among the 38 ZIP codes in Baltimore County, 21128 ranks 13th by median household income.

$128,069
US average: $82,259
$449,500
US average: $376,019
54.8%
US average: 35.6%
Age, sex & households
Under 18
21.7%
Age 65+
17.5%
50.6%
49.4%
2.75 people
Race & ethnicity · 2024
2024
White, non-Hispanic62.3%(9,650)
Black10.8%(1,680)
Hispanic / Latino7%(1,082)
Asian16.1%(2,490)
Other3.9%(599)
Diversity Score71.1%(11,016)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Baltimore County
Income rank vs other ZIPs
LOWEST13TH OF 38HIGHEST
Adjacent ZIPs
21013$171,354
21023$84,474
21030$89,015
Frequently asked

How many people live in ZIP code 21128?

ZIP code 21128 has about 15,501 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21128?

The typical household in ZIP code 21128 earns about $128,069 a year. Half of households make more than that, and half make less.

Is ZIP code 21128 expensive?

In ZIP code 21128, the median home is worth about $449,500, and the typical rent is about $1,935 a month.

How educated are people in ZIP code 21128?

About 54.8% of adults age 25 and over in ZIP code 21128 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21128?

About 3.1% of people in ZIP code 21128 live below the federal poverty line.

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