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ZIP CODE TABULATION AREA

21102

Maryland · 12,162 residents · 40.638 sq mi
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ZIP 21102 is significantly wealthier than the US average, with a median household income of $135,069. Population has held roughly steady since 2024. Median home value is $392,800. With a median age of 44.5, the population is older than the US median of 38.9. Poverty is rare here, at 3.4% of residents. Among the 9 ZIP codes in Carroll County, 21102 ranks 2nd by median household income.

$135,069
US average: $82,259
$392,800
US average: $376,019
34.7%
US average: 35.6%
Age, sex & households
Under 18
21.0%
Age 65+
17.4%
51.8%
48.2%
2.73 people
Race & ethnicity · 2024
2024
White, non-Hispanic89.4%(10,872)
Black1.5%(188)
Hispanic / Latino2.6%(318)
Asian2.6%(318)
Other3.8%(466)
Diversity Score24.7%(3,007)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Carroll County
Income rank vs other ZIPs
LOWEST2ND OF 9HIGHEST
Adjacent ZIPs
21048$131,921
21074$108,536
21157$104,966
21158$109,827
Frequently asked

How many people live in ZIP code 21102?

ZIP code 21102 has about 12,162 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21102?

The typical household in ZIP code 21102 earns about $135,069 a year. Half of households make more than that, and half make less.

Is ZIP code 21102 expensive?

In ZIP code 21102, the median home is worth about $392,800, and the typical rent is about $1,484 a month.

How educated are people in ZIP code 21102?

About 34.7% of adults age 25 and over in ZIP code 21102 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21102?

About 3.4% of people in ZIP code 21102 live below the federal poverty line.

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