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ZIP CODE TABULATION AREA

21788

Maryland · 11,654 residents · 65.442 sq mi
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ZIP 21788 is wealthier than most US places, with a median household income of $98,856. Population has held roughly steady since 2024. Median home value is $379,200. With a median age of 44.6, the population is older than the US median of 38.9. Among the 26 ZIP codes in Frederick County, 21788 ranks 20th by median household income.

$98,856
US average: $82,259
$379,200
US average: $376,019
31.3%
US average: 35.6%
Age, sex & households
Under 18
19.4%
Age 65+
20.1%
50.9%
49.1%
2.51 people
Race & ethnicity · 2024
2024
White, non-Hispanic89.7%(10,449)
Black0.9%(103)
Hispanic / Latino5.4%(625)
Asian1.4%(158)
Other2.7%(319)
Diversity Score24%(2,800)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Frederick County
Income rank vs other ZIPs
LOWEST20TH OF 26HIGHEST
Adjacent ZIPs
21701$106,577
21702$106,983
21703$106,334
21704$161,063
Frequently asked

How many people live in ZIP code 21788?

ZIP code 21788 has about 11,654 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21788?

The typical household in ZIP code 21788 earns about $98,856 a year. Half of households make more than that, and half make less.

Is ZIP code 21788 expensive?

In ZIP code 21788, the median home is worth about $379,200, and the typical rent is about $959 a month.

How educated are people in ZIP code 21788?

About 31.3% of adults age 25 and over in ZIP code 21788 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21788?

About 8.6% of people in ZIP code 21788 live below the federal poverty line.

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