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ZIP CODE TABULATION AREA

21797

Maryland · 8,643 residents · 43.7 sq mi
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ZIP 21797 is home to 8,643 people in Howard County. Median household income runs $189,241, well clear of the $82,259 US median. 92% of homes are owner-occupied. The typical home is worth $735,600. The median age is 45.3, about 6 years above the US median. This is an unusually credentialed place: 51% of adults have a four-year degree. Among the 20 ZIP codes in Howard County, 21797 ranks 11th by median household income.

$189,241
US average: $82,259
$70,998
US average: $44,673
$735,600
US average: $376,019
51.5%
US average: 35.6%
Land area
43.7 sq mi
Age, sex & households
Under 18
22.1%
Age 65+
16.0%
52.2%
47.8%
3.03 people
Race & ethnicity · 2024
2024
White, non-Hispanic80.6%(6,965)
Black3.6%(314)
Hispanic / Latino4%(348)
Asian6.1%(531)
Other5.6%(485)
43
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.9
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Howard County
Income rank vs other ZIPs
LOWEST11TH OF 20HIGHEST
Adjacent ZIPs
20701$85,594
20723$138,113
20759$250,001
20763$76,842
Frequently asked

How many people live in ZIP code 21797?

ZIP code 21797 has about 8,643 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 21797?

The typical household in ZIP code 21797 earns about $189,241 a year. Half of households make more than that, and half make less.

Is ZIP code 21797 expensive?

In ZIP code 21797, the median home is worth about $735,600, and the typical rent is about $1,535 a month.

How educated are people in ZIP code 21797?

About 51.5% of adults age 25 and over in ZIP code 21797 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 21797?

About 2.4% of people in ZIP code 21797 live below the federal poverty line.

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