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ZIP CODE TABULATION AREA

20842

Maryland · 2,369 residents · 55.651 sq mi
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ZIP 20842 is significantly wealthier than the US average, with a median household income of $204,013. Population has held roughly steady since 2024. 52% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $745,800. With a median age of 48.5, the population is older than the US median of 38.9. Households here earn about 54% more than the Montgomery County median. Among the 44 ZIP codes in Montgomery County, 20842 ranks 9th by median household income.

$204,013
US average: $82,259
$745,800
US average: $376,019
52.0%
US average: 35.6%
Age, sex & households
Under 18
23.6%
Age 65+
14.5%
48.5%
51.5%
2.95 people
Race & ethnicity · 2024
2024
White, non-Hispanic65.5%(1,551)
Black10.3%(245)
Hispanic / Latino15.6%(370)
Asian2.6%(61)
Other6%(142)
Diversity Score66.5%(1,575)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Montgomery County
Income rank vs other ZIPs
LOWEST9TH OF 44HIGHEST
Adjacent ZIPs
20812$213,750
20814$150,996
20815$194,971
20816$232,656
Frequently asked

How many people live in ZIP code 20842?

ZIP code 20842 has about 2,369 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 20842?

The typical household in ZIP code 20842 earns about $204,013 a year. Half of households make more than that, and half make less.

Is ZIP code 20842 expensive?

In ZIP code 20842, the median home is worth about $745,800, and the typical rent is about $1,777 a month.

How educated are people in ZIP code 20842?

About 52.0% of adults age 25 and over in ZIP code 20842 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 20842?

About 1.2% of people in ZIP code 20842 live below the federal poverty line.

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