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ZIP CODE TABULATION AREA

20659

Maryland · 24,324 residents · 97.005 sq mi
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ZIP 20659 is significantly wealthier than the US average, with a median household income of $121,654. Population has held roughly steady since 2024. Median home value is $416,900. Among the 17 ZIP codes in St. Mary's County, 20659 ranks 10th by median household income.

$121,654
US average: $82,259
$416,900
US average: $376,019
27.5%
US average: 35.6%
Age, sex & households
Under 18
28.0%
Age 65+
14.0%
50.1%
49.9%
2.93 people
Race & ethnicity · 2024
2024
White, non-Hispanic85.4%(20,777)
Black5.3%(1,278)
Hispanic / Latino3.1%(745)
Asian1.1%(273)
Other5.1%(1,251)
Diversity Score33%(8,024)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within St. Mary's County
Income rank vs other ZIPs
LOWEST10TH OF 17HIGHEST
Adjacent ZIPs
20606$88,262
20609$118,102
20618$105,508
20619$119,432
Frequently asked

How many people live in ZIP code 20659?

ZIP code 20659 has about 24,324 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 20659?

The typical household in ZIP code 20659 earns about $121,654 a year. Half of households make more than that, and half make less.

Is ZIP code 20659 expensive?

In ZIP code 20659, the median home is worth about $416,900, and the typical rent is about $1,527 a month.

How educated are people in ZIP code 20659?

About 27.5% of adults age 25 and over in ZIP code 20659 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 20659?

About 7.5% of people in ZIP code 20659 live below the federal poverty line.

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