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ZIP CODE TABULATION AREA

20630

Maryland · 559 residents · 6.94 sq mi
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With 559 people, ZIP 20630 is a ZIP code in St. Mary's County. At a median age of 56.1, this is an older place than the country as a whole. The median household earns $233,411, about 184% above the national median. 70% of adults hold a bachelor's degree, against 36% nationally. Households here earn about 95% more than in St. Mary's County as a whole. Median home value sits at $618,100. Among the 17 ZIP codes in St. Mary's County, 20630 ranks 1st by median household income.

$233,411
US average: $82,259
$107,189
US average: $44,673
$618,100
US average: $376,019
70.0%
US average: 35.6%
Land area
6.94 sq mi
Age, sex & households
Under 18
17.9%
Age 65+
27.5%
44.5%
55.5%
2.21 people
Race & ethnicity · 2024
2024
White, non-Hispanic79.8%(446)
Black14.7%(82)
Hispanic / Latino0%(0)
Asian0%(0)
Other5.5%(31)
42
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
2.6
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within St. Mary's County
Income rank vs other ZIPs
LOWEST1ST 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 20630?

ZIP code 20630 has about 559 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 20630?

The typical household in ZIP code 20630 earns about $233,411 a year. Half of households make more than that, and half make less.

Is ZIP code 20630 expensive?

In ZIP code 20630, the median home is worth about $618,100.

How educated are people in ZIP code 20630?

About 70.0% of adults age 25 and over in ZIP code 20630 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 20630?

About 0.0% of people in ZIP code 20630 live below the federal poverty line.

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