CensusEasy
ZIP CODE TABULATION AREA

20621

Maryland · 958 residents · 13.9 sq mi
Compare

ZIP 20621 is home to 958 people in St. Mary's County. The median age is 63.0, about 24 years above the US median. 100% of homes are owner-occupied. Four-year degrees are less common here than nationally, at 16% of adults. Getting to work takes 45 minutes on average. The foreign-born share is 2%.

Population
958
Per capita income
$54,408
US average: $44,673
Median home value
$481,100
US average: $376,019
Bachelor's+
15.8%
US average: 35.6%
Land area
13.9 sq mi
Age, sex & households
Median age
63.0
Under 18
14.6%
Age 65+
24.1%
Male
55.7%
Female
44.3%
Avg household
1.79 people
Race & ethnicity · 2024
2024
White, non-Hispanic77%(738)
Black23%(220)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%(0)
Diversity Score
44
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Affordability & inequality
Vacancy rate
12.6%
Owner cost-burdened
49.4%
Income inequality (Gini)
0.484
Within St. Mary's County
Income rank vs other ZIPs
LOWESTHIGHEST
Adjacent ZIPs
20606$88,262
20609$118,102
20618$105,508
20619$119,432
Frequently asked

How many people live in ZIP code 20621?

ZIP code 20621 has about 958 residents according to the 2024 American Community Survey.

Is ZIP code 20621 expensive?

In ZIP code 20621, the median home is worth about $481,100.

How educated are people in ZIP code 20621?

About 15.8% of adults age 25 and over in ZIP code 20621 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 20621?

About 20.0% of people in ZIP code 20621 live below the federal poverty line.

Keep going

Explore from here

Containing area
St. Mary's County

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