St. Mary's County, Maryland

Total Population: 114,372

County Seat: Leonardtown

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Median Home Value

$390,900

Owner-occupied units

Median Household Income

$114,580

Across all households

Median Age

37 yrs

Across all residents

Bachelor's Degree+

35.1%

Adults 25 and older

Nearby Counties

Demographics

14 fields

Racial & Ethnic Composition

White (Non-Hispanic)71.0%
Black (Non-Hispanic)14.6%
Hispanic or Latino5.9%
Two or More Races5.6%
Asian (Non-Hispanic)2.5%
Other Race0.3%

Under 18 Years

24.0%

65 Years and Over

13.7%

Male

50.4%

Female

49.6%

U.S. Citizens (18+)

97.8%

No Health Insurance

3.7%

Education

3 fields

High School Graduate or Higher (25+)

92.4%

Bachelor's Degree or Higher (25+)

35.1%

Enrolled in College (18+)

7.7%

Economics

6 fields

Median Household Income

$114,580

Mean Household Income

$138,624

Per Capita Income

$51,358

Unemployment Rate (16+)

3.7%

In Labor Force (19–64)

81.3%

SNAP / Food Stamps

10.9%

Housing & Households

13 fields

Median Home Value

$390,900

Median Rent

$1,692/mo

Total Housing Units

46,078

Owner-Occupied

72.6%

Renter-Occupied

27.4%

Vacancy Rate

9.4%

Married Couple Households

53.6%

Cohabiting Couple Households

6.2%

Male Householder, No Partner

17.8%

Female Householder, No Partner

22.3%

Average Household Size

2.68

Broadband Internet Access

90.9%

Housing Built Since 2010

15.5%

Source: U.S. Census Bureau, American Community Survey 2023 5-Year Estimates. County FIPS 24037.