St. Mary's County, Maryland
Total Population: 114,372
County Seat: Leonardtown
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 fieldsRacial & Ethnic Composition
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 fieldsHigh School Graduate or Higher (25+)
92.4%
Bachelor's Degree or Higher (25+)
35.1%
Enrolled in College (18+)
7.7%
Economics
6 fieldsMedian 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 fieldsMedian 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.