St. Mary's County, MD — Population & Demographics
St. Mary's County, MD has a population of 114,372. The median household income is $114,580 and the median age is 37.0.
114,372
Population
$114,580
Median Income
$390,900
Median Home Value
37.0
Median Age
Race & Ethnicity
| White | 72.3% |
| Black or African American | 14.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.7% |
| Two or More Races | 0.0% |
Economy & Income
$114,580
Median Household Income
$51,358
Per Capita Income
5.6%
Poverty Rate
2.5%
Unemployment
Housing
$390,900
Median Home Value
$1,692
Median Rent
72.6%
Homeownership
Education
92.4%
High School+
35.1%
Bachelor's+
Frequently Asked Questions
St. Mary's County, MD has a population of 114,372 according to Census ACS 2023 data.
The median household income in St. Mary's County, MD is $114,580.
Data from the American Community Survey (ACS) 5-Year estimates.