In 2021, St. Mary's County, MD had a population of 113k people with a median age of 36.7 and a median household income of $102,859. Between 2020 and 2021 the population of St. Mary's County, MD grew from 113,182 to 113,209, a 0.0239% increase and its median household income grew from $95,864 to $102,859, a 7.3% increase.
The 5 largest ethnic groups in St. Mary's County, MD are White (Non-Hispanic) (72.7%), Black or African American (Non-Hispanic) (14%), Two+ (Non-Hispanic) (4.97%), Asian (Non-Hispanic) (2.5%), and White (Hispanic) (2.47%).
None of the households in St. Mary's County, MD reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
97.4% of the residents in St. Mary's County, MD are U.S. citizens.
The largest universities in St. Mary's County, MD are St. Mary's College of Maryland (163912) (408 degrees awarded in 2021) and Blades School of Hair Design (36 degrees).
In 2021, the median property value in St. Mary's County, MD was $326,800, and the homeownership rate was 71.7%.
Most people in St. Mary's County, MD drove alone to work, and the average commute time was 30.5 minutes. The average car ownership in St. Mary's County, MD was 2 cars per household.
St. Mary's County, MD borders Calvert County, MD, Charles County, MD, Dorchester County, MD, Somerset County, MD, Northumberland County, VA, and Westmoreland County, VA.