St. Mary's County, MD

County

Cities in St. Mary's County

Neighborhoods in St. Mary's County

Neighborhood

St. Mary's, MD

Wildewood / Holly Gaf Acres

Green Acres / Tintop Hill

Barefoot Acres / Greenview Knolls

Middle Earth / Peacock Manor

Beauvue / Breton Beach

Dameron / Sunrise Acres

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Demographics of St. Mary's

Median Age

Bachelor's Degree+

36.6%

Households with Children

36.0%

School Enrollment K-12

13,569

Age Distribution

Population breakdown by life stage — from children to seniors. Reveals the generational mix of the community.

Early Childhood (0-4): 6.1%
School Age (5-17): 17.8%
Young Adults (18-34): 22.6%
Working Age (35-54): 25.9%
Pre-Retirement (55-64): 13.5%
Seniors (65+): 14.0%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Educational Attainment

Highest level of education completed by residents 25 and older. Reflects the academic profile of the area.

Less than High School: 7.3%
High School / GED: 27.1%
Some College or Associate's: 29.1%
Bachelor's Degree or Higher: 36.5%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Household Type

Household composition by family type and presence of children. Helps understand the family character of the area.

Families with Kids: 24.7%
Single Parents: 11.3%
Couples & Adults: 35.2%
Living Alone: 28.8%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Racial & Ethnic Composition

Racial and ethnic composition based on U.S. Census self-identification. Hispanic or Latino is an ethnicity that may overlap with any race.

White: 70.3%
Hispanic or Latino: 6.1%
Asian: 2.6%
Black or African American: 14.6%
Other Race / Two or More Races: 6.4%
American Indian and Alaska Native: 0.1%
Native Hawaiian and Pacific Islander: 0.0%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources·Fair Housing Policy

Hispanic Population by Origin

Hispanic or Latino origin is asked separately from race — a person can be both Hispanic and any race.

Mexican: 46.0%
Puerto Rican: 13.9%
Cuban: 1.6%
Dominican: 0.8%
Central American: 14.2%
South American: 11.9%
Other Hispanic or Latino: 11.6%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

White Population by Ancestry

Ancestry reflects how residents self-identify culturally, not necessarily country of birth.

European: 38.8%
Middle Eastern or North African: 0.0%
Other White: 61.2%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Black Population by Origin

Heritage and national origins within the Black or African American population, as reported to the Census.

African American: 62.1%
Sub-Saharan African: 1.4%
Caribbean: 0.9%
Other Black: 35.6%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Place of Birth

Where residents were born — in-state, from other U.S. states, or from abroad. Reflects the community's migration patterns.

Born in Same State: 48.4%
Born in Other U.S. State: 45.6%
Born Outside U.S. (American): 1.7%
Foreign-Born Naturalized: 2.5%
Foreign-Born Non-Citizen: 1.8%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

Language Spoken at Home

Languages spoken by residents at home. Shows the linguistic diversity and cultural makeup of the area.

English Only: 92.7%
Spanish: 2.4%
European & Indo-European: 2.4%
East & Southeast Asian: 2.0%
Arabic: 0.0%
Other: 0.5%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources

School Enrollment

Current school enrollment levels from pre-K through graduate school. Useful for families evaluating local education demand.

Preschool / Kindergarten: 2.8%
Elementary (1-4): 5.3%
Middle School (5-8): 5.4%
High School (9-12): 5.8%
College / Graduate: 6.3%
Not Enrolled: 74.5%

Data: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024·Sources