Population By Race and Ethnicity in St. Mary's County, MD in 2012

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2012, the 108,847 population of St. Mary's County, Maryland comprised of 4,652 people who identified as Hispanic (4.27%), and 104,195 people who identified as Non-Hispanic (95.73%).

Race: The White Alone population was the largest racial group in St. Mary's County, Maryland with a population of 86,658 (79.61%); Black or African American Alone population was the second largest racial group with a population of 15,426 (14.17%); and Two Or More Races was the third largest racial group with a population of 3,316 (3.05%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Mary's County, Maryland in 2012, with a population of 82,912 (76.17%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 15,058 (13.83%); and the third largest ethnic group was White Alone - Hispanic with a population of 3,746 (3.44%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in St. Mary's, Maryland.

You can find similar information for other Maryland counties, and for Maryland.

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Hispanics and Non Hispanics in St. Mary's County, MD in 2012
Total Population:
Race in St. Mary's County, MD in 2012
Total Population:
Ethnicity in St. Mary's County, MD in 2012
Total Population:
Population By Race in St. Mary's , MD in 2012
Race Population Percentage
Black or African American Alone 15,426 14.17%
White Alone 86,658 79.61%
American Indian and Alaska Native Alone 467 0.43%
Asian Alone 2,878 2.64%
Native Hawaiian And Pacific Islander Alone 102 0.09%
Two Or More Races 3,316 3.05%
Population By Ethnicity in St. Mary's , MD in 2012
Ethnicity Population Percentage
Black or African American Alone - Hispanic 368 0.34%
White Alone - Hispanic 3,746 3.44%
American Indian and Alaska Native Alone - Hispanic 133 0.12%
Asian Alone - Hispanic 80 0.07%
Native Hawaiian And Pacific Islander Alone - Hispanic 27 0.03%
Two Or More Races - Hispanic 298 0.27%
Black or African American Alone - Non Hispanic 15,058 13.83%
White Alone - Non Hispanic 82,912 76.17%
American Indian and Alaska Native Alone - Non Hispanic 334 0.31%
Asian Alone - Non Hispanic 2,798 2.57%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 75 0.07%
Two Or More Races - Non Hispanic 3,018 2.77%