Population By Race and Ethnicity in Washington County, MD in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 150,699 population of Washington County, Maryland comprised of 8,193 people who identified as Hispanic (5.44%), and 142,506 people who identified as Non-Hispanic (94.56%).

Race: The White Alone population was the largest racial group in Washington County, Maryland with a population of 124,222 (82.43%); Black or African American Alone population was the second largest racial group with a population of 18,290 (12.14%); and Two Or More Races was the third largest racial group with a population of 4,683 (3.11%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Washington County, Maryland in 2018, with a population of 117,751 (78.14%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 17,406 (11.55%); and the third largest ethnic group was White Alone - Hispanic with a population of 6,471 (4.29%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Washington, Maryland.

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

See this for other years:
Hispanics and Non Hispanics in Washington County, MD in 2018
Total Population:
Race in Washington County, MD in 2018
Total Population:
Ethnicity in Washington County, MD in 2018
Total Population:
Population By Race in Washington , MD in 2018
Race Population Percentage
Black or African American Alone 18,290 12.14%
White Alone 124,222 82.43%
American Indian and Alaska Native Alone 486 0.32%
Asian Alone 2,882 1.91%
Native Hawaiian And Pacific Islander Alone 136 0.09%
Two Or More Races 4,683 3.11%
Population By Ethnicity in Washington , MD in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 884 0.59%
White Alone - Hispanic 6,471 4.29%
American Indian and Alaska Native Alone - Hispanic 224 0.15%
Asian Alone - Hispanic 93 0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic 38 0.03%
Two Or More Races - Hispanic 483 0.32%
Black or African American Alone - Non Hispanic 17,406 11.55%
White Alone - Non Hispanic 117,751 78.14%
American Indian and Alaska Native Alone - Non Hispanic 262 0.17%
Asian Alone - Non Hispanic 2,789 1.85%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 98 0.07%
Two Or More Races - Non Hispanic 4,200 2.79%