Mount Briar is an unincorporated community and census-designated place in Washington County, Maryland, United States. Its population was 160 as of the 2010 census.

Geography

According to the U.S. Census Bureau, the community has an area of 0.623 square miles (1.61 km), all land.

Demographics

Historical population

Census	Pop.	Note	%±
2020	170		—
U.S. Decennial Census