
Mount Briar
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 0.623
- State:
- Maryland
Mount Briar is a CDP located in Washington County, Maryland. Mount Briar has a 2025 population of 179. Mount Briar is currently growing at a rate of 0.56% annually and its population has increased by 52.99% since the most recent census, which recorded a population of 117 in 2020.
The average household income in Mount Briar is $166,771 with a poverty rate of 7.83%. The median age in Mount Briar is 47.2 years: 40.4 years for males, and 47.6 years for females.