
Brier
- County:
- Snohomish County
- County Seat:
- No
- Area (mi²):
- 2.196
- State:
- Washington
Brier is a city located in Snohomish County, Washington. Brier has a 2025 population of 6,394. Brier is currently declining at a rate of -0.51% annually and its population has decreased by -2.5% since the most recent census, which recorded a population of 6,558 in 2020.
The average household income in Brier is $159,604 with a poverty rate of 3.13%. The median age in Brier is 45.9 years: 47.8 years for males, and 45.6 years for females.