
Brethren
- County:
- Manistee County
- County Seat:
- No
- Area (mi²):
- 1.279
- State:
- Michigan
Brethren is a CDP located in Manistee County, Michigan. Brethren has a 2025 population of 388. Brethren is currently declining at a rate of -0.26% annually and its population has decreased by -5.6% since the most recent census, which recorded a population of 411 in 2020.
The average household income in Brethren is $65,151 with a poverty rate of 17.04%. The median age in Brethren is 41.3 years: 43.3 years for males, and 36.9 years for females.