
Muir
- County:
- Ionia County
- County Seat:
- No
- Area (mi²):
- 0.712
- State:
- Michigan
Muir is a village located in Ionia County, Michigan. Muir has a 2025 population of 648. Muir is currently growing at a rate of 0.15% annually and its population has increased by 0.93% since the most recent census, which recorded a population of 642 in 2020.
The average household income in Muir is $58,477 with a poverty rate of 7.19%. The median age in Muir is 33.8 years: 37.2 years for males, and 33 years for females.