
Au Sable
- County:
- Alcona County
- County Seat:
- No
- Area (mi²):
- 2.102
- State:
- Michigan
Au Sable is a CDP located in Alcona County, Michigan. Au Sable has a 2025 population of 1,733. Au Sable is currently growing at a rate of 1.29% annually and its population has increased by 7.04% since the most recent census, which recorded a population of 1,619 in 2020.
The average household income in Au Sable is $54,695 with a poverty rate of 13.94%. The median age in Au Sable is 45.8 years: 48.1 years for males, and 45.7 years for females.