
Ontonagon
- County:
- Ontonagon County
- County Seat:
- Yes
- Area (mi²):
- 3.693
- State:
- Michigan
Ontonagon is a village located in Ontonagon County, Michigan. Ontonagon has a 2025 population of 1,294. It is also the county seat of .Ontonagon is currently growing at a rate of 0.47% annually and its population has increased by 2.45% since the most recent census, which recorded a population of 1,263 in 2020.
The average household income in Ontonagon is $56,266 with a poverty rate of 11.77%. The median age in Ontonagon is 62.5 years: 61 years for males, and 62.6 years for females.