McMillan township
- County:
- Ontonagon County
- County Seat:
- No
- Area (mi²):
- 70.9
- State:
- Michigan
McMillan township is located in Ontonagon County, Michigan. McMillan township has a 2026 population of 405. McMillan township is currently declining at a rate of -0.98% annually and its population has decreased by -0.49% since the most recent census, which recorded a population of 407 in 2020.
The median household income in McMillan township is $49,286 with a poverty rate of 16.02%. The median age in McMillan township is 62.5 years: 62.3 years for males, and 62.6 years for females. For every 100 females there are 103.5 males.