Grand Island township
- County:
- Alger County
- County Seat:
- No
- Area (mi²):
- 22.479
- State:
- Michigan
Grand Island township is located in Alger County, Michigan. Grand Island township has a 2026 population of 31. Grand Island township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 31 in 2020.
The median household income in Grand Island township is $109,375 with a poverty rate of 0%. The median age in Grand Island township is 56.7 years: 60.5 years for males, and 56.3 years for females. For every 100 females there are 76.9 males.