McKinley township
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 34.392
- State:
- South Dakota
McKinley township is located in Marshall County, South Dakota. McKinley township has a 2026 population of 27. McKinley township is currently growing at a rate of 3.85% annually and its population has increased by 8% since the most recent census, which recorded a population of 25 in 2020.
The median age in McKinley township is 21.5 years: 0 years for males, and 19.8 years for females. For every 100 females there are 113.5 males.