Ortonville township
- County:
- Big Stone County
- County Seat:
- No
- Area (mi²):
- 13.446
- State:
- Minnesota
Ortonville township is located in Big Stone County, Minnesota. Ortonville township has a 2026 population of 88. Ortonville 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 88 in 2020.
The median age in Ortonville township is 44.7 years: 50 years for males, and 19.3 years for females. For every 100 females there are 183.3 males.