Otter township
- County:
- Cowley County
- County Seat:
- No
- Area (mi²):
- 51.772
- State:
- Kansas
Otter township is located in Cowley County, Kansas. Otter township has a 2025 population of 30. Otter township is currently declining at a rate of -3.23% annually and its population has decreased by -9.09% since the most recent census, which recorded a population of 33 in 2020.
The median age in Otter township is 47.5 years: 0 years for males, and 0 years for females.