
Otter township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 35.965
- State:
- Iowa
Otter township is located in Warren County, Iowa. Otter township has a 2025 population of 1,168. Otter 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 0 in 2020.
The average household income in Otter township is $138,249 with a poverty rate of 4.37%. The median age in Otter township is 42.7 years: 43.3 years for males, and 41.4 years for females.