
Ottoville
- County:
- Putnam County
- County Seat:
- No
- Area (mi²):
- 0.947
- State:
- Ohio
Ottoville is a village located in Putnam County, Ohio. Ottoville has a 2025 population of 971. Ottoville is currently growing at a rate of 0.1% annually and its population has increased by 0.31% since the most recent census, which recorded a population of 968 in 2020.
The average household income in Ottoville is $94,672 with a poverty rate of 3.26%. The median age in Ottoville is 42.4 years: 42.1 years for males, and 43.4 years for females.