| Place Name | Ottawa Township |
| Place Type | Township |
| ZIP Code(s) | 45856 45875 |
| County | Putnam County |
| Area Code(s) | 419,567 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 7,989 |
| Majority Ethnicity | White 90.61% |
| US Congressional District(s) | Ohio 5th |
| State House Districts | 81 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.61% |
| African American | 1.35% |
| Hispanic | 0.32% |
| Asian | 0.22% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.49% |