| Place Name | Ontonagon Township |
| Place Type | Township |
| ZIP Code(s) | 49925 49948 49953 |
| County | Ontonagon County |
| Area Code(s) | 906 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 2,023 |
| Majority Ethnicity | White 97.01% |
| US Congressional District(s) | Michigan 1st |
| State House Districts | 110 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.01% |
| African American | 0.85% |
| Hispanic | 0.15% |
| Asian | 1% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1% |