| Place Name | Onekama Township |
| Place Type | Township |
| ZIP Code(s) | 49614 49660 49675 |
| County | Manistee County |
| Area Code(s) | 231 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 1,285 |
| Majority Ethnicity | White 99.76% |
| US Congressional District(s) | Michigan 1st |
| State House Districts | 101 |
| State Senate Districts | 35 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.76% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.24% |