| Place Name | Custer Township (Sanilac County) |
| Place Type | Township |
| ZIP Code(s) | 48419 48427 48471 |
| County | Sanilac County |
| Area Code(s) | 810 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 778 |
| Majority Ethnicity | White 95.93% |
| US Congressional District(s) | Michigan 10th |
| State House Districts | 83 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.93% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.07% |