| Place Name | Cottrellville Township |
| Place Type | Township |
| ZIP Code(s) | 48001 48039 |
| County | Saint Clair County |
| Area Code(s) | 810 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 3,411 |
| Majority Ethnicity | White 99.62% |
| Metro/Micro Stats Area | Detroit-Warren-Dearborn, MI |
| US Congressional District(s) | Michigan 10th |
| State House Districts | 81 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.62% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.38% |