| Place Name | Onsted |
| Place Type | Village |
| ZIP Code(s) | 49265 |
| County | Lenawee County |
| Area Code(s) | 517 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 828 |
| Population Growth Rate (2010-19) | 7.74% |
| Majority Ethnicity | White 94.05% |
| Metro/Micro Stats Area | Adrian, MI |
| US Congressional District(s) | Michigan 7th |
| State House Districts | 65 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.05% |
| African American | 4.34% |
| Hispanic | 0.09% |
| Asian | 0.43% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.11% |