| Name | Sanilac County |
| State | Michigan |
| FIPS Code | 26151 |
| County Seat | Sandusky |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 40,434 |
| Population Growth Rate(2020-2024) | -0.45% |
| Majority Ethnicity | White 95% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Strongly Republican:+24 |
| Unemployment Rate (May 2026) | 6.9% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 810 / 989 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95% |
| African American | 0.41% |
| Hispanic | 4.24% |
| Asian | 0.18% |
| Native American | 0.15% |
| Hawaiin/Pacific Islander | 0.02% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 91.74% |
| African American | 0.32% |
| Hispanic | 4.91% |
| Asian | 0.43% |
| Native American | 0.19% |
| Hawaiin/Pacific Islander | 0% |