| Name | Saint Clair County |
| State | Michigan |
| FIPS Code | 26147 |
| County Seat | Port Huron |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 160,280 |
| Population Growth Rate(2020-2024) | -0.07% |
| Majority Ethnicity | White 93.28% |
| Public School Majority Ethnicity | White 86% |
| Partisan Voting Index | Republican:+17 |
| Unemployment Rate (May 2026) | 6.2% |
| Area Code(s) | 810 / 586 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 93.28% |
| African American | 2.36% |
| Hispanic | 3.66% |
| Asian | 0.54% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 85.68% |
| African American | 3.7% |
| Hispanic | 4.46% |
| Asian | 0.52% |
| Native American | 0.32% |
| Hawaiin/Pacific Islander | 0.06% |