St. Clair, Michigan
Seal of Michigan
St. Clair · St. Clair County, Michigan
Population 5,581 (est. 2026: ~5,600)
Source: Census ACS 2023 · ACS 2023 + 0.07% annual growth projection
# St. Clair, Michigan St. Clair County, Michigan · Population 5,464

Contact this office — local service-area, municipal code pointer, and corrections form.