St. Clair County, Michigan
St. Clair County is a county in Michigan with an estimated population of 159,874 in 2023. 8 cities, towns and Census places in it are indexed here.
Largest places in St. Clair County
Port Huron 28,383Marysville 9,917St. Clair 5,887Algonac 4,125Marine City 4,017Capac 1,968Yale 1,890Emmett 236
About St. Clair County
St. Clair County is one of the counties of Michigan. County governments in Michigan handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.