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County Information



Some of the cities, towns, and places in StClair County are Abbottsford, Adair, Algonac, Allenton, Anchorville, Atkins, Avalon Beach, Avoca, Bedore, Belle River, Berlin, Berville, Blaine, Broadbridge Station, Brockway, Burtchville, Capac, Casco, Cherry Beach, China, Clay, Clays Landing, Clyde, Columbus, Copeland Corner, Cottrellville, East China, Emmett, Fair Haven, Fargo, Forster, Fort Gratiot, Gardendale, Goodells, Grande Pointe, Grant, Greenwood, Hawthorne, Ira, Jeddo, Keewahdin, Kenockee, Kimball, Lakeport, Lambs, Lesterville, Lynn, Maple Leaf, Marine City, Martindale Beach, Marysville, Memphis, Miller, Muirs, Mussey, Muttonville, North Lakeport, North Street, Pearl Beach, Perch Point, Peters, Pointe aux Tremble, Port Huron, Rattle Run, Richmond, Riley, Riley Center, Riverside, Roberts Landing, Ruby, Sans Souci, Smiths Creek, Snyderville, South Park, Sparlingville, St. Clair, Starville, Tappan, Thornton, Wadhams, Wales, West Tappan, Yale

StClair County  Image

St. Clair County is a county located in the U.S. state of Michigan and bordering the west bank of the St. Clair River. As of the 2020 census, the population was 160,383. It is the 13th-most populous county in the state. The county seat is Port Huron, located at the north end of the St. Clair River at Lake Huron. The county was created September 10, 1820, and its government was organized in 1821. It is located northeast of Detroit. Geographically, it lies in the Thumb area of eastern Michigan.