Homes for sale in. Clair CountySt. Clair County is a county located in Michigan bordering the St.Clair River. As of the 2010 census, the population was 163,040. It is the 13th-most populous county in the state, and 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 According to the U.S. Census Bureau, the county has a total area of 837 square miles (2,170 kmn2),nof which 721 square miles (1,870 kmn2) is land and 115 square miles (300 kmn2) (14%) is water. St. Clair County is one of five counties that form the peninsula, known as the Thumb, that projects into Lake Huron. St. Clair County is closely connected in terms of economy with its neighbors,n Metropolitan Detroit and Sanilac County in Michigan, and Lambton County in Ontario, Canada. Saint Clair County is the principal county in the The Blue Water Area, a sub region of the Thumb.
St. Clair County official website: https://www.stclaircounty.org
Pure Michigan website: http://www.michigan.org/