Port Huron is a city in and the county seat of St. Clair County, Michigan, United States. The population was 28,983 at the 2020 census. The city is bordered on the west by Port Huron Township, but the

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 c