St. Clair County is located in the state of Michigan, bordered by Lake Huron to the east. It is known for its scenic waterfront, parks, and recreational activities. The county seat is Port Huron, which serves as a hub for commerce and tourism in the region. The county has a diverse population and offers various services, including education and healthcare. St. Clair County is also home to several historical sites and cultural attractions, making it a vibrant community for residents and visitors alike.