Explore St. Clair County
Port Huron, the county seat, anchors St. Clair County in the Blue Water Area of Michigan’s Lower Peninsula. Discover the communities, local businesses, outdoor adventures, restaurants, events, and hidden gems that make St. Clair County unique.
Communities
Choose a community to begin exploring.
Port Huron, the county seat, sits at the southern tip of Lake Huron where the St. Clair River begins — home to the Blue Water Bridge crossing into Sarnia, Ontario. Marysville and St. Clair line the river’s western shore, while Marine City and Algonac, historic boat-building towns, anchor the county’s southern reaches near Lake St. Clair.
Discover St. Clair County
🍽️ Restaurants
From waterfront dining along the St. Clair River in Port Huron and Algonac to hometown favorites in Marysville, St. Clair, and Marine City, find local dining favorites throughout the county.
🏨 Lodging
Hotels and inns — from Port Huron’s riverfront accommodations to cozy stays in Marine City, St. Clair, and Algonac.
🌲 Outdoor Recreation
Watch thousand-foot freighters pass on the St. Clair River, enjoy Lake Huron beaches, and explore shoreline parks like Port Huron’s Lakeside Park.
🛍️ Local Businesses
Shop local and support the shops and services of Port Huron, Marysville, St. Clair, Marine City, and Algonac.
📅 Events
Port Huron’s Blue Water Fest, the start of the Bayview Mackinac Race, and community festivals throughout the county each year.
⭐ Hidden Gems
Discover places that locals love — from the Fort Gratiot Lighthouse, Michigan’s oldest lighthouse, to quiet river overlooks in Marine City and Algonac.
Featured Communities
From Port Huron, the county seat at the foot of the Blue Water Bridge, to the river towns of Marysville, St. Clair, Marine City, and historic Algonac, St. Clair County’s communities each offer their own Blue Water character.
Help Build St. Clair County
Know a great local business, event, attraction, or hidden gem? Help us build the most complete community guide by sharing what makes St. Clair County special.