Cities/towns in St. Clair, Michigan

• Algonac (2 historic properties)
• Brookway Township (1 historic property)
• China Township (1 historic property)
• Ira Township (1 historic property)
• Marine City (3 historic properties)
• Pearl Beach (2 historic properties)

• Port Huron (12 historic properties)
• Riley Township (1 historic property)
• Saint Clair Township (1 historic property)
• St. Clair (1 historic property)
• Yale (1 historic property)