Entire Region 6
The I-69 Thumb Region encompasses the counties of Genesee, Huron, Lapeer, Sanilac, Shiawassee, St. Clair, and Tuscola, representing a diverse population in urban and rural areas. The landscape ranges from farmland and small towns to larger cities and lakefront properties, with a mix of business activities equally wide and varied. There are four major highways in the region (I-69, I-75, US23, and I-94), as well as Bishop International airport, and the Blue Water Bridge from Port Huron to Canada.