St. Clair County Government--airport International 177 Ash Dr Kimball, MI 48074 Phone : (810) 364-6890 St. Clair County Government--airport International Business Category Government Offices-County Airports Transportation Programs Government Offices & Public Schools St Clair County Of--airport Terminal Building 177 Ash Dr Port Huron, MI 48060 Phone : (810) 364-6890 Business Category Government Offices-County Airports Government Offices & Public Schools