Bay Region: Arena, Bay, Clare, Genessee, Gladwin, Gratiot, Huron, Isabella, Lapeer, Midland, Saginaw, Sanilac, and Tuscola counties

Grand Region: Ionia, Kent, Mecosta, Montcalm, Muskegon, Newaygo, Oceana, and Ottawa counties

Metro Region: Macomb, Oakland, St. Clair, and Wayne counties

North Region: Alcona, Alpena, Antrim, Benzie, Cadillac, Charleviox, Cheboygan, Crawford, Emmet, Grand Traverse, Iosco, Kalkaska, Lake, Leelanau, Manistee, Mason, Missaukee, Montmorency, Ogemaw, Osceola, Oscoda, Otsego, Presque Isle, and Roscommon counties

Southwest Region: Allegan, Barry, Berrien, Branch, Calhoun, Cass, Kalamazoo, St. Joseph, and Van Buren counties

Superior Region: Michigan's Upper Peninsula

University Region: Clinton, Eaton, Hillsdale, Ingham, Jackson, Lenawee, Livingston, Monroe, Shiawassee, and Washtenaw counties