District 2
Benzie, Grand Traverse, Kalkaska, Lake, Leelanau, Manistee, Mason, Missaukee, Osceola, Wexford

District 3
Alcona, Arenac, Clare, Crawford, Gladwin, Iosca, Ogemaw, Oscoda, Roscommon

District 4
Kent, Mecosta, Muskegon, Newaygo, Oceana, Ottawa

District 5
Bay, Clinton, Gratiot, Ionia, Isabella, Midland, Montcalm, Saginaw, Shiawassee

District 6
Genesee, Huron, Lapeer, Sanilac, St. Clair, Tuscola

District 7
Allegan, Barry, Berrien, Cass, Kalamazoo, St. Joseph, Van Buren

District 8
Branch, Calhoun, Eaton, Hillsdale, Ingham, Jackson

District 9
Lenawee, Monroe Washtenaw, Wayne

District 10
Livingston, Macomb, Oakland

District 11
Alger, Baraga, Chippewa, Delta, Dickinson, Geogebic, Houghton, Iron, Luce, Mackinac, Marquette, Menominee, Ontonagon, Schoolcraft

District 12
Alpena, Antrim, Charlevoix Cheboygon, Emmet, Montmorency, Otsego, Presque Isle