Aishcum County (1840 - Present)
Alger County (1885 - Present)
Allegan County (1831 - Present)
Anamickee County (1840 - Present)
Arenac County (1831 - Present)
Baraga County (1875 - Present)
Barry County (1829 - Present)
Bay County (1857 - Present)
Benzie County (1863 - Present)
Berrien County (1829 - Present)
Bleeker County (1861 - Present)
Branch County (1829 - Present)
Calhoun County (1829 - Present)
Cass County (1829 - Present)
Cheboygan County (1840 - Present)
Cheonoquet County (1840 - Present)
Chippewa County (1827 - Present)
Clinton County (1831 - Present)
Delta County (1843 - Present)
Dickinson County (1891 - Present)
Eaton County (1829 - Present)
Genesee County (1835 - Present)
Gladwin County (1831 - Present)
Gogebic County (1887 - Present)
Grand Traverse County (1851 - Present)
Gratiot County (1831 - Present)
Hillsdale County (1829 - Present)
Houghton County (1845 - Present)
Huron County (1840 - Present)
Ingham County (1829 - Present)
Ionia County (1831 - Present)
Iron County (1885 - Present)
Isabella County (1831 - Present)
Isle Royale County (1875 - 1897)
Jackson County (1829 - Present)
Kalamazoo County (1829 - Present)
Kanotin County (1840 - Present)
Kautawaubet County (1840 - Present)
Kaykakee County (1840 - Present)
Kent County (1831 - Present)
Keskkauko County (1840 - Present)
Keweenaw County (1861 - Present)
Lapeer County (1822 - Present)
Leelanau County (1840 - Present)
Lenawee County (1822 - Present)
Livingston County (1833 - Present)
Luce County (1887 - Present)
Macomb County (1818 - Present)
Manistee County (1840 - Present)
Manitou County (1855 - 1895)
Marquette County (1843 - Present)
Mecosta County (1840 - Present)
Meegisee County (1840 - Present)
Michilimackinac County (1818 - Present)
Midland County (1831 - Present)
Mikenauk County (1840 - Present)
Missaukee County (1840 - Present)
Monroe County (1817 - Present)
Montcalm County (1831 - Present)
Muskegon County (1859 - Present)
Negwegon County (1840 - Present)
Newaygo County (1840 - Present)
Notipekago County (1840 - Present)
Oakland County (1820 - Present)
Oceana County (1831 - Present)
Ogemaw County (1840 - Present)
Okkuddo County (1840 - Present)
Omeena County (1840 - 1853)
Ontonagon County (1843 - Present)
Oscoda County (1840 - Present)
Ottawa County (1831 - Present)
Presque Isle County (1840 - Present)
Saginaw County (1822 - Present)
Sanilac County (1822 - Present)
Schoolcraft County (1843 - Present)
Shawono County (1840 - Present)
Shiawassee County (1822 - Present)
St Clair County (1821 - Present)
St Joseph County (1829 - Present)
Tonedagana County (1840 - Present)
Tuscola County (1840 - Present)
Unwattin County (1840 - Present)
Van Buren County (1829 - Present)
Wabassee County (1840 - Present)
Washtenaw County (1822 - Present)
Wayne County (1815 - Present)
Wyandot County (1840 - 1853)