Home > Counties > Upper Peninsula > Ontonagon County
Ontonagon County was created in 1843 from Chippewa and Mackinac counties. It was organized in 1853.
County clerk's office Ontonagon County Clerk 725 Greenland Road, Courthouse Ontonagon, MI 49953 Telephone: (906) 884-4255 Fax: (906) 884-2916
Online resources