Ontonagon County, website

Ontonagon County in Michigan uses area code 906. On this page, you will see the physical addresses and contact information of the most relevant government agencies in Ontonagon County, including the Clerk’s Office, Sheriff’s Office, and the Health Department.

Sheriff’s Office

620 Conglomerate St., Ontonagon, MI 49953
Phone: (906) 884-4901

County Court

725 Greenland Rd., Ontonagon, MI 49953
Phone: (906) 884-2865

District Court

725 Greenland Road
Ontonagon, Michigan 49953

Phone: (906) 884-2887

Fax: (906) 884-2865

Circuit Court

725 Greenland Road
Ontonagon, Michigan 49953

Phone: (906) 884-4255

Fax: (906) 884-6796

County Clerk

725 Greenland Road
Ontonagon, MI 49953
Phone: (906) 884-4699

Treasurer

725 Greenland Rd., Ontonagon, MI 49953

  Phone: (906) 884-4665

Ontonagon County Jail

620 Conglomerate Street, Ontonagon, MI 49953

Phone: (906) 884-4901

Emergency Services

35932 Airport Road
Ontonagon, MI 49953

Phone: (906) 884-4980

Cell: (906) 390-0309

Fire Department

320 River St., Ontonagon, MI 49953

  Phone: (906) 884-2131

Social Services

730 S. 7th St., Ontonagon, MI 49953

  Phone: (906) 884-4951

Health Department

408 Copper St., Ontonagon, MI 49953

Phone: (906) 884-4485