| Business | Phone |
| Mackinac County District Court 100 N Marley St, Saint Ignace 49781 | (906) 643-8554 |
| Mackinac County Friend-Court 100 S Marley St 110, Saint Ignace 49781 | (906) 643-7336 |
| Mackinac County Probate Court 100 S Marley St, Saint Ignace 49781 | (906) 643-8858 |
| Mackinac County Probate Judge 100 S Marley St, Saint Ignace 49781 | (906) 643-7303 |