| Business | Phone |
| Montmorency Cnty Veterans Svc 12265 M 32, Atlanta 49709 | (989) 785-8043 |
| Atlanta Senior Citizens 11780 M 33, Atlanta 49709 | (989) 785-3932 |
| Montmorency Cnty District Ct 12265 M 32, Atlanta 49709 | (989) 785-8035 |
| Montmorency Cnty Coordinator 12265 M 32, Atlanta 49709 | (989) 785-8000 |
| Soil Conservation Dept 12285 Jerome St, Atlanta 49709 | (989) 785-4083 |
| Protective Services For Adults M 32 W, Atlanta 49709 | (989) 785-4218 |
| Montmorency County Maintenance 12265 M 32, Atlanta 49709 | (989) 785-8093 |
| Montmorency Oscoda Landfill 6999 County Road 487, Atlanta 49709 | (989) 785-3848 |
| Briley Twp Office 11331 West St, Atlanta 49709 | (989) 785-4050 |
| Montmorency County Housing 12285 Jerome St, Atlanta 49709 | (989) 785-4616 |
| Montmorency County Road Comm 11445 M 32, Atlanta 49709 | (989) 785-3334 |
| Loud Twp Office 3910 M 33, Atlanta 49709 | (989) 785-3263 |
| Montmorency Cnty Equalization 12265 M 32, Atlanta 49709 | (989) 785-8046 |
| Montmorency Equalization Dept 12265 M 32, Atlanta 49709 | (989) 785-3411 |
| Township Office 11331 West St, Atlanta 49709 | (989) 785-4186 |
| Montmorency Cnty Register-Deed 12265 M 32, Atlanta 49709 | (989) 785-8079 |
| Montmorency County Prosecutor 12265 M 32, Atlanta 49709 | (989) 785-8070 |
| Montmorency County Co-Op Ext 12265 M 32, Atlanta 49709 | (989) 785-8013 |
| Montmorency County Juvenile 12265 M 32, Atlanta 49709 | (989) 785-8059 |