Post Offices List in Arenac County, Michigan:
| Alger Post Office | 1454 Joy St, Alger, MI 48610 |
| Au Gres Post Office | 109 W Huron Rd, Au Gres, MI 48703 |
| Omer Post Office | 100 Bridge St, Omer, MI 48749 |
| Standish Post Office | 120 S Grove St, Standish, MI 48658 |
| Sterling Post Office | 420 W State St, Sterling, MI 48659 |