Post Offices List in Bay City City, Michigan:
| Bay City Post Office | 1000 Washington Ave, Bay City, MI 48708 |
| Station A Post Office | 300 E John St, Bay City, MI 48706 |
| Bay City Post Office | 1000 Washington Ave, Bay City, MI 48708 |
| Station A Post Office | 300 E John St, Bay City, MI 48706 |