Post Offices List in Michigan City City, Indiana:
| Marquette Mall Post Office | 450 St John Rd, Michigan City, IN 46360 |
| Michigan City Post Office | 303 Washington St, Michigan City, IN 46360 |
| Marquette Mall Post Office | 450 St John Rd, Michigan City, IN 46360 |
| Michigan City Post Office | 303 Washington St, Michigan City, IN 46360 |