| Post Office | Muskegon |
| Division | Muskegon |
| Pincode | 49442 |
| Post Office | Muskegon |
| Division | Muskegon |
| Pincode | 49441 |
| Post Office | Muskegon |
| Division | Muskegon |
| Pincode | 49444 |
| Post Office | Muskegon |
| Division | Muskegon |
| Pincode | 49445 |
| Post Office | Twin Lake |
| Division | Muskegon |
| Pincode | 49457 |
| Post Office | Whitehall |
| Division | Muskegon |
| Pincode | 49461 |