The following are the zip codes in the municipalities of Occidental Mindoro.
| Region | Provinces | City/Municipality | Zip Code |
| Region 4B (MIMAROPA) | Occidental Mindoro | Tilik | 5110 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Abra de Ilog | 5108 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Calintaan | 5102 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Looc | 5111 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Lubang | 5109 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Magsaysay | 5101 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Mamburao | 5106 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Palauan | 5107 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Rizal | 5103 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Sablayan | 5104 |
| Region 4B (MIMAROPA) | Occidental Mindoro | San Jose | 5100 |
| Region 4B (MIMAROPA) | Occidental Mindoro | Sta. Cruz | 5105 |
