| Place | Post Code |
|---|---|
| Bagacay, Buenavista | 4904 |
| Bagtingon, Buenavista | 4904 |
| Barangay I, Buenavista | 4904 |
| Barangay II, Buenavista | 4904 |
| Barangay III, Buenavista | 4904 |
| Barangay IV, Buenavista | 4904 |
| Bicas-Bicas, Buenavista | 4904 |
| Caigangan, Buenavista | 4904 |
| Daykitin, Buenavista | 4904 |
| Libas, Buenavista | 4904 |
| Malbog, Buenavista | 4904 |
| Sihi, Buenavista | 4904 |
| Timbo, Buenavista | 4904 |
| Tungib-Lipata, Buenavista | 4904 |
| Yook, Buenavista | 4904 |
| All postal codes in Marinduque | |
|---|---|
| Boac, Marinduque | |
| Buenavista, Marinduque | |
| Gasan, Marinduque | |
| Mogpog, Marinduque | |
| Santa Cruz, Marinduque | |
| Torrijos, Marinduque | |