| Place | Post Code |
|---|---|
| Alawihao, Daet | 4600 |
| Awitan, Daet | 4600 |
| Bagasbas, Daet | 4600 |
| Barangay I, Daet | 4600 |
| Barangay II, Daet | 4600 |
| Barangay III, Daet | 4600 |
| Barangay IV, Daet | 4600 |
| Barangay V, Daet | 4600 |
| Barangay VI, Daet | 4600 |
| Barangay VII, Daet | 4600 |
| Barangay VIII, Daet | 4600 |
| Bibirao, Daet | 4600 |
| Borabod, Daet | 4600 |
| Calasgasan, Daet | 4600 |
| Camambugan, Daet | 4600 |
| Cobangbang, Daet | 4600 |
| Dogongan, Daet | 4600 |
| Gahonon, Daet | 4600 |
| Gubat, Daet | 4600 |
| Lag-On, Daet | 4600 |
| Magang, Daet | 4600 |
| Mambalite, Daet | 4600 |
| Mancruz, Daet | 4600 |
| Pamorangon, Daet | 4600 |
| San Isidro, Daet | 4600 |