| Place | Post Code |
|---|---|
| Cafe, Santa Barbara | 5002 |
| Calaboa Este, Santa Barbara | 5002 |
| Calaboa Oeste, Santa Barbara | 5002 |
| Camambugan, Santa Barbara | 5002 |
| Canipayan, Santa Barbara | 5002 |
| Conaynay, Santa Barbara | 5002 |
| Daga, Santa Barbara | 5002 |
| Dalid, Santa Barbara | 5002 |
| Duyanduyan, Santa Barbara | 5002 |
| Gen. Martin T. Delgado, Santa Barbara | 5002 |
| Guno, Santa Barbara | 5002 |
| Inangayan, Santa Barbara | 5002 |
| Jibao-An, Santa Barbara | 5002 |
| Lacadon, Santa Barbara | 5002 |
| Lanag, Santa Barbara | 5002 |
| Lupa, Santa Barbara | 5002 |
| Magancina, Santa Barbara | 5002 |
| Malawog, Santa Barbara | 5002 |
| Mambuyo, Santa Barbara | 5002 |
| Manhayang, Santa Barbara | 5002 |
| Miraga-Guibuangan, Santa Barbara | 5002 |
| Nasugban, Santa Barbara | 5002 |
| Omambog, Santa Barbara | 5002 |
| Pal-Agon, Santa Barbara | 5002 |
| Pungsod, Santa Barbara | 5002 |
| San Sebastian, Santa Barbara | 5002 |