| Place | Post Code |
|---|---|
| Buliran, San Antonio | 3108 |
| Cama Juan, San Antonio | 3108 |
| Julo, San Antonio | 3108 |
| Lawang Kupang, San Antonio | 3108 |
| Luyos, San Antonio | 3108 |
| Maugat, San Antonio | 3108 |
| Panabingan, San Antonio | 3108 |
| Papaya, San Antonio | 3108 |
| Poblacion, San Antonio | 3108 |
| San Francisco, San Antonio | 3108 |
| San Jose, San Antonio | 3108 |
| San Mariano, San Antonio | 3108 |
| Santa Barbara, San Antonio | 3108 |
| Santa Cruz, San Antonio | 3108 |
| Santo Cristo, San Antonio | 3108 |
| Tikiw, San Antonio | 3108 |