| Place | Post Code |
|---|---|
| Banat-E, San Isidro | 6535 |
| Basud, San Isidro | 6535 |
| Bawod, San Isidro | 6535 |
| Biasong, San Isidro | 6535 |
| Bunacan, San Isidro | 6535 |
| Busay, San Isidro | 6535 |
| Cabungaan, San Isidro | 6535 |
| Capiñahan, San Isidro | 6535 |
| Crossing, San Isidro | 6535 |
| Daja-Daku, San Isidro | 6535 |
| Daja-Diot, San Isidro | 6535 |
| Hacienda Maria, San Isidro | 6535 |
| Linao, San Isidro | 6535 |
| Matungao, San Isidro | 6535 |
| Paril, San Isidro | 6535 |
| San Jose, San Isidro | 6535 |
| San Miguel, San Isidro | 6535 |
| Taglawigan, San Isidro | 6535 |
| Tinago, San Isidro | 6535 |