33 — 37 códigos en 37 localidades (Filipinas).
| Código postal | Localidad / Distrito | Provincia / Municipio | Coordenadas |
|---|---|---|---|
| City of Ilagan | Province of Isabela · Cagayan Valley | 16.875, 121.7643 | |
| Gamu | Province of Isabela · Cagayan Valley | 17.0497, 121.836 | |
| Naguillan | Province of Isabela · Cagayan Valley | 16.9874, 121.9613 | |
| Reina Mercedes | Province of Isabela · Cagayan Valley | 17.0018, 121.7863 | |
| Luna | Province of Isabela · Cagayan Valley | 17.0333, 121.8333 | |
| City of Cauayan | Province of Isabela · Cagayan Valley | 16.875, 121.7643 | |
| Alicia | Province of Isabela · Cagayan Valley | 16.7794, 121.6973 | |
| Angadanan | Province of Isabela · Cagayan Valley | 16.7553, 121.7483 | |
| San Guillermo | Province of Isabela · Cagayan Valley | 16.8003, 121.7722 | |
| Echague | Province of Isabela · Cagayan Valley | 16.7051, 121.6763 | |
| San Isidro | Province of Isabela · Cagayan Valley | 16.8709, 121.7683 | |
| Santiago CIty | Province of Isabela · Cagayan Valley | 16.7891, 121.6342 | |
| Cordon | Province of Isabela · Cagayan Valley | 16.6744, 121.4658 | |
| Jones | Province of Isabela · Cagayan Valley | 16.5571, 121.7029 | |
| San Agustin | Province of Isabela · Cagayan Valley | 16.5178, 121.7454 | |
| Cabatuan | Province of Isabela · Cagayan Valley | 16.9566, 121.6685 | |
| Aurora | Province of Isabela · Cagayan Valley | 16.9906, 121.6366 | |
| San Manuel | Province of Isabela · Cagayan Valley | 16.8687, 121.5981 | |
| San Mateo | Province of Isabela · Cagayan Valley | 16.8821, 121.5869 | |
| Ramon | Province of Isabela · Cagayan Valley | 16.7842, 121.535 | |
| Roxas | Province of Isabela · Cagayan Valley | 17.1189, 121.6201 | |
| Quirino | Province of Isabela · Cagayan Valley | 17.0282, 121.8297 | |
| Burgos | Province of Isabela · Cagayan Valley | 17.0891, 121.7025 | |
| Mallig | Province of Isabela · Cagayan Valley | 17.2128, 121.6107 | |
| Quezon | Province of Isabela · Cagayan Valley | 17.313, 121.6065 | |
| Tumauini | Province of Isabela · Cagayan Valley | 17.2766, 121.8085 | |
| Delfin Albano | Province of Isabela · Cagayan Valley | 17.3081, 121.7775 | |
| Sto. Tomas | Province of Isabela · Cagayan Valley | 17.2208, 121.7363 | |
| Cabagan | Province of Isabela · Cagayan Valley | 17.4278, 121.7695 | |
| San Pablo | Province of Isabela · Cagayan Valley | 17.2125, 121.9015 | |
| Sta. Maria | Province of Isabela · Cagayan Valley | 16.9879, 122.182 | |
| Benito Soliven | Province of Isabela · Cagayan Valley | 16.9815, 121.9599 | |
| San Mariano | Province of Isabela · Cagayan Valley | 16.9826, 122.014 | |
| Maconacon | Province of Isabela · Cagayan Valley | 17.3875, 122.2415 | |
| Palanan | Province of Isabela · Cagayan Valley | 17.0606, 122.43 | |
| Divilacan | Province of Isabela · Cagayan Valley | 16.9879, 122.182 | |
| Dinapigue | Province of Isabela · Cagayan Valley | 16.5273, 122.2645 |