27 — 34 códigos em 34 localidades (Filipinas).
| Código postal | Localidade / Distrito | Região / Município | Coordenadas |
|---|---|---|---|
| Vigan | Province of Ilocos Sur · Ilocos | 17.5747, 120.3869 | |
| Santa Catalina | Province of Ilocos Sur · Ilocos | 17.5967, 120.3592 | |
| Caoayan | Province of Ilocos Sur · Ilocos | 17.5619, 120.3975 | |
| Santa | Province of Ilocos Sur · Ilocos | 17.486, 120.4348 | |
| Narvacan | Province of Ilocos Sur · Ilocos | 17.4175, 120.4753 | |
| Santa Maria | Province of Ilocos Sur · Ilocos | 17.3665, 120.4808 | |
| San Esteban | Province of Ilocos Sur · Ilocos | 17.3299, 120.4451 | |
| Santiago | Province of Ilocos Sur · Ilocos | 17.2939, 120.4449 | |
| Banayoyo | Province of Ilocos Sur · Ilocos | 17.2333, 120.4833 | |
| Galimuyod | Province of Ilocos Sur · Ilocos | 17.1844, 120.4719 | |
| Candon | Province of Ilocos Sur · Ilocos | 17.1947, 120.4517 | |
| Salcedo (Baugen) | Province of Ilocos Sur · Ilocos | 17.0126, 120.5232 | |
| Santa Lucia | Province of Ilocos Sur · Ilocos | 17.1175, 120.4531 | |
| Santa Cruz | Province of Ilocos Sur · Ilocos | 17.0856, 120.4522 | |
| Tagudin | Province of Ilocos Sur · Ilocos | 16.9355, 120.4442 | |
| Suyo | Province of Ilocos Sur · Ilocos | 16.9762, 120.5254 | |
| Alilem | Province of Ilocos Sur · Ilocos | 16.8861, 120.5304 | |
| Sugpon | Province of Ilocos Sur · Ilocos | 16.8434, 120.5157 | |
| Cervantes | Province of Ilocos Sur · Ilocos | 16.9909, 120.7359 | |
| Sigay | Province of Ilocos Sur · Ilocos | 17.0833, 120.6 | |
| Gregorio del Pilar (Concepcion) | Province of Ilocos Sur · Ilocos | 17.4643, 120.4654 | |
| Quirino (Angkaki) | Province of Ilocos Sur · Ilocos | 17.4643, 120.4654 | |
| San Emilio | Province of Ilocos Sur · Ilocos | 17.2261, 120.6117 | |
| Lidlidda | Province of Ilocos Sur · Ilocos | 17.2693, 120.5213 | |
| Burgos | Province of Ilocos Sur · Ilocos | 17.3324, 120.4954 | |
| Nagbukel | Province of Ilocos Sur · Ilocos | 17.4471, 120.5247 | |
| San Vicente | Province of Ilocos Sur · Ilocos | 17.5969, 120.3736 | |
| Bantay | Province of Ilocos Sur · Ilocos | 17.5847, 120.3892 | |
| San Ildefonso | Province of Ilocos Sur · Ilocos | 17.6222, 120.3967 | |
| Santo Domingo | Province of Ilocos Sur · Ilocos | 17.6353, 120.4108 | |
| Magsingal | Province of Ilocos Sur · Ilocos | 17.685, 120.4244 | |
| San Juan (Lapog) | Province of Ilocos Sur · Ilocos | 17.7815, 120.4468 | |
| Cabugao | Province of Ilocos Sur · Ilocos | 17.7931, 120.4578 | |
| Sinait | Province of Ilocos Sur · Ilocos | 17.8664, 120.4583 |