| Place |
Post Code |
| Naguituban, San Juan |
2514 |
| Nagyubuyuban, San Juan |
2514 |
| Oaquing, San Juan |
2514 |
| Pacpacac, San Juan |
2514 |
| Pagdildilan, San Juan |
2514 |
| Panicsican, San Juan |
2514 |
| Quidem, San Juan |
2514 |
| San Felipe, San Juan |
2514 |
| Santa Rosa, San Juan |
2514 |
| Santo Rosario, San Juan |
2514 |
| Saracat, San Juan |
2514 |
| Sinapangan, San Juan |
2514 |
| Taboc, San Juan |
2514 |
| Talogtog, San Juan |
2514 |
| Urbiztondo, San Juan |
2514 |
| All postal codes in La Union |
| Agoo, La Union |
| Aringay, La Union |
| Bacnotan, La Union |
| Bagulin, La Union |
| Balaoan, La Union |
| Bangar, La Union |
| Bauang, La Union |
| Burgos, La Union |
| Caba, La Union |
| Luna, La Union |
| Naguilian, La Union |
| Pugo, La Union |
| Rosario, La Union |
| San Fernando, La Union |
| San Gabriel, La Union |
| San Juan, La Union |
| Santo Tomas, La Union |
| Santol, La Union |
| Sudipen, La Union |
| Tubao, La Union |