| Place |
Post Code |
| Corrooy, Santol |
2516 |
| Lettac Norte, Santol |
2516 |
| Lettac Sur, Santol |
2516 |
| Mangaan, Santol |
2516 |
| Paagan, Santol |
2516 |
| Poblacion, Santol |
2516 |
| Puguil, Santol |
2516 |
| Ramot, Santol |
2516 |
| Sapdaan, Santol |
2516 |
| Sasaba, Santol |
2516 |
| Tubaday, Santol |
2516 |
| 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 |