| Place | Post Code |
|---|---|
| Brisas, Cajón o Carmen | 11908 |
| Cajón, Cajón o Carmen | 11908 |
| Cedral, Cajón o Carmen | 11908 |
| Gloria, Cajón o Carmen | 11908 |
| Las Vegas, Cajón o Carmen | 11908 |
| Mercedes, Cajón o Carmen | 11908 |
| Montecarlo, Cajón o Carmen | 11908 |
| Navajuelar, Cajón o Carmen | 11908 |
| Nubes, Cajón o Carmen | 11908 |
| Nvajuelar, Cajón o Carmen | 11908 |
| Paraíso, Cajón o Carmen | 11908 |
| Pilar, Cajón o Carmen | 11908 |
| Pueblo Nuevo, Cajón o Carmen | 11908 |
| Quizarrá, Cajón o Carmen | 11908 |
| Salitrales, Cajón o Carmen | 11908 |
| San Francisco, Cajón o Carmen | 11908 |
| San Ignacio, Cajón o Carmen | 11908 |
| San Pedrito, Cajón o Carmen | 11908 |
| Santa Fé, Cajón o Carmen | 11908 |
| Santa María, Cajón o Carmen | 11908 |
| Santa Teresa, Cajón o Carmen | 11908 |