| Place | Post Code |
|---|---|
| Alto San Antonio, Belén | 50504 |
| Belén, Belén | 50504 |
| Cachimbo, Belén | 50504 |
| Castilla de Oro, Belén | 50504 |
| Coyolito, Belén | 50504 |
| Gallina, Belén | 50504 |
| Juanilama, Belén | 50504 |
| Llano, Belén | 50504 |
| Loma Bonita, Belén | 50504 |
| Ojochal, Belén | 50504 |
| Palestina, Belén | 50504 |
| Palmas, Belén | 50504 |
| Paraíso, Belén | 50504 |
| Penca, Belén | 50504 |
| Planes, Belén | 50504 |
| Poroporo, Belén | 50504 |
| Río Cañas Nuevo, Belén | 50504 |
| Santa Ana, Belén | 50504 |
| Santo Domingo, Belén | 50504 |
| Villita, Belén | 50504 |
| All postal codes in Carrillo | |
|---|---|
| Belén, Carrillo | |
| Filadelfia, Carrillo | |
| Palmira, Carrillo | |
| Sardinal, Carrillo | |