| Locality | Post Code |
|---|---|
| Concepción Jalponga, San Rafael Obrajuelo | 01620 |
| El Pajal, San Rafael Obrajuelo | 01620 |
| Jalponga, San Rafael Obrajuelo | 01620 |
| La Longaniza, San Rafael Obrajuelo | 01620 |
| San Jerónimo, San Rafael Obrajuelo | 01620 |
| San José Obrajuelo, San Rafael Obrajuelo | 01620 |