| Postal Code | Postal Code Place Name | Province | Canton |
|---|---|---|---|
| 20701 | Palmares | Alajuela | Palmares |
| 20702 | Zaragoza | Alajuela | Palmares |
| 20703 | Buenos Aires | Alajuela | Palmares |
| 20704 | Santiago | Alajuela | Palmares |
| 20705 | Candelaria | Alajuela | Palmares |
| 20706 | Esquipulas | Alajuela | Palmares |
| 20707 | La Granja | Alajuela | Palmares |