| Locality | Post Code |
|---|---|
| Real Mandinga, Alvarado | 95266 |
| Residencial Playa Dorada, Alvarado | 95264 |
| Rincón de la Palma, Alvarado | 95250 |
| Rincón del Conchal, Alvarado | 95264 |
| Salinas, Alvarado | 95261 |
| Villa Rica (Clud de Golf), Alvarado | 95264 |
| Vista Bella, Alvarado | 95264 |
| Viveros, Alvarado | 95269 |