| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in San Antonio del Cajon, Santa María | K4139 XAR |
| Postal/ZIP Codes in San José, Santa María | K4139 |
| Postal/ZIP Codes in San José Banda, Santa María | K4139 XAN |
| Postal/ZIP Codes in San José Norte, Santa María | K4139 XAP |
| Postal/ZIP Codes in Santa María, Santa María | K4011 |
| Postal/ZIP Codes in Toroyaco, Santa María | K4139 XAQ |
| Postal/ZIP Codes in Totorilla, Santa María | K4139 XAS |
| Postal/ZIP Codes in Yapes, Santa María | K4139 XAO |