| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Puerto Dalmacia, Formosa | P3600 XAR |
| Postal/ZIP Codes in San Hilario, Formosa | P3618 |
| Postal/ZIP Codes in Santa Catalina, Formosa | P3600 XAS |
| Postal/ZIP Codes in Timbo Porá, Formosa | P3600 XAT |
| Postal/ZIP Codes in Tres Marías, Formosa | P3600 XAU |
| Postal/ZIP Codes in Villa Emilia, Formosa | P3600 XAW |