| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Agua-y, Loma Grande | 031106 |
| Postal/ZIP Codes in Boqueron, Loma Grande | 031107 |
| Postal/ZIP Codes in Jaguarete Kua, Loma Grande | 031103 |
| Postal/ZIP Codes in Maria Auxiliadora, Loma Grande | 031101 |
| Postal/ZIP Codes in Mariscal Estigarribia, Loma Grande | 031101, 031106 |
| Postal/ZIP Codes in San Antonio, Loma Grande | 031104 |
| Postal/ZIP Codes in San Francisco, Loma Grande | 031101, 031104 |
| Postal/ZIP Codes in San Miguel, Loma Grande | 031101, 031107 |
| Postal/ZIP Codes in Sandiaty, Loma Grande | 031102 |
| Postal/ZIP Codes in Villa Flor, Loma Grande | 031105 |