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