| Place | Post Code |
|---|---|
| Alala, San Agustín | 12100 |
| Anya, San Agustín | 12100 |
| Coyllor Chico, San Agustín | 12100 |
| Coyllor Grande, San Agustín | 12100 |
| Coyllor Pata, San Agustín | 12100 |
| Matañuñu, San Agustín | 12100 |
| San Agustin, San Agustín | 12101 |
| Santa Ines, San Agustín | 12100 |
| Talhuis, San Agustín | 12100 |
| Vista Alegre, San Agustín | 12100 |