| Locality | Postal Code |
|---|---|
| Alto del Saladillo, San Pedro | Y4500 XAI |
| Arrayanal, San Pedro | Y4503 XAH |
| Arroyo Colorado, San Pedro | Y4500 XAL |
| Barrio La Providencia, San Pedro | Y4500 XAD |
| Barro Negro, San Pedro | Y4522 XAH |
| El Acheral, San Pedro | Y4500 XAE |
| El Quemado, San Pedro | Y4504 XAG |
| Ensenada, San Pedro | Y4500 XAF |
| Esquina de Quisto, San Pedro | Y4500 XAG |
| La Esperanza, San Pedro | Y4503 |
| La Mendieta, San Pedro | Y4522 |
| La Sanga, San Pedro | Y4500 XAJ |
| Los Bayos, San Pedro | Y4503 XAE |
| Lote Don David, San Pedro | Y4522 XAI |
| Lote Don Emilio, San Pedro | Y4522 XAJ |
| Lote El Puesto, San Pedro | Y4503 XAK |
| Lote La Cienaga, San Pedro | Y4503 XAF |
| Lote La Posta, San Pedro | Y4503 XAG |
| Lote Palmera, San Pedro | Y4503 XAL |
| Lote Parapeti, San Pedro | Y4503 XAI |
| Lote Piedritas, San Pedro | Y4522 XAD |
| Moralito, San Pedro | Y4500 XAH |
| Palo Santo, San Pedro | Y4522 XAG |
| Río Grande, San Pedro | Y4522 XAE |
| Rodeito, San Pedro | Y4500 XAA |
| Rodeitos, San Pedro | Y4500 XAA |