| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Nazca, General Roca | X6270 XAE |
| Postal/ZIP Codes in Nicolás Bruzone, General Roca | X6278 |
| Postal/ZIP Codes in Onagoity, General Roca | X6227 XAA |
| Postal/ZIP Codes in Pincén, General Roca | X6271 XAG |
| Postal/ZIP Codes in Ranqueles, General Roca | X6271 XAH |
| Postal/ZIP Codes in Santa Magdalena, General Roca | X6127 XAB |
| Postal/ZIP Codes in Tomas Echenique, General Roca | X6271 XAI |
| Postal/ZIP Codes in Villa Huidobro, General Roca | X6275 |
| Postal/ZIP Codes in Villa Moderna, General Roca | X6275 XAE |
| Postal/ZIP Codes in Villa Sarmiento, General Roca | X6273 XAC |
| Postal/ZIP Codes in Villa Valeria, General Roca | X6273 |
| Postal/ZIP Codes in Watt, General Roca | X6270 XAB |