| Locality | Post Code |
|---|---|
| Pla y Ragnoni, General Alvarado | B7607 XAF |
| San Cornelio, General Alvarado | B7603 XAJ |
| San Eduardo del Mar, General Alvarado | B7783 |
| San Felipe, General Alvarado | B7603 XAK |
| San José de Otamendi, General Alvarado | B7601 XAA |
| Santa Irene, General Alvarado | B7607 XAG |
| Villa Copacabana, General Alvarado | B7607 XAH |
| Yraizos, General Alvarado | B7605 XAC |