| Locality | Postal Code |
|---|---|
| Villa, Jáchal | J5460 XDL |
| Villa Mercedes, Jáchal | J5461 XAF |
| Volcán, Jáchal | J5460 XDM |
| Postal Codes in San Juan | |
|---|---|
| Zonda | Valle Fértil |
| Ullum | Sarmiento |
| Santa Lucía | San Martín |
| Rivadavia | Rawson |
| Pocito | Jáchal |
| Iglesia | Chimbas |
| Caucete | Capital |
| Calingasta | Angaco |
| Albardón | 9 de Julio |
| 25 de Mayo | |