| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Valle San Agustin, Chacabuco | D5775 XAA |
| Postal/ZIP Codes in Valle San José, Chacabuco | D5775 XAB |
| Postal/ZIP Codes in Villa del Carmen, Chacabuco | D5835 |
| Postal/ZIP Codes in Villa Dolores, Chacabuco | D5770 XAE |
| Postal/ZIP Codes in Villa Elena, Chacabuco | D5883 XAB |
| Postal/ZIP Codes in Villa Larca, Chacabuco | D5882 |
| Postal/ZIP Codes in Volcan Estanzuela, Chacabuco | D5835 XAL |