The following are the zip codes in the municipalities of Davao Occidental.
| Region | Provinces | City/Municipality | Zip Code |
| Region 11 (Davao Region) | Davao Occidental | Don Marcelino | 8013 |
| Region 11 (Davao Region) | Davao Occidental | Jose Abad Santos | 8014 |
| Region 11 (Davao Region) | Davao Occidental | Malita | 8012 |
| Region 11 (Davao Region) | Davao Occidental | Santa Maria | 8011 |
| Region 11 (Davao Region) | Davao Occidental | Sarangani | 8015 |
