The following are the zip codes in the municipalities and cities of Zambales.
| Region | Provinces | City/Municipality | Zip Code |
| Region 3 (Central Luzon) | Zambales | Botolan | 2202 |
| Region 3 (Central Luzon) | Zambales | Cabangan | 2203 |
| Region 3 (Central Luzon) | Zambales | Candelaria | 2212 |
| Region 3 (Central Luzon) | Zambales | Castillejos | 2208 |
| Region 3 (Central Luzon) | Zambales | Iba | 2201 |
| Region 3 (Central Luzon) | Zambales | Olongapo City | 2200 |
| Region 3 (Central Luzon) | Zambales | Palauig | 2210 |
| Region 3 (Central Luzon) | Zambales | San Antonio | 2206 |
| Region 3 (Central Luzon) | Zambales | San Felipe | 2204 |
| Region 3 (Central Luzon) | Zambales | San Marcelino | 2207 |
| Region 3 (Central Luzon) | Zambales | San Narciso | 2205 |
| Region 3 (Central Luzon) | Zambales | Subic | 2209 |
| Region 3 (Central Luzon) | Zambales | Sta. Cruz | 2213 |
