| Localité | Code postal |
|---|---|
| Ayutepeque, Chalchuapa | 02205 |
| Beneficio Las Cruces, Chalchuapa | 02205 |
| Buenos Aires, Chalchuapa | 02205 |
| Chalchuapa, Chalchuapa | 02205 |
| El Arado, Chalchuapa | 02205 |
| El Coco, Chalchuapa | 02205 |
| El Cuje, Chalchuapa | 02205 |
| El Duraznillo, Chalchuapa | 02205 |
| El Jute, Chalchuapa | 02205 |
| El Nazareno, Chalchuapa | 02205 |
| El Paste, Chalchuapa | 02205 |
| El Tanque, Chalchuapa | 02205 |
| Finca Las Victorias, Chalchuapa | 02205 |
| Guachipilín, Chalchuapa | 02205 |
| La Criba, Chalchuapa | 02205 |
| La Libertad, Chalchuapa | 02205 |
| La Magdalena, Chalchuapa | 02205 |
| Las Cruces, Chalchuapa | 02205 |
| Las Flores, Chalchuapa | 02205 |
| Piedra Rajada, Chalchuapa | 02205 |
| Porvenir Jocotillo, Chalchuapa | 02205 |
| Sabanetas, Chalchuapa | 02205 |
| San Cristóbal, Chalchuapa | 02205 |
| San Isidro, Chalchuapa | 02205 |
| San José Pinalito, Chalchuapa | 02205 |
| San Luis, Chalchuapa | 02205 |