3424 is the Postal Code/ZIP Code for the of Santiago de María in the El Salvador Department of Usulután and the Municipality of Santiago de María.
| Postal Code | 3424 |
| Postal Code Name | Santiago de María |
| Department | Usulután Department |
| Municipality | Santiago de María Municipality |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 3404 3410 3422 3426 |