1304 is the Postal Code/ZIP Code for the of Azacualpa in the El Salvador Department of Chalatenango and the Municipality of Azacualpa.
| Postal Code | 1304 |
| Postal Code Name | Azacualpa |
| Department | Chalatenango Department |
| Municipality | Azacualpa Municipality |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 1301 1327 1331 1332 |