3107 is the Postal Code/ZIP Code for the of Conchagua in the El Salvador Department of La Unión and the Municipality of Conchagua.
| Postal Code | 3107 |
| Postal Code Name | Conchagua |
| Department | La Unión Department |
| Municipality | Conchagua Municipality |
| Timezone | Central Standard Time (CST) |
| Adjacent Postal Codes | 3101 3108 |