| Locality | Postal Code |
|---|---|
| Candelaria, San Gerardo | 03318 |
| El Espíritu Santo, San Gerardo | 03318 |
| El Jícaro, San Gerardo | 03318 |
| Joya Del Zapotillo, San Gerardo | 03318 |
| La Joya, San Gerardo | 03318 |
| La Laguna, San Gerardo | 03318 |
| Quebracho, San Gerardo | 03318 |
| San Andrés, San Gerardo | 03318 |
| San Gerardo, San Gerardo | 03318 |
| San Jerónimo, San Gerardo | 03318 |
| San Pedro, San Gerardo | 03318 |
| Santa Bárbara, San Gerardo | 03318 |