| Locality | Post Code |
|---|---|
| Agua Azul, Ixhuatán | 29723 |
| Chapayal, Ixhuatán | 29720 |
| Ciudad Rural Sustentable Ixhuatán, Ixhuatán | 29720 |
| El Majagual, Ixhuatán | 29724 |
| El Tulipán, Ixhuatán | 29729 |
| El Zapote, Ixhuatán | 29725 |
| Emiliano Zapata, Ixhuatán | 29722 |
| Ignacio Zaragoza, Ixhuatán | 29721 |
| Ixhuatan, Ixhuatán | 29720 |
| Monte Chico, Ixhuatán | 29729 |
| Pojayal, Ixhuatán | 29723 |
| San Miguel, Ixhuatán | 29729 |
| San Miguel Buena Vista, Ixhuatán | 29694 |
| Santa Anita, Ixhuatán | 29723 |