| Postal Code | Postal Code Place Name | State | Municipality |
|---|---|---|---|
| 71100 | Fortín | Oaxaca | Chalcatongo de Hidalgo |
| 71103 | Santa Catalina Yuxía | Oaxaca | Chalcatongo de Hidalgo |
| 71104 | Allende | Oaxaca | Chalcatongo de Hidalgo |
| 71105 | Progreso | Oaxaca | Chalcatongo de Hidalgo |
| 71106 | Colonia Yurancho | Oaxaca | Chalcatongo de Hidalgo |
| 71107 | La Unión | Oaxaca | Chalcatongo de Hidalgo |