| Postal Code | Postal Code Place Name | State | Municipality |
|---|---|---|---|
| 68430 | Corral de Piedra | Oaxaca | San Miguel Soyaltepec |
| 68432 | Isla Soyaltepec | Oaxaca | San Miguel Soyaltepec |
| 68433 | San Miguel Soyaltepec | Oaxaca | San Miguel Soyaltepec |
| 68434 | Nuevo Paso Nacional | Oaxaca | San Miguel Soyaltepec |