| Postal Code | Postal Code Place Name | State | Municipality |
|---|---|---|---|
| 84320 | Fronteras | Sonora | Fronteras |
| 84323 | Balcón | Sonora | Fronteras |
| 84324 | La Mina | Sonora | Fronteras |
| 84325 | Buenavista | Sonora | Fronteras |
| 84326 | Los Alisos | Sonora | Fronteras |
| 84327 | Ejido Miguel Sánchez Adame | Sonora | Fronteras |
| 84328 | Los Baños | Sonora | Fronteras |
| 84330 | Esqueda Centro | Sonora | Fronteras |
| 84333 | Infonavit | Sonora | Fronteras |
| 84334 | Ejidal | Sonora | Fronteras |
| 84335 | Valle | Sonora | Fronteras |
| 84336 | El Bajío | Sonora | Fronteras |