Frontera zip code
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 25810 | San Antonio | Fraccionamiento | - | Rural |
| 25619 | San Cristóbal | Colonia | Frontera | Urbano |
| 25628 | Sierrita | Colonia | Frontera | Urbano |
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 25810 | San Antonio | Fraccionamiento | - | Rural |
| 25619 | San Cristóbal | Colonia | Frontera | Urbano |
| 25628 | Sierrita | Colonia | Frontera | Urbano |