Arroyo Seco zip code
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 76414 | Casas Viejas | Ranchería | - | Rural |
| 76426 | Cerro Blanco | Ranchería | - | Rural |
| 76410 | Concá | Pueblo | - | Rural |
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 76414 | Casas Viejas | Ranchería | - | Rural |
| 76426 | Cerro Blanco | Ranchería | - | Rural |
| 76410 | Concá | Pueblo | - | Rural |