Tierra Blanca zip code
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 37977 | Peña Blanca | Ranchería | - | Rural |
| 37975 | Peña Blanca Dos | Colonia | - | Rural |
| 37974 | Peña Blanca Uno | Ranchería | - | Rural |
| 37977 | Puerto del Madroño | Ranchería | - | Rural |
| 37974 | Puerto del Mezquite | Ranchería | - | Rural |
