La Unión de Isidoro Montes de Oca zip code
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 40812 | San Francisco | Barrio | - | Rural |
| 40828 | San Jerónimo (La Caliza) | Ranchería | - | Rural |
| 40825 | Santa María | Ranchería | - | Rural |
| 40820 | Surcua | Ranchería | - | Rural |
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 40812 | San Francisco | Barrio | - | Rural |
| 40828 | San Jerónimo (La Caliza) | Ranchería | - | Rural |
| 40825 | Santa María | Ranchería | - | Rural |
| 40820 | Surcua | Ranchería | - | Rural |