Villa Unión zip code
| Zip code | Settlement | Type | City | Zone |
|---|---|---|---|---|
| 26604 | San Carlos | Ranchería | - | Rural |
| 26614 | San Diego | Ranchería | - | Rural |
| 26607 | San Esteban | Ranchería | - | Rural |
| 26606 | San Francisco | Ranchería | - | Rural |
| 26607 | San Francisco | Ranchería | - | Rural |
| 26607 | San Javier | Ranchería | - | Rural |
| 26605 | San José del Carmen | Ranchería | - | Rural |
| 26605 | San Juan | Ranchería | - | Rural |
| 26635 | San Ramón | Ranchería | - | Rural |
| 26613 | Santa Ana | Ejido | - | Rural |
| 26607 | Santa Eulalia | Ranchería | - | Rural |
| 26606 | Santa Fe | Ranchería | - | Rural |
| 26623 | Santa Isabel | Ranchería | - | Rural |
| 26623 | Santa Isabel Dos | Ranchería | - | Rural |
| 26624 | Santa Margarita | Ranchería | - | Rural |
| 26635 | Santana Ortiz | Ranchería | - | Rural |
| 26607 | Santo Cristo | Ranchería | - | Rural |
