This department has 259 communes.
| Code | Name | Population |
|---|---|---|
| 78646 | Versailles | 84 095 |
| 78586 | Sartrouville | 52 763 |
| 78551 | Saint-Germain-en-Laye | 45 931 |
| 78361 | Mantes-la-Jolie | 43 526 |
| 78498 | Poissy | 40 983 |
This department has 22 cantons.
This department has 4 departmental arrondissements.
| Code | Name | Administrative seat |
|---|---|---|
| 781 | Mantes-la-Jolie | Mantes-la-Jolie |
| 782 | Rambouillet | Rambouillet |
| 783 | Saint-Germain-en-Laye | Saint-Germain-en-Laye |
| 784 | Versailles | Versailles |