Det Val-d'Oise Department as ian faan a departmenten faan det Île-de-France regiuun uun Frankrik. At department leit uun a nuurdwaast faan't regiuun. Det hee 1.260.269 lidj (2021)[1]. At hoodsteed faan't department as Pontoise.
Essonne | Hauts-de-Seine | Paris | Seine-et-Marne | Seine-Saint-Denis | Val-de-Marne | Val-d'Oise | Yvelines