Hurepoix is an area of Île-de-France, in south west of Paris, localised between departments of Yvelines, Hauts-de-Seine and Essonne, it was an old province of the French Kingdom. The main city was Dourdan.
This area is one of the biggest of Île-de-France.
- North : Paris
- West : Rambouillet and forest
- East : Seine, Brie province, Fontainebleau and forest
- South : Beauce province
- Saint Jean de Beauregard
The economy of the west part of the area consists of farming, as in the past. The economy of the eastern part is more industrial.