Hurepoix (French pronunciation: [yʁpwa]) is an area of the Île-de-France, to the southwest of Paris, situated between the departments of Yvelines, Hauts-de-Seine and Essonne.
It was an old province of the French Kingdom and the main city was Dourdan.
In this period, Princes and Dukes built castles not far, in Hurepoix.
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.