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.

This area is one of the biggest of the Île-de-France.

Limits :

• North : Paris
• West : Rambouillet and forest
• East : Seine, Brie province, Fontainebleau and forest
• South : Beauce province

Main cities

• Dourdan
• Limours
• Orsay
• Massy
• Montlhéry
• Palaiseau

Main rivers

• Yvette
• Bièvre
• Essonne
• Orge

Main forest

• Dourdan
• Verrières-le-Buisson

Main Castles

This area is not far from Versailles, and the castle of Louis XIV. In this period, Princes and Dukes built castles not far, in Hurepoix.

• Chamarande
• Breteuil
• Courson
• Dampierre
• Dourdan
• Sceaux
• 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.

48°33′N 2°01′E / 48.55°N 2.02°E / 48.55; 2.02