Île-de-France (see list hotels) is one of the twenty-six administrative regions of France. 90% of its territory is covered by the Paris aire urbaine (or "metropolitan area") which extends beyond its borders in places.[1] Created as the "District of the Paris Region" in 1961, it was renamed as the "Île-de-France" région in 1976 to bring it into line with the rest of France's administrative regions created in 1972. Despite the name change, Île-de-France is still popularly referred to by French people as the Région Parisienne ("Paris Region") or RP.

Île-de-France is the most populated region of France. It has more residents than Belgium, Greece, Austria, Portugal or Sweden, and a comparable population to the U.S. state of Ohio and the Canadian province of Ontario. It is the fourth most populous country subdivision in the European Union after England, North Rhine-Westphalia and Bavaria.

Economically, Île-de-France is one of the richest regions in the world: its 2006 GDP was € 500,839 million ($US 629,100 million), nearly the entire GDP of the Netherlands, with a per capita GDP at € 43,370 ($US 54,477) the same year.

Île-de-France has a land area of 12,012 km² (4,638 sq. miles). The built-up area of Paris fills its 12,012 km² to near 23%[citation needed], and the Paris aire urbaine (or "metropolitan area", a built-up area + commuter belt) extends beyond its borders in places.

Places:
Paris (75)
Inner ring
Hauts-de-Seine (92)
Seine-Saint-Denis (93)
Val-de-Marne (94)
Outer ring
Val-d'Oise (95)
Essonne (91)
Yvelines (78)
Seine-et-Marne (77)