Paris is the capital city of France. It is situated on the River Seine, in northern France, at the heart of the Île-de-France region ("Region Parisienne"). Paris has an estimated population of 2,153,600 inhabitants (2005 est.). The Paris urban area has a population of 9.93 million; a vast commuter belt around the same completes the Paris "aire urbaine" (roughly: "metropolitan area") that, with its population of 11.5 million, is one of the most populated areas of its kind in Europe.