The Île-de-France is the most populous of the eighteen regions of France, with an official estimated population of 12,271,794 residents on 1 January 2023. Centred on the capital Paris, Île-de-France is densely populated and retains a prime economic position on the national stage: though it covers only 12,012 square kilometres, about 2% of metropolitan French territory, its 2017 population was nearly one-fifth of the national total.
Residents are sometimes referred to as Franciliens, an administrative word created in the 1980s. The GDP of the region in 2019 was nearly one-third of the French.
Beyond the city limits of Paris, the region has many other important historic sites, including the palaces of Versailles and Fontainebleau, as well as the most-visited tourist attraction in France, Disneyland Paris.