Metropolitan France
According to INSEE, 65,018,000 people lived in metropolitan France as of January 2018, while 2,790,000 lived in overseas France, for a total of 67,808,000 inhabitants in the French Republic. Thus, metropolitan France accounts for 95.9% of the French Republic's population.
Immigration to France
The region with the largest proportion of immigrants is the Île-de-France (Greater Paris), where 40% of immigrants live. According to INSEE, French National Institute for Statistics and Economic Studies, responsible for the production and analysis of official statistics in France, about 35% of people (4 millions) living in Île-de-France, are either immigrant (17%) or born to at least one immigrant parent (18%) in 2006.