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.
Hauts-de-France
With 6,009,976 inhabitants (as of January 1, 2015), and a population of 189 inhabitants/km2, it represents the 3rd most populous region in France and the 2nd most densely populated in metropolitan France after Île-de-France.