The demography of France is monitored by the Institut national d'études démographiques (INED) and the Institut National de la Statistique et des Études Économiques (INSEE). On 1 September 2015, 67,087,000 people lived in the French Republic with all the overseas departement and territories (DOM,TOM) . 64,345,000 of these lived in Metropolitan France,[1] whereas 2,742,000 lived in the French overseas departments and territories.France was historically Europe's most populous nation.