Among the 100 departments of France, four (French Guiana, Guadeloupe, Martinique, and Réunion) are found in the overseas regions and are simultaneously overseas regions and overseas departments and are an integral part of France (and the European Union) and thus enjoy a status similar to metropolitan departments.
In addition to the 26 regions and 100 departments, the French Republic also has six overseas collectivities (French Polynesia, Mayotte, Saint Barthélemy, Saint Martin, Saint Pierre and Miquelon, and Wallis and Futuna), one sui generis collectivity (New Caledonia), one overseas territory (French Southern and Antarctic Lands), and one island possession in the Pacific Ocean (Clipperton Island). Overseas collectivities and territories form part of the French Republic, but do not form part of the European Union or its fiscal area. The Pacific territories continue to use the Pacific franc whose value is linked to that of the euro. In contrast, the four overseas regions used the French franc and now use the euro.
