Member states: 28 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, UK; note - candidate countries: Albania, Macedonia, Montenegro, Serbia, Turkey
note: there are non-European overseas countries and territories (OCTs) having special relations with Denmark, France, the Netherlands, and the UK (list is annexed to the Treaty on the Functioning of the European Union), that are associated with the Union to promote their economic and social development; member states apply to their trade with OCTs the same treatment as they accord each other pursuant to the treaties; OCT nationals are in principle EU citizens, but these countries are neither part of the EU, nor subject to the EU
there are 25 OCTs (1 with Denmark [Greenland], 6 with France [French Polynesia; French Southern and Antarctic Lands; New Caledonia; Saint Barthelemy; Saint Pierre and Miquelon; Wallis and Futuna], 6 with the Netherlands [Aruba, Bonaire, Curacao, Saba, Sint Eustatius, Sint Maarten], and 12 with the UK [Anguilla; Bermuda; British Antarctic Territory; British Indian Ocean Territory; British Virgin Islands; Cayman Islands; Falkland Islands; Montserrat; Pitcairn Islands; Saint Helena, Ascension, and Tristan da Cunha; South Georgia and the South Sandwich Islands; Turks and Caicos Islands]), of which 22 have joined the Overseas Countries and Territories Association (OCTA); the 3 OCTs that are not part of OCTA (British Antarctic Territory, British Indian Ocean Territory, South Georgia and the South Sandwich Islands) do not have a permanent population
Source: CIA World Factbook - This page was last updated on January 20, 2018