Number of countries in the European Union 1958-2020

This statistic presents the number of member states in the European Union from 1958 to 2019.

Member States by year of entry
1958: Belgium, France, Germany, Italy, Luxembourg, Netherlands
1973: Denmark, Ireland, United Kingdom*
1981: Greece
1986: Portugal, Spain
1995: Austria, Finland, Sweden
2004: Cyprus, Czechia, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, Slovenia
2007: Bulgaria, Romania
2013: Croatia