As of the end of 2009, there are twenty-seven countries in the European Union.

 

Alphabetical Order

Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, The Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the United Kingdom.

 

Dates of Joining:

1957: Belgium, France, West Germany, Italy, Luxembourg, Netherlands
1973: Denmark, Ireland, United Kingdom
1981: Greece
1986: Portugal, Spain
1995: Austria, Finland and Sweden
2004: Czech Republic, Cyprus, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovak Republic, Slovenia.

2007: Bulgaria, Romania