Claim: Slovenia is part of the Eurozone.

The eurozone , officially called the euro area , is a monetary union of 19 of the 28 European Union -LRB- EU -RRB- member states which have adopted the euro as their common currency and sole legal tender . The monetary authority of the eurozone is the Eurosystem . The other nine members of the European Union continue to use their own national currencies , although most of them are obliged to adopt the euro in future .   The eurozone consists of Austria , Belgium , Cyprus , Estonia , Finland , France , Germany , Greece , Ireland , Italy , Latvia , Lithuania , Luxembourg , Malta , the Netherlands , Portugal , Slovakia , Slovenia , and Spain . Other EU states -LRB- except for Denmark and the United Kingdom -RRB- are obliged to join once they meet the criteria to do so . No state has left , and there are no provisions to do so or to be expelled . Andorra , Monaco , San Marino , and Vatican City have formal agreements with the EU to use the euro as their official currency and issue their own coins . Kosovo and Montenegro have adopted the euro unilaterally , but these countries do not officially form part of the eurozone and do not have representation in the European Central Bank -LRB- ECB -RRB- or in the Eurogroup .   The ECB , which is governed by a president and a board of the heads of national central banks , sets the monetary policy of the zone . The principal task of the ECB is to keep inflation under control . Though there is no common representation , governance or fiscal policy for the currency union , some co-operation does take place through the Eurogroup , which makes political decisions regarding the eurozone and the euro . The Eurogroup is composed of the finance ministers of eurozone states , but in emergencies , national leaders also form the Eurogroup .   Since the financial crisis of 2007 -- 08 , the eurozone has established and used provisions for granting emergency loans to member states in return for the enactment of economic reforms . The eurozone has also enacted some limited fiscal integration , for example in peer review of each other 's national budgets . The issue is political and in a state of flux in terms of what further provisions will be agreed for eurozone change .