The SEPA zone includes the Euro countries, non-Euro EU member states, and non-EU countries.
The SEPA zones members are listed below:
Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France (including overseas territories), Germany, Greece, Hungary, Ireland, Iceland (including the Åland Islands), Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain (including the Canary Islands), Sweden, Switzerland, and United Kingdom (including Gibraltar, Guernsey, Jersey and Isle of Man).
Find more information about the SEPA zone here.