The eurozone is the geographical area in which the euro has replaced national currencies. This at present covers the countries of France, Germany, Spain, Portugal, Italy, Ireland, Greece, Austria, Finland, Belgium, the Netherlands and Luxembourg. The United Kingdom, Denmark, Sweden and the 10 countries joining the EU this year are currently outside the eurozone.
The Eurozone (also called Euro Area, Eurosystem or Euroland) is the subset of European Union member states which have adopted the euro, creating a currency union. The European Central Bank is responsible for monetary policy within the zone.