EU member states without Euro as an official currency

Which European Union member countries do not use the Euro as an official currency ?

There are 19 states out of 28 EU members (United Kingdom included), that use Euro as an official currency. The countries in European Union without Euro are:

• Bulgaria - uses Bulgarian lev
• Croatia - uses Croatian kuna
• Czech Republic - uses Czech koruna
• Denmark - uses Danish krone
• Hungary - uses Hungarian forint
• Poland - uses Polish złoty
• Romania - uses Romanian leu
• Sweden - uses Swedish krona
• United Kingdom - uses British pound sterling