Euro Currency Countries List 2025. Andorra, monaco, san marino and the vatican city have adopted the euro as their national currency by virtue of specific monetary agreements with the eu, and may issue their own euro. Not surprisingly, the microstates of andorra, monaco, san marino and vatican city also use the euro.
Currently there are 20 different countries that have adopted this currency, totaling more than a combined 300 million citizens receiving their paychecks, paying their bills and. It is also the official currency of the european union,.