Denmark is in the European Union but not in the euro area
Background
Denmark is one of the European Union member states that belongs to the Union but stays outside the euro area.
Denmark has been a member of the European Union since 1 January 1973.
Its currency is the Danish krone (DKK); Denmark has negotiated an opt-out from the euro and is not required to adopt it.
Denmark has been a member of the Schengen area since 25 March 2001 and has 15 representatives in the European Parliament.
The country covers 42,925 sq km and had a population of 5,992,734 in 2025; it is a constitutional monarchy with a representative parliamentary system.
The Danish EU defence opt-out dated from 1993; voters abolished it in a referendum on 1 June 2022, and Denmark joined European cooperation on security and defence on 1 July 2022, taking part in PESCO and the European Defence Agency.
In plain words
Opt-out Opt-out — A legal exemption letting an EU member state stay outside a particular area of EU cooperation.
PESCO Permanent Structured Cooperation — An EU framework in which member states jointly develop defence capabilities.