DK — Denmark

Denmark is a Scandinavian country in Northern Europe, consisting of the Jutland Peninsula and over 400 islands. Copenhagen, the capital, is known for design, cycling culture, and being one of the happiest cities in the world. The Kingdom of Denmark also includes the Faroe Islands and Greenland as autonomous territories. The Danish Krone (DKK) is pegged to the Euro through ERM II. For developers, the DK country code maps to the da-DK locale for Danish. The .dk domain is widely used, and +45 is the dialing code. Denmark is notable for not having adopted the Euro despite being an EU member, meaning DKK must be handled separately from EUR. Danish number formatting uses comma for decimals and period for thousands. Denmark's CPR-nummer (personal identification number) is central to digital identity and has specific validation rules. Denmark's strong digital infrastructure and MobilePay mobile payment system make it a digitally advanced market. The Faroe Islands (FO) and Greenland (GL) have separate ISO 3166-1 codes.