As of 2015, 10 countries are considered part of northern Europe: Iceland, Ireland, the United Kingdom, Denmark, Norway, Sweden, Finland, Estonia, Latvia and Lithuania. Territories that are part of northern Europe include Wales, Scotland and Northern Ireland, which are part of the U.K., and the Faroe Islands, which are part of Denmark. Denmark's territory of Greenland is part of North America, but is sometimes included in this group.
Northern European countries are known for having highly developed economies and high standards of living. The largest country in terms of population in northern Europe is the U.K., which as a 2015 population of 62,200,000. In contrast, the smallest country, Iceland, has a population of 300,000.