North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.
North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the earth's land area and about 4.8% of its total surface. North America is the third largest continent by area, following Asia and Africa.
Owing to the European colonization of the Americas, most North Americans speak English, Spanish or French, and their culture commonly reflects Western traditions.
North America countries mainly refere to Canada, USA and Mexico, but it contains all Caribbean and Central America countries, as well as Greenland.