The Americas, also known as America, are lands of the Western Hemisphere, composed of numerous entities and regions variably defined by geography, politics, and culture.
The Americas are recognized in the English-speaking world to include two separate continents: North America and South America. In parts of Europe and Latin America, America is considered to be a single continent, within which North and South America are regions.
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North America is a continent in the Northern and Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. The region includes Middle America comprising the Caribbean, Central America, and Northern America.
North America covers an area of around 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of Earth's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the fourth-largest continent by population after Asia, Africa, and Europe. As of 2021, North America's population was estimated as over 592 million people in 23 independent states and territories, or about 7.5% of the world's population. In human geography, the terms "North America" and "North American" refers to Canada, Greenland, Mexico, Saint Pierre and Miquelon, and the United States.