Countries of the World

Europe is a part of the world in the Northern Hemisphere, bordered by the Atlantic Ocean to the west and the Arctic Ocean to the north, with an area of about 10.3 million km². Together with Asia, Europe forms the continent of Eurasia, making up roughly 17% of its total area, and is one of the smallest parts of the world, only slightly larger than Oceania. Europe is home to just under 750 million people, making it the fourth most populous part of the world after Asia, Africa, and the Americas. Europe comprises 50 countries. Population — 745 million (as of September 19, 2024; 9.21% of the world's population).

Asia is the largest part of the world by area, population, and population density. Together with Europe, it forms the continent of Eurasia, making up more than 83% of its total area. Its area (including islands) is about 44.5 million km². Asia's population exceeds the combined population of all other parts of the world. As of late April 2025, Asia's population was 4.79 billion, roughly 58.3% of the world's population. Asia is now the largest developing region in the world.

The Americas are a part of the world combining two continents, North and South America, along with nearby islands (including Greenland). Area — 42.5 million km², population — over 1 billion people. Bordered by the Pacific and Atlantic Oceans. The Americas were named after Amerigo Vespucci, an Italian explorer.

Africa is the second-largest continent after Eurasia, bordered by the Mediterranean Sea to the north, the Red Sea to the northeast, the Atlantic Ocean to the west, and the Indian Ocean to the east and south. Africa is also the second most populous continent after Asia. Its area is 30.3 million km², or 20.4% of the world's total land area. Africa comprises 54 countries. Its population is about 1.4 billion people.

Oceania is a part of the world; a geographic and often geopolitical region consisting mainly of hundreds of small islands and atolls in the central and western Pacific Ocean. Area — 8.6 million km² (including Australia). Population — about 57 million people. Oceania comprises 14 independent countries.