West Africa West Africa West Africa is the westernmost region of Africa. West Africa has been defined as including 17 countries: Benin, Burkina Faso, the island nation of Cape Verde, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Mali, Mauritania, Niger, Nigeria, the islands of Saint Helena, Ascension and Tristan da Cunha, Senegal, Sierra Leone and Togo. The population of West Africa is estimated at about /1e6 round 0 million people as of . Studies of human mitochondrial DNA suggest that all humans share common ancestors from Africa, originated in the southwestern regions near the coastal border of Namibia and Angola at the
West Africa inhabited by both traditionally West African groups such as the Fulani, Soninke and Wolof, along with Arab-Berber Maghrebi people. Due to its increasingly close ties to the Arab World and its 1999 withdrawal from the Economic Community of West African States (ECOWAS), in modern times it is often considered, especially in Africa, as now part of western North Africa. Major cities in West Africa include: West Africa, broadly defined to include the western portion of the Maghreb (Western Sahara, Morocco, Algeria, and Tunisia), occupies an area in excess of 6,140,000 km, or approximately one-fifth of Africa. The vast majority of