Africa is the second largest continent in both land mass and population. It has over a billion people and 20 percent of the total land area. Africa is , made up of 54 fully recognized countries. It has between 2100-3000 languages made up from six major language families. It can be broken down into North Africa, West Africa, East Africa, Horn of Africa, Central Africa and Southern Africa. It is very diverse with an estimated 3000 tribes.
The following ethnic groups number 10 million people or more (source Wikipedia)
Arab, up to ca. 100 million, see Demographics of the Arab League
Berber ca. 65 million
Akan ca. 40 million
Hausa in Nigeria, Niger, Chad, Cameroon, Cote d’Ivoire and Sudan (ca. 30 million)
Igbo in Nigeria, Cameroon, Sierra Leone and Equatorial Guinea (ca. 30 million)
Yoruba in Nigeria and Benin (ca. 30 million)
Oromo in Ethiopia and Kenya (ca. 30 million)
Fula in Guinea, Nigeria, Cameroon, Senegal, Mali, Sierra Leone, Central African Republic, Burkina Faso, Benin, Niger, Gambia, Guinea Bissau, Chad, Sudan, Togo and Côte d’Ivoire (ca. 27 million)
Amhara in Ethiopia (ca. 20 million)
Somali in Somalia, Djibouti, Ethiopia and Kenya (ca. 15-17 million)
Hutu in Rwanda, Burundi, DR Congo (ca. 16 million)
Ijaw in Nigeria (ca. 14 million)
Mandinka in The Gambia, Guinea, Mali, Sierra Leone, Cote d’Ivoire, Senegal, Burkina Faso, Liberia, Guinea Bissau, Niger, Mauritania, Chad (ca. 13 million)
Kongo in Democratic Republic of the Congo, Angola and Republic of the Congo (ca. 10 million)
Shona in Zimbabwe and Mozambique (ca. 10 million)
Zulu in South Africa (ca. 10 million)
Additional Resources
http://www.africaguide.com/culture/tribes/index.htm
nations2tribes 