The Yoruba (Yoruba: Ìran Yorùbá, literally: Yoruba race) or less appropriately: Àwon omo Yorùbá (Children of Yoruba), are an ethnic group of Southwestern and North Central Nigeria as well as Southern and Central Benin, together known as Yorubaland. The Yoruba constitute over 40 million people in total. The majority of this population is from Nigeria and make up 21% of its population, according to the CIA World Factbook, making them one of the largest ethnic groups in Africa. The majority of the Yoruba speak the Yoruba language, which is tonal, and is the Niger-Congo language with the largest number of native speakers.