2. Tanzania
In Tanzania that ranks 2nd in our list of cosmopolitan most culturally and ethnically diverse countries in the world in 2017, 99% are African people out of which 95% are Bantu consisting of more than 130 tribes. Other 1% are consisted of Asian, European, and Arab. A total of 126 languages are spoken in Tanzania, most of them are from the Bantu family. However, the official ones are Swahili and English.