9. Republic of the Congo
The number 9 in our list of cosmopolitan most culturally and ethnically diverse countries in the world in 2017 is Congo. Its major ethnic groups are Kongo 48%, Sangha 20%, M’Bochi 12%, and Teke 17%, while the percentage of Europeans and other smaller groups is 3%. They use French as the official language. One of the most important things in their culture is mythology which is closely related to the mystical power of animals. A total number of languages in this country is 65.