South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. With over 60 million people, the country is the world’s 23rd-most populous nation and covers an area of 1,221,037 square kilometres (471,445 square miles). South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein and Cape Town respectively. The largest city is Johannesburg. About 80% of South Africans are of Black African ancestry, divided among a variety of ethnic groups speaking different African languages. The remaining population consists of Africa’s largest communities of European (White South Africans), Asian (Indian South Africans and Chinese South Africans), and Multiracial (Coloured South Africans) ancestry.