South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. With over 59 million people, it 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: executive Pretoria, judicial Bloemfontein and legislative Cape Town. The largest city is Johannesburg.
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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 Multiracial (Coloured South Africans) ancestry. It is bounded to the south by 2,798 kilometres (1,739 mi) of coastline of Southern Africa stretching along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini (former Swaziland); and it surrounds the enclaved country of Lesotho. It is the southernmost country on the mainland of the Old World, and the most populous country located entirely south of the equator.
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South Africa is a biodiversity hotspot, with a diversity of unique biomes and plant and animal life. South Africa is a multiethnic society encompassing a wide variety of cultures, languages, and religions. Its pluralistic makeup is reflected in the constitution's recognition of 11 official languages, the fourth-highest number in the world. According to the 2011 census, the two most spoken first languages are Zulu (22.7%) and Xhosa (16.0%). The two next ones are of European origin: Afrikaans (13.5%) developed from Dutch and serves as the first language of most Coloured and White South Africans; English (9.6%) reflects the legacy of British colonialism, and is commonly used in public and commercial life. The country is one of the few in Africa never to have had a coup d'état, and regular elections have been held for almost a century.