40% Of Black Rhino population is in South Africa

The species is currently found in patchy distribution from Cameroon in the west to Kenya in the east, and south to South Africa. However, almost 98% of the total population is found in just
4 countries: South Africa, Namibia, Zimbabwe and Kenya. And of these countries, South Africa is the stronghold with approximately 40% of the total wild black rhino population.

There are four recognized subspecies:

    Southern-central black rhino (D. b. minor): Inhabited a historic range from central Tanzania through Zambia, Zimbabwe and Mozambique to northern and eastern South Africa; now found in South Africa (stronghold) and Zimbabwe, with smaller numbers remaining in southern Tanzania and reintroduced to Botswana, Malawi, Swaziland and Zambia. Currently the most numerous subspecies. Classified as Critically Endangered.
    
    South-western black rhino (D. b. bicornis): More adapted to arid and semi-arid savannahs. Range once included Namibia, southern Angola, western Botswana, and south-western and south-eastern South Africa; now only occurs in Namibia (stronghold) and South Africa. Classified as Critically Endangered.
    
    East African black rhino (D. b. michaeli): Historic distribution from south Sudan, Ethiopia, Somalia through Kenya into north-central Tanzania; current stronghold is Kenya, with smaller but growing numbers in northern Tanzania. Classified as Critically Endangered.
    
    West African black rhino (D. b. longipes): Once occurred across most of the savannahs of West Africa; by the beginning of this century reduced to only a few individuals in northern Cameroon which now may no longer exist. Classified as Probably Extinct.