>>4481196King nigger hasn’t arrived yet so I’ll answer.
Whites make up 8% of the population. The majority of them are the Afrikaners, who are descended from the original Dutch settlers with some Huguenot descent. The remaining whites are mostly of Anglo descent, and reside on the coast, in South Cape and Natal. Other white communities include the Portuguese who emigrated from Angola and Mozambique after both became independent communist nations.
Next are the blacks, making up the vast majority of the population. They are divided into numerous different groups with no one group making up a large majority. Nearly all are part of the Bantu super group. These are the Zulu (Kwazulu), Xhosa (Eastern Cape), Tswana (Northwest), and Sotho (usually divided into Southern and Northern, occupying Orange Free State and Lesotho). Smaller groups include the Venda, Tsonga, and Swati, all spilling over from Zimbabwe, Mozambique and Swaziland respectively. The San are the last remnant of unassimilated Khoikhoi, the “native people” of South Africa, and live in Northern Cape province. They are not Bantus.
The “Coloureds” are basically multiracials descending from Boer and Black ancestors, who make up another 8% of the population. They dominate Northern Cape, and primarily speak Afrikaans.
Finally, Asians. Mostly Indians, who arrived as labourers in the late 1800s. They occupy strips of the coast around Durban. Another group, the Cape Malays, are a group of Muslim Malaysians who arrived to Cape Town and formed a distinct community. The Chinese have a growing presence as well.
I’m pretty sure that should do it. As for your question on population, it’s pretty accurate. The Boers had full right to colonise South Africa. The Bantus who today dominate South Africa themselves migrated to it and destroyed to indigenous khoikhoi culture. As the Khoi were in such small number to begin with, they occupied South Africa extremely scarcely. Boers found the Cape uninhabited.