Distributed from the Ethiopian Rift Valley, highlands east of the Rift, and southern Somalia in the north, through the eastern lowlands of Ethiopia, Kenya, Tanzania, Uganda, Zambia (east of the Luangwa Valley), Malawi, Mozambique, Zimbabwe, Botswana and South Africa (all provinces). This species has also been recorded from the islands of Pemba and Mafia, Tanzania, and the Manda Islands, Lamu Archipelago, of northern Kenya. Sympatric with Papio spp and Erythrocebus patas (T. Butynski and Y. de Jong pers. comm.).