Definitions and usage
Another geographic delineation for the region is the portion of Africa south of the Cunene and Zambezi Rivers – that is: South Africa, Lesotho, Eswatini, Namibia, Botswana, Zimbabwe and the part of Mozambique which lies south of the Zambezi River. This definition is most often used in South Africa for natural sciences and particularly in guide books such as Roberts' Birds of Southern Africa, the Southern African Bird Atlas Project and Mammals of the Southern African Subregion. It is not used in political, economic or human geography contexts because this definition cuts Mozambique in two.
UN scheme of geographic regions and SACU
In the United Nations scheme of geographic regions, five states constitute Southern Africa:
The Southern African Customs Union (SACU), created in 1969, also comprises the five states in the UN subregion of Southern Africa.
The (SADC) was established in 1980 to facilitate co-operation in the region. It includes:
This section does not cite any sources
. (November 2011)
The region is sometimes reckoned to include other territories:
The Democratic Republic of the Congo and Tanzania, though more commonly reckoned in Central and Eastern Africa, respectively, are occasionally included in Southern Africa as they are SADC members.