How many countries are in Southern Africa?

Africa is divided into five parts namely Northern Africa, Western Africa, Central Africa, Eastern Africa and Southern Africa. There are five countries in Southern Africa, while there are seven, nine, nineteen and seventeen in North Africa, Central Africa, Eastern Africa and Western Africa respectively. Here are the five countries found in Southern Africa: Botswana with a population of more than 2 million people (70% of the place is a desert named Kalahari Desert),

Lesotho with an area of 30,355 square kilometers and has a population of more than 2 million people, Namibia with an area of 825,615 square kilometers and a population of more than 2 million people, South Africa with an area of 1,221,037 square kilometers and a population of more than 54 million people and Swaziland with an area of 17,364 square kilometers and a population of more than 1 million people.