Mauritius

Mauritius has the second highest population density in Africa.

An excerpt from the article 25 facts about Mauritius

As of 2020, it had a population of 1.3 million, with a population density of 624 inhabitants per square kilometer. Mauritius has no indigenous population, as it was an uninhabited island before colonization. Today, about two-thirds of the population (68 percent) are Indo-Mauritians (they come from the Indian subcontinent). A large part, 27 percent, are Creoles, or descendants of slaves from Africa and Madagascar, mixed with other groups, especially Europeans. About three percent are Sinomaurites of Chinese origin, and about two percent are the white minority French-Mauritians.