The Jizan region of the regions of the Kingdom of population density, where nearly a million and a half million people on an estimated area of 16000 km 2 is also characterized this region vary considerably in geography, ranging from high mountains in the east to the coasts bordering the Red Sea extended to the island of Knights of the west through the plains Tehama fertile valleys filled with seasonal water bodies. As in the open coastal areas geographically and because of its proximity to the southern boundary of the queen in the region generated demographic composition of mixed and mixed with the social customs.