The West African population is not evenly distributed. It has some areas that are densely, moderately and sparsely populated. Areas with dense population are Lagos, Accra, Abidjan, Freetown, Dakar, Monrovia etc.
Areas with moderate population are Bamako, Niamey, Republic of Benin, etc.
Areas with sparse population are Mali, Mauritania, Upper Volta, Northern Niger and Middle belt of Nigeria.