Dakar is the capital city of Senegal in West Africa. Over 1 million people live in Dakar (double that for the whole metropolitan area) making it Senegal's largest city.Dakar is located on the Cape Verde peninsula that juts into the Atlantic Ocean.akar is the capital city of Senegal in West Africa. Over 1 million people live in Dakar (double that for the whole metropolitan area) making it Senegal's largest city.