Cairo-Giza-Qalyubia-Helwan-6th of October City (Greater Cairo), Egypt (16 million) The area around the Nile is also very densely populated.
The Nairobi Metropolitan Region consisting of the counties of (Kajiado-Kiambu-Nairobi-Machakos-Murang'a) in Kenya, which have a combined population of 8 million people [REF].