Greater Cairo (
) is the largest
metropolitan area in
Egypt and the largest urban area in
Africa. It is the third
largest urban area in the
Islamic World after
Jakarta and
Karachi, and the world's
16th largest metropolitan area, consisting of
Cairo Governorate,
Giza city,
Shubra El-Kheima,
6th of October City and
Obour City, with a total population estimated at 20,500,000 (as of 2012); area: 1,709 km
2; density: 10,400/km
2.