The city was incorporated in March 6, 1836 (city) . The city water area is 0.37 sq mi (0.95 km 2 ) . Area : 993.5 km2 (383.6 sq mi) is the area of the urban region of Cairo . The city Cairo demonym is Evanstonian . The Cairo city highest elevation is 1,879 m (6,165 ft) . Cairo is named for Moses Cleaveland . The coordinates of the city are 7°23′47″N 3°55′0″E﻿ / ﻿7.39639°N 3.91667°E . 6,600/km 2  (17,000/sq mi) is the density of people in  the metro region of Cairo .  The city area code is +57 2 . 3,300/km 2  (8,600/sq mi) is the density of residents in  the urban region of Cairo . The city is 2,121 km 2  (819 sq mi) in area . The Cairo citys' lowest elevation is 1,750 m . 350/sq mi (140/km 2 ) is the density of residents in Cairo . Christian Roger Okemba (PCT) is the mayor of Cairo . Cairo is at an elevation of 4593 ft . The population of the metro region is 16,100,000 . Cairo is located in Angkor, Siem Reap, Cambodia
There are more than 16103245 residents in the metro region of Cairo