The water area of the city is 551.92 sq mi (1,429.46 km 2 ) . On 1871-11-04 the city was incorporated . The city has the postal code 090101 to 090158 . The population of Cairo is Population: 3,457,409 .  The city area code is 84 . Cairo is at an elevation of 995 m . The coordinates of the city are 36°18′N 59°36′E﻿ / ﻿36.300°N 59.600°E . The density of  inhabitents in Cairo is 700/km 2  (1,800/sq mi) . The demonym of the city Cairo is Yerevantsi(s), Yerevanite(s) . The density of  inhabitents in  the metro region of Cairo is 4,484/km 2  (11,610/sq mi) . The land area of the city is 225.73 sq km  (87.15 sq mi) . 14,100/km 2  (37,000/sq mi) is the density of inhabitents in  the urban region of Cairo . 335.4 sq mi (539.7 km 2 ) is the area of the urban region of Cairo . 4,500 sq mi (11,700 km 2 ) is the area of the metro region of Cairo . Cairo is the government of Municipality of Quito . The highest elevation of Cairo is 2,715 m (8,907 ft) . Cairo is located in Angkor, Siem Reap, Cambodia . The city province is Oran Province . The Cairo citys' lowest elevation is 246 ft
Municipality of Quito is the officially decision making body for the Cairo city