Cairo is at an elevation of 1397 m . 6,600/km 2  (17,000/sq mi) is the density of people in  the metro region of Cairo . 16,100,000 is the population of the metro region of Cairo . The area of the urban region is Area : 993.5 km2 (383.6 sq mi) . 3,300/km 2  (8,600/sq mi) is the density of residents in  the urban region of Cairo . The demonym of the city Cairo is Evanstonian . 7°23′47″N 3°55′0″E﻿ / ﻿7.39639°N 3.91667°E are the coordinates of the city. . Cairo is located in Angkor, Siem Reap, Cambodia . The density of  residents in Cairo is 350/sq mi (140/km 2 ) .  The city area code is +57 2 . The city was incorporated in March 6, 1836 (city) . The water area of the city is 0.37 sq mi (0.95 km 2 ) . The lowest elevation of Cairo is 5,740 ft  . Cairo is named for Moses Cleaveland . The city is 2,121 km 2  (819 sq mi) in area . The mayor of Cairo is Christian Roger Okemba (PCT) . The highest elevation of Cairo is 1,879 m (6,165 ft)
There are more than 116 inhabitents per km 2 in Cairo