The demonym of the city Cairo is Evanstonian . The population of the metro region is 16,100,000 . The mayor of Cairo is Christian Roger Okemba (PCT) . 6,600/km 2  (17,000/sq mi) is the density of people in  the metro region of Cairo . The density of  inhabitents in  the urban region of Cairo is 3,300/km 2  (8,600/sq mi) . The urban region is Area : 993.5 km2 (383.6 sq mi) in area . On March 6, 1836 (city) the city was incorporated . The Cairo city highest elevation is 1,879 m (6,165 ft) . The area of the city is 2,121 km 2  (819 sq mi) . 350/sq mi (140/km 2 ) is the density of residents in Cairo . The lowest elevation of Cairo is 1,750 m . The coordinates of the city are 7°23′47″N 3°55′0″E﻿ / ﻿7.39639°N 3.91667°E . This city is named after Moses Cleaveland . Cairo is located in Angkor, Siem Reap, Cambodia . +57 2 is the area code of Cairo . The water area of the city is 0.37 sq mi (0.95 km 2 ) . Cairo is at an elevation of 1397 m
The people of the city Cairo are also known as Evanstonian