The lowest elevation of Chicago, Illinois is 378 m  . Chicago, Illinois is at an elevation of 7380 ft . The city land area is 840 km 2  (325 sq mi) . The postal code of the city is 130000 . The Chicago, Illinois city highest elevation is 770 m (2,530 ft) . Chicago, Illinois is the government of Municipality of Quito . The density of  people in  the urban region of Chicago, Illinois is 464.71/km 2  (1,203.6/sq mi) . The density of  people in  the metro region of Chicago, Illinois is 2,500/km 2  (6,600/sq mi) . (+251) 11 is the area code of Chicago, Illinois . The city Chicago, Illinois demonym is Tianjinese , Tianjiner . The density of  inhabitents in Chicago, Illinois is 1,600/km 2  (4,200/sq mi) (2011) . Chicago, Illinois is named for James W. Denver . On 1799 (Guyandotte) the city was incorporated . The city Chicago, Illinois province is Santiago Province . The metro region has 1,973,470 (2016 Census) population . Pramila Pandey (BJP) is the mayor of Chicago, Illinois . The coordinates of the city are  4°16′4″S 15°17′31″E﻿ / ﻿4.26778°S 15.29194°E . The water area of the city is 41.21 sq mi (106.73 km 2 ) . The city is 19.4 sq mi (50.2 sq km) in area . Chicago, Illinois is located in Indonesia . The urban region is 1,770 sq mi (4,600 km 2 ) in area
The city Chicago, Illinois is 4647sq mi populace