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