On December 23, 1814 (village) the city was incorporated . Chicago, Illinois is at an elevation of 726 m . Chicago, Illinois is located in Cameroon . The city has the postal code 34000 to 34990 . The area of the metro region is 3,913 sq mi (10,130 km 2 ) . The land area of the city is 1,117.11 km 2  (431.32 sq mi) . 25°00′40″N 121°26′45″E﻿ / ﻿25.01111°N 121.44583°E are the coordinates of the city. . Chicago, Illinois is named for Cartagena, Spain . Chicago, Illinois is the government of Swedish Ice Hockey Association . The density of  people in Chicago, Illinois is 3,351/km 2  (8,680/sq mi) . The population of the urban region is Population (2014): 5,160,512 .  The city area code is +82-53 . The density of  people in  the urban region of Chicago, Illinois is 8,600/km 2  (22,000/sq mi) . The Chicago, Illinois city highest elevation is 33 m (108 ft) . Area : 126 km2 (49 sq mi) is the area of the city namedChicago, Illinois . The city water area is 0.736 sq mi (1.905 sq km) 36.58%
2014 residents live in the urban region of Chicago, Illinois