The land area of the city is 1,117.11 km 2  (431.32 sq mi) . The population of the urban region is Population (2014): 5,160,512 . Chicago, Illinois is located in Cameroon . The city was incorporated in December 23, 1814 (village) . The water area of the city is 0.736 sq mi (1.905 sq km) 36.58% . +82-53 is the area code of Chicago, Illinois . 8,600/km 2  (22,000/sq mi) is the density of residents in  the urban region of Chicago, Illinois . Area : 126 km2 (49 sq mi) is the area of the city namedChicago, Illinois . 3,351/km 2  (8,680/sq mi) is the density of residents in Chicago, Illinois . The city has the postal code 34000 to 34990 . Chicago, Illinois is at an elevation of 2382 ft . This city is named after Cartagena, Spain . The highest elevation of Chicago, Illinois is 33 m (108 ft) . 3,913 sq mi (10,130 km 2 ) is the area of the metro region of Chicago, Illinois . The coordinates of the city are 25°00′40″N 121°26′45″E﻿ / ﻿25.01111°N 121.44583°E . Chicago, Illinois is the government of Swedish Ice Hockey Association
Less than  905 km 2 area of the city Chicago, Illinois is land