On 1842 the city was incorporated . Chicago, Illinois is located in Colombia . The mayor of Chicago, Illinois is Soham El Wardini (2018) (BSS/PS) . The coordinates of the city are 15°25′S 28°17′E﻿ / ﻿15.417°S 28.283°E . Chicago, Illinois is at an elevation of 22 m . Chicago, Illinois is the government of Swedish Ice Hockey Association . +226 is the area code of Chicago, Illinois . The city Chicago, Illinois demonym is Medellinense  ,  Paisa . The density of  residents in  the metro region of Chicago, Illinois is 2,200/km 2  (5,700/sq mi) . The Chicago, Illinois city highest elevation is 5,364 m (17,598 ft) . The density of  people in Chicago, Illinois is 3,194.38/km 2  (8,273.4/sq mi) . The water area of the city is 1.420 sq mi (3.677 km 2 )  13.73% . The metro region has Population (2014): 7,360,703 population . 385.8 sq mi (999.3 sq km ) is the area of the city namedChicago, Illinois . The land area of the city is 48.42 sq mi (125.41 km 2 ) . 3,423/km 2  (8,870/sq mi) is the density of inhabitents in  the urban region of Chicago, Illinois . 16,349,831 (2nd) is the population of the urban region of Chicago, Illinois . The city has the postal code 34000 to 34990
Swedish Ice Hockey Association is the officially decision making body for the Chicago, Illinois city