The city land area is 48.42 sq mi (125.41 km 2 ) . The urban region has 16,349,831 (2nd) population . The highest elevation of Chicago, Illinois is 5,364 m (17,598 ft) . Soham El Wardini (2018) (BSS/PS) is the mayor of Chicago, Illinois . Chicago, Illinois is the government of Swedish Ice Hockey Association . The density of  people in Chicago, Illinois is 3,194.38/km 2  (8,273.4/sq mi) . Chicago, Illinois is located in Colombia . The area of the city is 385.8 sq mi (999.3 sq km ) . 2,200/km 2  (5,700/sq mi) is the density of people in  the metro region of Chicago, Illinois . The population of the metro region is Population (2014): 7,360,703 . The density of  residents in  the urban region of Chicago, Illinois is 3,423/km 2  (8,870/sq mi) . On 1842 the city was incorporated . The city has the postal code 34000 to 34990 . The coordinates of the city are 15°25′S 28°17′E﻿ / ﻿15.417°S 28.283°E . The demonym of the city Chicago, Illinois is Medellinense  ,  Paisa . The water area of the city is 1.420 sq mi (3.677 km 2 )  13.73% .  The city area code is +226 . Chicago, Illinois is at an elevation of 72 ft
Chicago, Illinoispositively elevated