The Chicago, Illinois citys' lowest elevation is 620 ft . The area of the city is Area : 1,706.8 km2 (659.0 sq mi) . Chicago, Illinois is the government of Kamloops City Council . The demonym of the city Chicago, Illinois is Alexandrian, Alexandrine (Arabic: إسكندراني‎) . The mayor of Chicago, Illinois is Kakha Kaladze . The density of  inhabitents in  the urban region of Chicago, Illinois is 2,300/km 2  (6,100/sq mi) . Chicago, Illinois is located in Japan . Chicago, Illinois is named for Confluence of Grand River and Gunnison River . 71 is the area code of Chicago, Illinois . The population of the metro region is 3,442,361 . The water area of the city is 45.3 sq mi (117.4 sq km) . 2,700/km 2  (7,100/sq mi) is the density of residents in Chicago, Illinois . On September 20, 1917 the city was incorporated . The coordinates of the city are 13°24′45″N 103°52′0″E﻿ / ﻿13.41250°N 103.86667°E﻿ / 13.41250; 103.86667 . The density of  inhabitents in  the metro region of Chicago, Illinois is 1,500/km 2  (3,900/sq mi) . The Chicago, Illinois city highest elevation is 91 m (299 ft) . The city land area is 227.34 sq mi (588 sq km ) . Chicago, Illinois is at an elevation of 570 m
Less than 896 sq mi area of the city Chicago, Illinois is land