1,600/sq km  (4,200/sq mi) is the density of residents in  the metro region of Chicago, Illinois . Chicago, Illinois is located in Czech Republic . The coordinates of the city are 12°00′N 8°31′E﻿ / ﻿12.000°N 8.517°E . The metro region has 16,100,000 population . The water area of the city is 0.36 sq mi (0.92 km 2 ) . The population of the urban region is 5,490,000 (2014-urban, others 2013) . The density of  residents in Chicago, Illinois is 4,062/km 2  (10,523/sq mi) . The population of Chicago, Illinois is Population (2012): 3,937,451 . Chicago, Illinois is at an elevation of 7726 ft . This city is named after Rao Jodha . The lowest elevation of Chicago, Illinois is 5,740 ft  . The mayor of Chicago, Illinois is Ravinder Bhalla (term ends December 31, 2021) . 8,600/km 2  (22,000/sq mi) is the density of inhabitents in  the urban region of Chicago, Illinois . Chicago, Illinois is the government of Municipality of Quito . The postal code of the city is 080020 . The city land area is 48.42 sq mi (125.41 km 2 ) . The Chicago, Illinois city highest elevation is 241.9 m (793.6 ft) . The demonym of the city Chicago, Illinois is Catanesi . The city was incorporated in 1799 (Guyandotte) . The city province is Sichuan
There are 2151 residents per km 2 in the metro region of Chicago, Illinois