3,423/km 2  (8,870/sq mi) is the density of inhabitents in  the urban region of Chongqing . The area of the urban region is 225,574 km 2  (87,095 sq mi) . On December 23, 1814 (village) the city was incorporated . The population of the metro region is Population (2014): 7,360,703 . The land area of the city is 340.5 sq mi (881.9 sq km) . The city is 641 km 2  (247.6 sq mi) in area . The city water area is 3.4 sq mi (8.8 sq km) . Chongqing is at an elevation of 1397 m .  31°12′N 29°55′E﻿ / ﻿31.200°N 29.917°E are the coordinates of the city. . The Chongqing city highest elevation is 91 m (299 ft) . Chongqing is the government of Municipality of Quito . Vladimir Panov is the mayor of Chongqing . 15,000/km 2  (40,000/sq mi) is the density of residents in Chongqing . The city Chongqing demonym is Delhiite . The postal code of the city is 090101 to 090158 .  The city area code is 9 . The province of the city Chongqing is Sichuan . The lowest elevation of Chongqing is 2 m 
Land covers 1316 sq km area of the city