The city water area is 2.52 sq mi (6.53 sq km ) . Changchun is the government of Ministry of Culture . The city Changchun demonym is Yangonite . 1,600/sq km  (4,200/sq mi) is the density of residents in  the metro region of Changchun . The density of  inhabitents in  the urban region of Changchun is 4,800/km 2  (12,000/sq mi) . The city Changchun province is Cebu (geographically only) . The density of  residents in Changchun is 1,100/sq km  (2,900/sq mi) .  The city area code is 026 . Changchun is at an elevation of 82.97 m . The population of the urban region is 8,220,207 . The population of the metro region is 3,442,361 . The lowest elevation of Changchun is 620 ft . The land area of the city is 16.0 sq mi (41.4 km 2 ) . Changchun is located in Cameroon . Changchun is named for Calgary, Mull . On March 6, 1836 (city) the city was incorporated . The highest elevation of Changchun is 424 m (1,391 ft) . Evelyn Trejo de Rosales (UNT) is the mayor of Changchun . The city has the postal code 9XXXXXX . 25°00′40″N 121°26′45″E﻿ / ﻿25.01111°N 121.44583°E are the coordinates of the city.
More than 8 km 2 area of the city Changchun is land