2,305/km 2  (5,970/sq mi) is the density of residents in  the urban region of Changchun . Changchun is located in Angkor, Siem Reap, Cambodia . 630/sq km  (1,600/sq mi) is the density of inhabitents in Changchun . The density of  residents in  the metro region of Changchun is 2,500/km 2  (6,600/sq mi) . 12°00′N 8°31′E﻿ / ﻿12.000°N 8.517°E are the coordinates of the city. . The postal code of the city is 8320000 . (+20) 2 is the area code of Changchun . Changchun is at an elevation of 131 m . Changchun is the government of Ministry of Culture . 344.5 km 2  (133.01 sq mi) is the area of the city namedChangchun . The Changchun city highest elevation is 14,110 ft (4,300 m) . This city is named after Christ Church, Oxford . The lowest elevation of Changchun is 1,750 m . The city province is Cebu (geographically only) . The city land area is 194.74 sq mi (504.38 km 2 ) . The city water area is 3.4 sq mi (8.8 km 2 ) . The urban region is 584.4 sq mi (1,513.59 km2) in area
PS use 3000 00 -  3019 00 to send mail in the city