(+20) 2 is the area code of Changchun . The city land area is 194.74 sq mi (504.38 km 2 ) . 2,500/km 2  (6,600/sq mi) is the density of people in  the metro region of Changchun . The lowest elevation of Changchun is 1,750 m . 12°00′N 8°31′E﻿ / ﻿12.000°N 8.517°E are the coordinates of the city. . The area of the urban region is 584.4 sq mi (1,513.59 km2) . The Changchun city highest elevation is 14,110 ft (4,300 m) . The city province is Cebu (geographically only) . The density of  people in  the urban region of Changchun is 2,305/km 2  (5,970/sq mi) . 344.5 km 2  (133.01 sq mi) is the area of the city namedChangchun . Changchun is the government of Ministry of Culture . Changchun is at an elevation of 430 ft . 630/sq km  (1,600/sq mi) is the density of inhabitents in Changchun . The city has the postal code 8320000 . This city is named after Christ Church, Oxford . The city water area is 3.4 sq mi (8.8 km 2 ) . Changchun is located in Angkor, Siem Reap, Cambodia
Changchun is a part of Angkor, Siem Reap, Cambodia