The postal code of the city is 3000 00 -  3019 00 . 5,274,321 (2014-urban, others 2013) is the population of the metro region of Christchurch . The Christchurch city highest elevation is 2,715 m (8,907 ft) . The density of  inhabitents in  the metro region of Christchurch is 2,500/km 2  (6,600/sq mi) . Christchurch is at an elevation of 570 m . Christchurch is named for Saint James . The city land area is 194.74 sq mi (504.38 km 2 ) . The city Christchurch demonym is Barranquillero/a . 6°13′51″N 75°35′26″W﻿ / ﻿6.23083°N 75.59056°W are the coordinates of the city. . The density of  people in  the urban region of Christchurch is 464.71/km 2  (1,203.6/sq mi) . The population of the urban region is 3,372,090 . Christchurch is the government of Bristol City Council . 11,312/km 2  (29,298/sq mi) is the density of inhabitents in Christchurch . Christchurch has Population: 639,598 (2014-urban, others 2013) population . The lowest elevation of Christchurch is 190 m  . The mayor of Christchurch is Armand Béouindé (since 2016) . The city water area is 0.36 sq mi (0.92 km 2 ) . On 1871-11-04 the city was incorporated .  The city area code is +57 4 . Christchurch is located in Angkor, Siem Reap, Cambodia
+57 4 is a prefix required to call a number in Christchurch