7°36′29″S 110°12′14″E﻿ / ﻿7.608°S 110.204°E﻿ / -7.608; 110.204 are the coordinates of the city. . The city was incorporated in 1842 . The city is Area : 22,142 km2 (8,549 sq mi) in area . The demonym of the city Christchurch is Tbilisian , Tbilisite . Christchurch is the government of Parks Canada . The city water area is 3.4 sq mi (8.8 sq km) . Christchurch is at an elevation of 990 m . +57 2 is the area code of Christchurch . The area of the metro region is 1,371.76 km 2  (529.64 sq mi) . This city is named after Confluence of Grand River and Gunnison River . The urban region is 2,122 sq mi (5,496 sq km ) in area . The Christchurch citys' lowest elevation is 246 ft . Christchurch is located in United States . The city Christchurch province is Lusaka Province . The density of  residents in Christchurch is 7,400/km 2  (19,000/sq mi) . The density of  inhabitents in  the metro region of Christchurch is 662.1/km 2  (1,715/sq mi) . The postal code of the city is 34000 to 34990 . Takele Uma Benti is the mayor of Christchurch . The Christchurch city highest elevation is 241.9 m (793.6 ft) . The density of  inhabitents in  the urban region of Christchurch is 2,305/km 2  (5,970/sq mi)
There are less than 5926 residents per sq mi in the urban region of Christchurch