The coordinates of the city are 41°43′N 44°47′E﻿ / ﻿41.717°N 44.783°E . Christchurch is at an elevation of 13.2 ft . Christchurch is named for Harry Culver . The city land area is 47.35 sq mi (122.63 km 2 ) . 14,100/km 2  (37,000/sq mi) is the density of people in  the urban region of Christchurch . On March 6, 1836 (city) the city was incorporated . The city Christchurch demonym is Guayaquilean . 662.1/km 2  (1,715/sq mi) is the density of inhabitents in  the metro region of Christchurch . Christchurch has Population (2012): 3,937,451 population . The city Christchurch province is Cebu (geographically only) .  The city area code is 22 . The area of the urban region is 9,014.3 sq mi (3,843.8 km2) . The highest elevation of Christchurch is 33 m (108 ft) . The lowest elevation of Christchurch is 1,250 ft . The water area of the city is 0.736 sq mi (1.905 sq km) 36.58% . The metro region has Population: 12,491,300 (2016) population
Christchurch was constituted as a city in 1842