Between 2016 and 2017 the city's estimated population increased by 1.7 per cent, slightly lower than the national average of 2.1 per cent.
Prior to the 2010/2011 earthquakes, population growth was relatively steady, averaging 1 per cent growth per year. In the two years following the 2010/2011 earthquakes, the overall population of Christchurch City decreased by 21,200 (-6 per cent). The estimated population has increased annually since July 2012 and has now surpassed the population prior to the earthquake series (376,300).
- View spreadsheet [XLSX, 23 KB] [Excel, 20KB] containing population estimates for each area unit in Christchurch City, 1996–2017.
Waimakariri and Selwyn districts
Waimakairi District has long been the more populated district out of Christchurch City's two neighbouring districts. At June 2017, Christchurch's other neighbouring district Selwyn equalled Waimakariri's population; each had an estimated 59,300 residents. Together they make up almost 25 per cent of the total population of all three districts in Greater Christchurch.
Between 2016 and 2017, Selwyn and Waimakariri Districts experienced the second and eleventh fastest growth in the country respectively (out of 67 territorial authorities). Selwyn District's annual increase was 5.7 per cent while Waimakariri District's was 2.5 per cent (compared with 2.1 per cent for the whole country). Combined the population growth was 4,500 new residents, compared with Christchurch City's 6,500 new residents.
- The most recent subnational population estimates can be found here.(external link)