Between 2015 and 2016 the city's estimated population increased by 2%, similar to the national average of 2.1%. This is the city's highest annual percentage increase since 2003, when annual growth was also 2%.
Prior to the 2010/2011 earthquakes, population growth was relatively steady, averaging 1% growth per year. In the two years following the 2010/2011 earthquakes, the overall population of Christchurch City decreased by 21,200 (-6%). The estimated population has increased annually since July 2012 and has almost recovered to the pre-quake level that it was in 2010 (376,300).
- View spreadsheet [XLSX, 20 KB] [Excel, 20KB] containing population estimates for each area unit in Christchurch City since 1996.
Waimakariri and Selwyn districts
At June 2016, neighbouring Selwyn District had an estimated 56,200 residents and neighbouring Waimakariri an estimated 57,800 residents. Together they make up almost 25% of the total population of all three districts in Greater Christchurch.
Between 2015 and 2016, Selwyn and Waimakariri Districts experienced the second and eight fastest growth in the country respectively (out of 68 territorial authorities). Selwyn District's annual increase was 6.7% while Waimakariri District's was 2.6% (compared with 2.1% for the whole country). Combined the population growth was 5000 new residents, compared with Christchurch City's 7500 new residents.
- The most recent subnational population estimates can be found here (external link) .