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Age and sex

More young males but fewer young females

Of greater Christchurch people aged 15–29 years at the 2013 Census, 52.3 percent were men and 47.7 percent were women. This means there were 4,131 more men than women in this age group. Since 2006, the number of men aged 15–29 years increased by 1,974, whereas the number of women decreased by 1,335.

Overall, 49.3 percent of the population of greater Christchurch was male and 50.7 percent was female.
The median age of residents in greater Christchurch, compared with the national median, was:

  • Waimakariri district – 42.9 years
  • Christchurch city – 38.6 years
  • Selwyn district – 38.7 years
  • New Zealand – 38.0 years.

In both Christchurch city and Waimakariri, there was a decrease in people aged 30–39 years between 2006 and 2013:

  • Christchurch city – down 15.2 percent (down from 51,171 people to 43,395)
  • Waimakariri district – down 17.2 percent (down from 6,087 people to 5,037).

This compared with a 9.3 percent decrease in this age group for New Zealand overall.

 Graph, Percentage change of age groups, greater Christchurch territorial authorities, 2006 to 2013 Censuses.

Fewer children in greater Christchurch

There were fewer children aged 5–14 years living in greater Christchurch at the 2013 Census – down 4.0 percent from 2006, compared with a national decrease of 3.2 percent.

In greater Christchurch, changes in the numbers of children aged 5–14 years were:

  • Christchurch city – down 4,293 (9.7 percent)
  • Selwyn district – up 1,563 (29.3 percent)
  • Waimakariri district – up 453 (6.6 percent).

There were slightly more children aged 0–4 years living in greater Christchurch at the 2013 Census – up 0.6 percent from 2006, compared with a national increase of 6.2 percent.

In greater Christchurch, changes in the numbers of children aged 0–4 years were:

  • Christchurch city – down 525 (2.4 percent)
  • Selwyn district – up 636 (26.6 percent)
  • Waimakariri district – up 42 (1.5 percent).

There were fewer people aged 15–19 years living in greater Christchurch at the 2013 Census – down 4.5 percent from 2006, compared with a national decrease of 1.5 percent.

Change in location of children

By 2013, the greater Christchurch areas that had gained the most young people (aged 0–15 years) were:

  • Rolleston (south of Christchurch city)
  • Lehmans (in Rangiora, to the north of Christchurch city)
  • Pegasus (north of Christchurch city).

By 2013, the areas with the largest decreases in young people were all at least partly within Canterbury Earthquake Recovery Authority's residential red zones.

Change in population aged 0–15 years
For selected greater Christchurch area units
2006 and 2013 Censuses
Area unit 2006 Census 2013 Census Change 2006–2013 Censuses
Number Percent
Increase
Rolleston South West 144 621 477 331.3
Lehmans 63 417 354 561.9
Rolleston North West 171 504 333 194.7
Rolleston North East 339 618 279 82.3
Pegasus  6 270 264 4,400.0
Decrease
Bexley 999 528 -471 -47.1
Aranui  1,356 942 -414 -30.5
Dallington  783  378 -405 -51.7
Burwood 567 183 -384 -67.7
Kaiapoi East 555 180 -375 -67.6
Source: Statistics New Zealand

 Map, Number of children aged 0 to 15 years, by greater Christchurch area unit, 2013 Census.  

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