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Porirua CityPopulation forecast

Pukerua Bay-Plimmerton

Population and age structure

Between 2013 and 2028, the age structure forecasts for Pukerua Bay-Plimmerton indicate a 57.6% increase in population under working age, a 98.9% increase in population of retirement age, and a 57.8% increase in population of working age.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of Pukerua Bay-Plimmerton is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - 5 year age groups
Pukerua Bay-Plimmerton - Total persons201320282043Change between 2013 and 2043
Age group (years)Number%Number%Number%Number
0 to 43197.75207.76506.6+331
5 to 92947.14847.16696.8+375
10 to 142856.84116.16166.3+332
15 to 192506.03294.95275.4+277
20 to 241814.32593.83934.0+212
25 to 291684.03184.73533.6+185
30 to 341974.74216.24514.6+254
35 to 392897.05398.06176.3+328
40 to 443628.75868.67477.6+386
45 to 493628.75147.68228.4+460
50 to 543358.04757.08028.2+468
55 to 593117.54626.87387.5+427
60 to 642826.84156.16456.6+363
65 to 692285.53355.05495.6+321
70 to 741443.52643.94594.7+314
75 to 79691.72183.23683.7+298
80 to 84451.11392.12322.4+187
85 and over370.9841.21791.8+142
Total persons4,159100.06,774100.09,818100.0+5,660
Population and household forecasts, 2013 to 2043, prepared by .id , the population experts, January 2020.

Key findings

In 2013, the dominant age structure for persons in Pukerua Bay-Plimmerton was ages 40 to 44, which accounted for 8.7% of the total persons.

The largest increase in persons between 2013 and 2028 is forecast to be in ages 35 to 39, which is expected to increase by 249 and account for 8.0% of the total persons.

The largest 5 year age group in 2028 is 40 to 44 years, with a total of 586 persons.

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