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Porirua CityPopulation forecast

Porirua East-Ranui Heights

Population and age structure

Between 2013 and 2028, the age structure forecasts for Porirua East-Ranui Heights indicate a 7.1% decrease in population under working age, a 77.6% increase in population of retirement age, and a 3.0% decrease 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 Porirua East-Ranui Heights 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
Porirua East-Ranui Heights - Total persons201320282048Change between 2013 and 2048
Age group (years)Number%Number%Number%Number
0 to 42898.22707.33667.4+77
5 to 92356.62196.03006.1+66
10 to 142406.82216.02895.9+49
15 to 193118.82506.83276.6+17
20 to 242667.52376.43166.4+49
25 to 292136.02546.93176.4+104
30 to 342426.82667.23336.8+91
35 to 392507.12296.23166.4+67
40 to 442727.72195.93066.2+35
45 to 492416.82145.82966.0+54
50 to 542406.82266.12815.7+41
55 to 592065.82396.52675.4+61
60 to 641925.42276.22735.5+81
65 to 691474.12105.72665.4+119
70 to 74852.41634.42394.8+154
75 to 79591.71313.62164.4+157
80 to 84250.7631.71312.7+106
85 and over270.8421.1861.7+59
Total persons3,540100.03,681100.04,926100.0+1,386
Population and household forecasts, 2013 to 2048, prepared by .id (informed decisions), November 2019.

Key findings

In 2013, the dominant age structure for persons in Porirua East-Ranui Heights was ages 15 to 19, which accounted for 8.8% of the total persons.

The largest increase in persons between 2013 and 2028 is forecast to be in ages 70 to 74, which is expected to increase by 78 and account for 4.4% of the total persons.

The largest 5 year age group in 2028 is 0 to 4 years, with a total of 270 persons.

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