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Porirua CityPopulation forecast

Whitby East

Population and age structure

Between 2013 and 2028, the age structure forecasts for Whitby East indicate a 42.1% increase in population under working age, a 143.7% increase in population of retirement age, and a 41.3% 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 Whitby East 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
Whitby East - Total persons201320282048Change between 2013 and 2048
Age group (years)Number%Number%Number%Number
0 to 43686.75616.75216.3+153
5 to 94388.05967.15396.5+101
10 to 144197.75847.05316.4+112
15 to 193806.95106.14775.8+98
20 to 242915.33654.43584.3+67
25 to 291733.23023.62943.6+121
30 to 342704.94064.93624.4+91
35 to 393937.25576.74745.7+81
40 to 444468.26567.95626.8+115
45 to 495329.76637.95837.1+52
50 to 544698.66157.45706.9+101
55 to 593656.75516.65636.8+198
60 to 643276.05256.35416.5+214
65 to 692324.24685.65156.2+283
70 to 741492.73824.64845.9+334
75 to 79841.53063.74155.0+331
80 to 84601.11672.02853.5+225
85 and over721.31321.61942.3+122
Total persons5,469100.08,345100.08,267100.0+2,798
Population and household forecasts, 2013 to 2048, prepared by .id , the population experts, November 2019.

Key findings

In 2013, the dominant age structure for persons in Whitby East was ages 45 to 49, which accounted for 9.7% of the total persons.

The largest increase in persons between 2013 and 2028 is forecast to be in ages 65 to 69, which is expected to increase by 236 and account for 5.6% of the total persons.

The largest 5 year age group in 2028 is 45 to 49 years, with a total of 663 persons.

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