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City of KwinanaPopulation forecast


Population and age structure

Between 2016 and 2026, the age structure forecasts for Wandi indicate a 138.9% increase in population under working age, a 180.9% increase in population of retirement age, and a 66.9% 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 Wandi 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
Wandi - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 42779.25499.75808.5+303
5 to 92187.35529.75768.5+358
10 to 141434.84237.45037.4+360
15 to 191525.13506.24727.0+320
20 to 242357.84057.15117.5+276
25 to 2944814.95119.05588.2+110
30 to 3437812.65249.25488.1+170
35 to 392528.44828.54847.1+232
40 to 441755.83916.94236.2+248
45 to 491635.43325.94166.1+253
50 to 541224.12684.73755.5+253
55 to 591244.12244.03154.6+191
60 to 641394.61652.92483.7+109
65 to 69933.11452.52053.0+112
70 to 74491.61412.51632.4+114
75 to 79240.8981.71402.1+116
80 to 84100.3500.91081.6+98
85 and over20.1661.21732.5+171
Total persons3,004100.05,676100.06,796100.0+3,792
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, March 2018.

Key findings

In 2016, the dominant age structure for persons in Wandi was ages 25 to 29, which accounted for 14.9% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 5 to 9, which is expected to increase by 334 and account for 9.7% of the total persons.

The largest 5 year age group in 2026 is 5 to 9 years, with a total of 552 persons.

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