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City of KwinanaPopulation forecast

Bollard Bulrush District

Population and age structure

Between 2016 and 2026, the age structure forecasts for Bollard Bulrush District indicate a 36.8% increase in population under working age, a 147.7% increase in population of retirement age, and a 47.1% 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 Bollard Bulrush District 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
Bollard Bulrush District - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 41,98611.12,5419.52,3728.6+386
5 to 91,6329.12,1298.02,0997.6+467
10 to 141,1496.41,8496.91,8646.7+715
15 to 191,0876.11,8136.81,8226.6+735
20 to 241,3337.42,0197.62,0127.3+679
25 to 291,83610.22,4079.02,2158.0+379
30 to 342,26712.62,4479.22,2128.0-55
35 to 391,6709.32,2898.62,1097.6+439
40 to 441,3067.32,1117.91,9357.0+629
45 to 491,0665.91,7676.61,8626.7+796
50 to 548074.51,3975.21,7196.2+912
55 to 596213.51,1334.31,4485.2+827
60 to 644532.59213.51,2034.4+750
65 to 693421.97092.79653.5+623
70 to 742301.34751.87362.7+506
75 to 791100.63371.35512.0+441
80 to 84340.22060.83331.2+299
85 and over130.1790.31830.7+170
Total persons17,942100.026,629100.027,639100.0+9,697
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 Bollard Bulrush District was ages 30 to 34, which accounted for 12.6% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 40 to 44, which is expected to increase by 805 and account for 7.9% of the total persons.

The largest 5 year age group in 2026 is 0 to 4 years, with a total of 2,541 persons.

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