City of KwinanaPopulation forecast
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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 the City of Kwinana 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, December 2017.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 183 Forecast persons aged 80-84,  2036: 333 Forecast persons aged 75-79,  2036: 551 Forecast persons aged 70-74,  2036: 736 Forecast persons aged 65-69,  2036: 965 Forecast persons aged 60-64,  2036: 1,203 Forecast persons aged 55-59,  2036: 1,448 Forecast persons aged 50-54,  2036: 1,719 Forecast persons aged 45-49,  2036: 1,862 Forecast persons aged 40-44,  2036: 1,935 Forecast persons aged 35-39,  2036: 2,109 Forecast persons aged 30-34,  2036: 2,212 Forecast persons aged 25-29,  2036: 2,215 Forecast persons aged 20-24,  2036: 2,012 Forecast persons aged 15-19,  2036: 1,822 Forecast persons aged 10-14,  2036: 1,864 Forecast persons aged 5-9,  2036: 2,099 Forecast persons aged 0-4,  2036: 2,372 Forecast persons aged 85+,  2026: 79 Forecast persons aged 80-84,  2026: 206 Forecast persons aged 75-79,  2026: 337 Forecast persons aged 70-74,  2026: 475 Forecast persons aged 65-69,  2026: 709 Forecast persons aged 60-64,  2026: 921 Forecast persons aged 55-59,  2026: 1,133 Forecast persons aged 50-54,  2026: 1,397 Forecast persons aged 45-49,  2026: 1,767 Forecast persons aged 40-44,  2026: 2,111 Forecast persons aged 35-39,  2026: 2,289 Forecast persons aged 30-34,  2026: 2,447 Forecast persons aged 25-29,  2026: 2,407 Forecast persons aged 20-24,  2026: 2,019 Forecast persons aged 15-19,  2026: 1,813 Forecast persons aged 10-14,  2026: 1,849 Forecast persons aged 5-9,  2026: 2,129 Forecast persons aged 0-4,  2026: 2,541 Forecast persons aged 85+,  2016: 13 Forecast persons aged 80-84,  2016: 34 Forecast persons aged 75-79,  2016: 110 Forecast persons aged 70-74,  2016: 230 Forecast persons aged 65-69,  2016: 342 Forecast persons aged 60-64,  2016: 453 Forecast persons aged 55-59,  2016: 621 Forecast persons aged 50-54,  2016: 807 Forecast persons aged 45-49,  2016: 1,066 Forecast persons aged 40-44,  2016: 1,306 Forecast persons aged 35-39,  2016: 1,670 Forecast persons aged 30-34,  2016: 2,267 Forecast persons aged 25-29,  2016: 1,836 Forecast persons aged 20-24,  2016: 1,333 Forecast persons aged 15-19,  2016: 1,087 Forecast persons aged 10-14,  2016: 1,149 Forecast persons aged 5-9,  2016: 1,632 Forecast persons aged 0-4,  2016: 1,986
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 2017.
Forecast change in age structure - 5 year age groups
Forecast change in age structure - 5 year age groups Forecast persons aged 85+,  2026 to 2036: 104 Forecast persons aged 80-84,  2026 to 2036: 127 Forecast persons aged 75-79,  2026 to 2036: 213 Forecast persons aged 70-74,  2026 to 2036: 261 Forecast persons aged 65-69,  2026 to 2036: 256 Forecast persons aged 60-64,  2026 to 2036: 282 Forecast persons aged 55-59,  2026 to 2036: 315 Forecast persons aged 50-54,  2026 to 2036: 322 Forecast persons aged 45-49,  2026 to 2036: 94 Forecast persons aged 40-44,  2026 to 2036: -177 Forecast persons aged 35-39,  2026 to 2036: -180 Forecast persons aged 30-34,  2026 to 2036: -235 Forecast persons aged 25-29,  2026 to 2036: -193 Forecast persons aged 20-24,  2026 to 2036: -7 Forecast persons aged 15-19,  2026 to 2036: 10 Forecast persons aged 10-14,  2026 to 2036: 16 Forecast persons aged 5-9,  2026 to 2036: -30 Forecast persons aged 0-4,  2026 to 2036: -169 Forecast persons aged 85+,  2016 to 2026: 66 Forecast persons aged 80-84,  2016 to 2026: 172 Forecast persons aged 75-79,  2016 to 2026: 227 Forecast persons aged 70-74,  2016 to 2026: 245 Forecast persons aged 65-69,  2016 to 2026: 367 Forecast persons aged 60-64,  2016 to 2026: 468 Forecast persons aged 55-59,  2016 to 2026: 512 Forecast persons aged 50-54,  2016 to 2026: 590 Forecast persons aged 45-49,  2016 to 2026: 701 Forecast persons aged 40-44,  2016 to 2026: 805 Forecast persons aged 35-39,  2016 to 2026: 619 Forecast persons aged 30-34,  2016 to 2026: 180 Forecast persons aged 25-29,  2016 to 2026: 571 Forecast persons aged 20-24,  2016 to 2026: 686 Forecast persons aged 15-19,  2016 to 2026: 726 Forecast persons aged 10-14,  2016 to 2026: 700 Forecast persons aged 5-9,  2016 to 2026: 497 Forecast persons aged 0-4,  2016 to 2026: 555
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, December 2017.

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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