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City of ArmadalePopulation forecast

City of Armadale

Population and age structure

Between 2016 and 2031, the age structure forecasts for City of Armadale indicate a 62.9% increase in population under working age, a 78.7% increase in population of retirement age, and a 49.1% 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 Armadale 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
City of Armadale - Total persons201620312041Change between 2016 and 2041
Age group (years)Number%Number%Number%Number
0 to 47,3618.910,9558.612,6618.3+5,300
5 to 96,0907.410,2188.011,9047.8+5,814
10 to 144,9416.08,7876.910,5166.9+5,575
15 to 194,8575.97,7166.09,3466.2+4,489
20 to 245,6576.97,8906.29,3806.2+3,723
25 to 297,0788.69,5527.510,9727.2+3,894
30 to 347,5369.210,6898.412,1678.0+4,631
35 to 396,2307.610,4128.112,0347.9+5,804
40 to 445,3406.59,4517.411,0717.3+5,731
45 to 494,9946.18,1896.49,7466.4+4,752
50 to 544,8695.96,8325.38,6305.7+3,761
55 to 594,3715.35,8054.57,4844.9+3,113
60 to 643,8944.75,2094.16,4124.2+2,518
65 to 693,3874.14,6393.65,3823.5+1,995
70 to 742,2232.73,8533.04,4712.9+2,248
75 to 791,5911.93,1092.43,7692.5+2,178
80 to 849721.22,3551.82,9581.9+1,986
85 and over8891.12,2341.72,9932.0+2,104
Total persons82,280100.0127,895100.0151,896100.0+69,616
Source: Population and household forecasts, 2016 to 2041, prepared by .id (informed decisions), December 2018.

Key findings

In 2016, the dominant age structure for persons in City of Armadale was ages 30 to 34, which accounted for 9.2% of the total persons.

The largest increase in persons between 2016 and 2031 is forecast to be in ages 35 to 39, which is expected to increase by 4,182 and account for 8.1% of the total persons.

The largest 5 year age group in 2031 is 0 to 4 years, with a total of 10,955 persons.

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