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City of GosnellsPopulation forecast


Population and age structure

Between 2016 and 2026, the age structure forecasts for Maddington indicate a 27.1% increase in population under working age, a 35.1% increase in population of retirement age, and a 27.6% 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 Maddington 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
Maddington - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 49938.41,1567.61,2557.4+262
5 to 97996.81,0236.81,1196.6+320
10 to 146675.79476.31,0316.0+364
15 to 197426.39866.51,1026.5+360
20 to 248627.31,1517.61,3047.6+442
25 to 299618.21,3148.71,4318.4+470
30 to 341,0979.31,2558.31,3517.9+254
35 to 399087.71,1147.41,2197.1+311
40 to 448086.91,0296.81,1036.5+295
45 to 497066.09396.21,0346.1+328
50 to 546165.28775.81,0045.9+388
55 to 595454.67264.88605.0+315
60 to 645524.75613.77234.2+171
65 to 694994.24963.36223.6+123
70 to 743543.05303.55603.3+206
75 to 792802.44503.04812.8+201
80 to 842131.82671.83852.3+172
85 and over1781.53162.14792.8+301
Total persons11,780100.015,136100.017,064100.0+5,284
Source: Population and household forecasts, 2016 to 2036, prepared by .id (informed decisions), August 2017.

Key findings

In 2016, the dominant age structure for persons in Maddington was ages 30 to 34, which accounted for 9.3% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 25 to 29, which is expected to increase by 353 and account for 8.7% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 1,314 persons.

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