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City of SwanPopulation forecast

Gidgegannup

Population and age structure

Between 2021 and 2036, the age structure forecasts for Gidgegannup indicate a 69.0% increase in population under working age, a 79.1% increase in population of retirement age, and a 39.5% 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 Swan 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
Gidgegannup - Total persons202120362051Change between 2021 and 2051
Age group (years)Number%Number%Number%Number
0 to 41174.02275.13145.0+197
5 to 91565.32746.23796.1+223
10 to 141946.62886.54096.5+214
15 to 192297.82816.34086.5+178
20 to 241555.32014.52824.5+127
25 to 29973.31282.91772.8+80
30 to 341083.71824.12413.8+133
35 to 391635.52726.13695.9+206
40 to 441625.53207.24457.1+283
45 to 492709.23748.55358.5+264
50 to 5430110.23698.35378.6+235
55 to 592829.63477.85288.5+246
60 to 642398.13257.34567.3+217
65 to 691655.62756.23645.8+199
70 to 741254.32194.92894.6+163
75 to 79953.21563.52243.6+129
80 to 84401.4962.21642.6+123
85 and over441.5942.11352.2+92
Total persons2,942100.04,430100.06,253100.0+3,311
Source: Population and household forecasts, 2021 to 2051, prepared by .id (informed decisions), February 2024.

Key findings

In 2021, the dominant age structure for persons in Gidgegannup was ages 50 to 54, which accounted for 10.2% of the total persons.

The largest increase in persons between 2021 and 2036 is forecast to be in ages 40 to 44, which is expected to increase by 158 and account for 7.2% of the total persons.

The largest 5 year age group in 2036 is 45 to 49 years, with a total of 374 persons.

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