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City of WannerooPopulation forecast

City of Wanneroo

Population and age structure

Between 2021 and 2031, the age structure forecasts for City of Wanneroo indicate a 22.7% increase in population under working age, a 60.9% increase in population of retirement age, and a 41.3% 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 Wanneroo 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 Wanneroo - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 415,5807.219,6376.528,6706.6+13,090
5 to 916,5387.619,4086.427,6096.3+11,071
10 to 1416,0447.420,0596.626,7556.1+10,711
15 to 1914,3746.620,9246.925,9335.9+11,559
20 to 2414,0316.522,1587.327,6656.3+13,634
25 to 2914,3776.622,4117.429,6446.8+15,267
30 to 3416,3017.522,4417.432,1667.4+15,865
35 to 3917,1117.921,5717.132,8667.5+15,754
40 to 4414,9286.922,0337.330,5617.0+15,633
45 to 4915,0687.020,9516.927,9456.4+12,877
50 to 5414,4656.717,8095.926,5286.1+12,063
55 to 5912,2895.716,7285.525,9795.9+13,689
60 to 6410,0104.614,9935.023,4475.4+13,437
65 to 697,9663.712,2974.118,2944.2+10,328
70 to 746,9123.29,5733.215,6663.6+8,754
75 to 794,6532.17,7392.613,8373.2+9,183
80 to 843,1731.56,1092.010,9662.5+7,793
85 and over2,6141.25,0151.712,4852.9+9,872
Total persons216,435100.0301,855100.0437,016100.0+220,581
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), March 2024.

Key findings

In 2021, the dominant age structure for persons in City of Wanneroo was ages 35 to 39, which accounted for 7.9% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 20 to 24, which is expected to increase by 8,126 and account for 7.3% of the total persons.

The largest 5 year age group in 2031 is 30 to 34 years, with a total of 22,441 persons.

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