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City of WannerooPopulation forecast

Yanchep

Population and age structure

Between 2021 and 2031, the age structure forecasts for Yanchep indicate a 95.5% increase in population under working age, a 69.2% increase in population of retirement age, and a 176.9% 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
Yanchep - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 49458.31,9126.92,4716.5+1,526
5 to 91,0158.91,8076.52,4556.5+1,440
10 to 149298.11,9307.02,4706.5+1,540
15 to 197036.21,9527.12,2636.0+1,561
20 to 245314.72,0857.52,2205.9+1,689
25 to 297266.42,4568.92,4836.5+1,758
30 to 348497.42,6439.62,9597.8+2,109
35 to 398777.72,3068.33,1008.2+2,223
40 to 447286.42,0347.42,8477.5+2,119
45 to 497206.31,8856.82,6547.0+1,934
50 to 547356.41,4355.22,4966.6+1,762
55 to 596325.51,3895.02,4226.4+1,790
60 to 645184.51,2484.52,2125.8+1,694
65 to 694534.09423.41,6614.4+1,208
70 to 744083.65552.01,1953.1+787
75 to 793182.83791.48602.3+542
80 to 841801.63911.46341.7+454
85 and over1401.22701.05481.4+408
Total persons11,405100.027,620100.037,948100.0+26,544
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 Yanchep was ages 5 to 9, which accounted for 8.9% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 30 to 34, which is expected to increase by 1,794 and account for 9.6% of the total persons.

The largest 5 year age group in 2031 is 30 to 34 years, with a total of 2,643 persons.

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