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City of WyndhamPopulation forecast

Tarneit - Oakbank Riverdale

Population and age structure

Between 2021 and 2026, the age structure forecasts for Tarneit - Oakbank Riverdale indicate a 161.9% increase in males under working age, a 266.7% increase in males of retirement age, and a 155.2% increase in males 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 Wyndham 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
Tarneit - Oakbank Riverdale - Total males202120262041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 493913.72,32213.15,52810.6+4,589
5 to 969210.11,87410.65,39310.4+4,702
10 to 144266.21,1926.74,4358.5+4,009
15 to 192053.08614.93,3796.5+3,174
20 to 245307.71,1526.53,0335.8+2,502
25 to 2970510.31,7129.63,5256.8+2,820
30 to 341,08815.92,50114.15,28910.2+4,201
35 to 391,13216.52,55614.46,43112.3+5,300
40 to 445458.01,6949.55,40410.4+4,859
45 to 492313.47674.33,7507.2+3,519
50 to 541001.53472.02,3244.5+2,223
55 to 59861.31971.11,3752.6+1,289
60 to 64540.81480.87431.4+689
65 to 69560.81190.74740.9+418
70 to 74330.5740.43050.6+272
75 to 79190.3680.42280.4+210
80 to 8470.1590.31980.4+191
85 and over20.01090.62890.6+286
Total persons6,851100.017,751100.052,104100.0+45,252
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), December 2022.

Key findings

In 2021, the dominant age structure for males in Tarneit - Oakbank Riverdale was ages 35 to 39, which accounted for 16.5% of the total males.

The largest increase in males between 2021 and 2026 is forecast to be in ages 35 to 39, which is expected to increase by 1,424 and account for 14.4% of the total males.

The largest male 5 year age group in 2026 is 35 to 39 years, with a total of 2,556 males.

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