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City of CaseyPopulation forecast

City of Casey

Population and age structure

Between 2021 and 2036, the age structure forecasts for City of Casey indicate a 37.0% increase in males under working age, a 75.1% increase in males of retirement age, and a 42.5% 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 Casey 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 Casey - Total males202120362046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 414,7308.020,2307.620,7017.3+5,971
5 to 914,9358.120,0237.520,8027.3+5,867
10 to 1413,9157.519,4377.320,3257.1+6,410
15 to 1912,0386.518,4136.919,4886.8+7,450
20 to 2413,0477.118,0636.818,5916.5+5,544
25 to 2913,6497.418,2606.818,2566.4+4,607
30 to 3414,5087.820,1527.520,3177.1+5,809
35 to 3916,0198.721,9338.222,1947.8+6,175
40 to 4413,4677.320,5797.720,7947.3+7,327
45 to 4911,8066.418,0566.818,8566.6+7,050
50 to 5410,8175.915,8775.917,3126.1+6,495
55 to 599,7795.313,3635.015,4185.4+5,639
60 to 648,1854.411,0404.113,0514.6+4,866
65 to 696,2653.49,0053.410,4653.7+4,200
70 to 744,8512.67,5352.88,8253.1+3,974
75 to 793,3611.86,2302.37,6472.7+4,286
80 to 842,0551.14,5781.76,1442.2+4,089
85 and over1,4690.84,1761.65,8502.1+4,381
Total persons184,896100.0266,950100.0285,036100.0+100,140
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), October 2023.

Key findings

In 2021, the dominant age structure for males in City of Casey was ages 35 to 39, which accounted for 8.7% of the total males.

The largest increase in males between 2021 and 2036 is forecast to be in ages 40 to 44, which is expected to increase by 7,112 and account for 7.7% of the total males.

The largest male 5 year age group in 2036 is 35 to 39 years, with a total of 21,933 males.

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