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City of CaseyPopulation forecast

City of Casey

Population and age structure

Between 2021 and 2034, the age structure forecasts for City of Casey indicate a 35.7% increase in population under working age, a 67.3% increase in population of retirement age, and a 39.7% 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 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 - Service age groups
City of Casey - Total persons202120342046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
Babies and pre-schoolers (0 to 4)28,6807.838,9717.440,4397.0+11,759
Primary schoolers (5 to 11)40,42510.954,15810.357,14810.0+16,723
Secondary schoolers (12 to 17)30,1608.243,3298.347,0248.2+16,864
Tertiary education and independence (18 to 24)34,0599.247,7449.150,8328.9+16,773
Young workforce (25 to 34)57,27615.577,24014.878,68413.7+21,408
Parents and homebuilders (35 to 49)82,08622.2119,20022.8124,22221.6+42,136
Older workers and pre-retirees (50 to 59)41,36411.255,95810.765,79211.5+24,428
Empty nesters and retirees (60 to 69)29,5698.040,1327.748,0698.4+18,500
Seniors (70 to 84)21,8265.937,7757.248,7278.5+26,901
Elderly aged (85 and over)4,0021.18,8921.713,1872.3+9,185
Total persons369,447100.0523,399100.0574,124100.0+204,677
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), October 2023.

Key findings

In 2021, the dominant age structure for persons in City of Casey was ages Parents and homebuilders (35 to 49), which accounted for 22.2% of the total persons.

The largest increase in persons between 2021 and 2034 is forecast to be in ages Parents and homebuilders (35 to 49), which is expected to increase by 37,114 and account for 22.8% of the total persons.

The largest 5 year age group in 2034 is Parents and homebuilders (35 to 49) years, with a total of 119,200 persons.

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