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LEARN MORE ABOUT .idIn 2021, the largest age group in Casey Growth Area was 35 to 39 year olds. The group that changed the most since 2011 was 35 to 39 year olds, increasing by 9,629 people.
The Age Structure of Casey Growth Area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Casey Growth Area's residential role and function and how it is likely to change in the future.
Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.
To get a more complete picture Casey Growth Area's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.
Q:
Derived from the Census question:
'What is the person's date of birth or age?'
| Age structure - Five year age groups | |||||||
|---|---|---|---|---|---|---|---|
| Casey Growth Area - Total persons (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | City of Casey % | Number | % | City of Casey % | 2011 to 2021 |
| 0 to 4 | 9,355 | 11.3 | 7.7 | 476 | 10.2 | 8.0 | +8,879 |
| 5 to 9 | 8,359 | 10.1 | 7.9 | 357 | 7.7 | 7.6 | +8,003 |
| 10 to 14 | 5,891 | 7.1 | 7.2 | 315 | 6.8 | 7.8 | +5,576 |
| 15 to 19 | 4,396 | 5.3 | 6.4 | 245 | 5.3 | 7.7 | +4,151 |
| 20 to 24 | 4,918 | 5.9 | 6.7 | 393 | 8.4 | 6.7 | +4,525 |
| 25 to 29 | 7,272 | 8.8 | 7.2 | 615 | 13.2 | 7.0 | +6,657 |
| 30 to 34 | 9,491 | 11.5 | 8.1 | 510 | 10.9 | 7.4 | +8,981 |
| 35 to 39 | 10,044 | 12.1 | 8.7 | 415 | 8.9 | 8.0 | +9,629 |
| 40 to 44 | 6,660 | 8.0 | 7.2 | 300 | 6.5 | 7.9 | +6,360 |
| 45 to 49 | 4,519 | 5.5 | 6.4 | 238 | 5.1 | 7.3 | +4,281 |
| 50 to 54 | 3,232 | 3.9 | 6.0 | 227 | 4.9 | 6.5 | +3,005 |
| 55 to 59 | 2,476 | 3.0 | 5.3 | 150 | 3.2 | 5.2 | +2,326 |
| 60 to 64 | 1,938 | 2.3 | 4.6 | 119 | 2.6 | 4.2 | +1,819 |
| 65 to 69 | 1,531 | 1.9 | 3.6 | 110 | 2.4 | 2.9 | +1,421 |
| 70 to 74 | 1,273 | 1.5 | 2.8 | 82 | 1.8 | 2.1 | +1,191 |
| 75 to 79 | 788 | 1.0 | 1.9 | 35 | 0.8 | 1.6 | +753 |
| 80 to 84 | 373 | 0.5 | 1.3 | 32 | 0.7 | 1.2 | +341 |
| 85 and over | 218 | 0.3 | 1.1 | 34 | 0.7 | 1.0 | +184 |
| Total population | 82,744 | 100.0 | 100.0 | 4,661 | 100.0 | 100.0 | +78,083 |
Dominant groups
Analysis of the five year age groups of Casey Growth Area in 2021 compared to the City of Casey shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 28.5% of the population was aged between 0 and 15, and 5.1% were aged 65 years and over, compared with 22.8% and 10.7% respectively for the City of Casey.
The major differences between the age structure of Casey Growth Area and the City of Casey were:
- A larger percentage of persons aged 0 to 4 (11.3% compared to 7.7%)
- A larger percentage of persons aged 35 to 39 (12.1% compared to 8.7%)
- A larger percentage of persons aged 30 to 34 (11.5% compared to 8.1%)
- A smaller percentage of persons aged 55 to 59 (3.0% compared to 5.3%)
Emerging groups
From 2011 to 2021, Casey Growth Area's population increased by 78,083 people (1675.2%). This represents an average annual population change of 33.33% per year over the period.
The largest changes in age structure in this area between 2011 and 2021 were in the age groups:
- 35 to 39 (+9,629 persons)
- 30 to 34 (+8,981 persons)
- 0 to 4 (+8,879 persons)
- 5 to 9 (+8,003 persons)
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