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LEARN MORE ABOUT .idIn 2021, the largest age group in Botanic Ridge was 0 to 4 year olds. The group that changed the most since 1991 was 0 to 4 year olds, increasing by 730 people.
The Age Structure of Botanic Ridge provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Botanic Ridge'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 Botanic Ridge'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 | |||||||
|---|---|---|---|---|---|---|---|
| Botanic Ridge - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Casey % | Number | % | City of Casey % | 1991 to 2021 |
| 0 to 4 | 732 | 10.9 | 7.7 | 2 | 3.3 | 10.4 | +730 |
| 5 to 9 | 682 | 10.2 | 7.9 | 6 | 8.3 | 9.7 | +676 |
| 10 to 14 | 478 | 7.1 | 7.2 | 6 | 8.3 | 8.3 | +472 |
| 15 to 19 | 343 | 5.1 | 6.4 | 5 | 7.8 | 7.2 | +337 |
| 20 to 24 | 349 | 5.2 | 6.7 | 2 | 3.9 | 7.9 | +346 |
| 25 to 29 | 533 | 7.9 | 7.2 | 2 | 3.3 | 9.9 | +531 |
| 30 to 34 | 689 | 10.3 | 8.1 | 2 | 3.3 | 10.4 | +687 |
| 35 to 39 | 653 | 9.7 | 8.7 | 8 | 12.2 | 9.0 | +644 |
| 40 to 44 | 503 | 7.5 | 7.2 | 9 | 13.3 | 7.5 | +493 |
| 45 to 49 | 404 | 6.0 | 6.4 | 7 | 10.0 | 5.2 | +397 |
| 50 to 54 | 374 | 5.6 | 6.0 | 2 | 3.3 | 3.7 | +372 |
| 55 to 59 | 299 | 4.5 | 5.3 | 1 | 1.7 | 2.9 | +298 |
| 60 to 64 | 279 | 4.2 | 4.6 | 2 | 3.3 | 2.7 | +277 |
| 65 to 69 | 185 | 2.8 | 3.6 | 2 | 3.9 | 2.0 | +182 |
| 70 to 74 | 115 | 1.7 | 2.8 | 1 | 1.7 | 1.4 | +114 |
| 75 to 79 | 63 | 0.9 | 1.9 | 2 | 2.8 | 0.9 | +61 |
| 80 to 84 | 22 | 0.3 | 1.3 | 4 | 5.6 | 0.5 | +18 |
| 85 and over | 14 | 0.2 | 1.1 | 2 | 3.9 | 0.3 | +11 |
| Total population | 6,717 | 100.0 | 100.0 | 72 | 100.0 | 100.0 | +6,645 |
Dominant groups
Analysis of the five year age groups of Botanic Ridge 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, 28.2% of the population was aged between 0 and 15, and 5.9% 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 Botanic Ridge and the City of Casey were:
- A larger percentage of persons aged 0 to 4 (10.9% compared to 7.7%)
- A larger percentage of persons aged 5 to 9 (10.2% compared to 7.9%)
- A larger percentage of persons aged 30 to 34 (10.3% compared to 8.1%)
- A smaller percentage of persons aged 20 to 24 (5.2% compared to 6.7%)
Emerging groups
From 1991 to 2021, Botanic Ridge's population increased by 6,645 people (9229.2%). This represents an average annual population change of 16.32% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 0 to 4 (+730 persons)
- 30 to 34 (+687 persons)
- 5 to 9 (+676 persons)
- 35 to 39 (+644 persons)
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