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LEARN MORE ABOUT .idIn 2021, the largest age group in Banksia Grove was 30 to 34 year olds. The group that changed the most since 2001 was 30 to 34 year olds, increasing by 1,066 people.
The Age Structure of Banksia Grove provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Banksia Grove'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 Banksia Grove'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 | |||||||
|---|---|---|---|---|---|---|---|
| Banksia Grove - Total persons (Enumerated) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Two Rocks % | Number | % | Two Rocks % | 2001 to 2021 |
| 0 to 4 | 1,122 | 10.1 | 6.8 | 152 | 13.6 | 5.9 | +970 |
| 5 to 9 | 1,140 | 10.3 | 8.7 | 164 | 14.6 | 7.0 | +976 |
| 10 to 14 | 849 | 7.6 | 8.5 | 126 | 11.2 | 7.9 | +723 |
| 15 to 19 | 744 | 6.7 | 5.3 | 45 | 4.0 | 4.1 | +699 |
| 20 to 24 | 688 | 6.2 | 4.6 | 79 | 7.0 | 3.1 | +609 |
| 25 to 29 | 983 | 8.8 | 4.9 | 117 | 10.4 | 3.8 | +866 |
| 30 to 34 | 1,199 | 10.8 | 6.4 | 133 | 11.9 | 5.3 | +1,066 |
| 35 to 39 | 1,133 | 10.2 | 5.9 | 109 | 9.7 | 7.5 | +1,024 |
| 40 to 44 | 833 | 7.5 | 6.1 | 68 | 6.1 | 7.7 | +765 |
| 45 to 49 | 641 | 5.8 | 6.5 | 42 | 3.7 | 6.0 | +599 |
| 50 to 54 | 554 | 5.0 | 8.1 | 27 | 2.4 | 7.1 | +527 |
| 55 to 59 | 406 | 3.7 | 6.4 | 12 | 1.1 | 8.3 | +394 |
| 60 to 64 | 330 | 3.0 | 6.4 | 20 | 1.8 | 8.5 | +310 |
| 65 to 69 | 215 | 1.9 | 5.1 | 9 | 0.8 | 7.2 | +206 |
| 70 to 74 | 150 | 1.3 | 4.9 | 12 | 1.1 | 5.1 | +138 |
| 75 to 79 | 72 | 0.6 | 2.7 | 3 | 0.3 | 4.0 | +69 |
| 80 to 84 | 36 | 0.3 | 2.0 | 3 | 0.3 | 0.9 | +33 |
| 85 and over | 18 | 0.2 | 0.8 | 0 | -- | 0.4 | +18 |
| Total population | 11,113 | 100.0 | 100.0 | 1,121 | 100.0 | 100.0 | +9,992 |
Dominant groups
Analysis of the five year age groups of Banksia Grove in 2021 compared to Two Rocks 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, 28.0% of the population was aged between 0 and 15, and 4.4% were aged 65 years and over, compared with 24.0% and 15.5% respectively for Two Rocks.
The major differences between the age structure of Banksia Grove and Two Rocks were:
- A larger percentage of persons aged 30 to 34 (10.8% compared to 6.4%)
- A larger percentage of persons aged 35 to 39 (10.2% compared to 5.9%)
- A larger percentage of persons aged 25 to 29 (8.8% compared to 4.9%)
- A smaller percentage of persons aged 70 to 74 (1.3% compared to 4.9%)
Emerging groups
From 2001 to 2021, Banksia Grove's population increased by 9,992 people (891.3%). This represents an average annual population change of 12.15% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 30 to 34 (+1,066 persons)
- 35 to 39 (+1,024 persons)
- 5 to 9 (+976 persons)
- 0 to 4 (+970 persons)
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