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LEARN MORE ABOUT .idIn 2021, the largest age group in Iluka was 50 to 54 year olds. The group that changed the most since 1991 was 50 to 54 year olds, increasing by 593 people.
The Age Structure of Iluka provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Iluka'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 Iluka'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 | |||||||
|---|---|---|---|---|---|---|---|
| Iluka - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Joondalup % | Number | % | City of Joondalup % | 1991 to 2021 |
| 0 to 4 | 194 | 3.5 | 5.5 | 17 | 9.8 | 8.5 | +176 |
| 5 to 9 | 299 | 5.4 | 6.5 | 22 | 12.3 | 10.1 | +277 |
| 10 to 14 | 443 | 8.0 | 7.2 | 15 | 8.7 | 10.3 | +427 |
| 15 to 19 | 518 | 9.4 | 6.6 | 12 | 6.9 | 9.2 | +506 |
| 20 to 24 | 387 | 7.0 | 5.7 | 7 | 3.9 | 5.7 | +380 |
| 25 to 29 | 163 | 2.9 | 4.6 | 11 | 6.5 | 6.2 | +151 |
| 30 to 34 | 147 | 2.7 | 5.5 | 22 | 12.7 | 8.8 | +124 |
| 35 to 39 | 205 | 3.7 | 6.6 | 21 | 11.7 | 10.4 | +184 |
| 40 to 44 | 331 | 6.0 | 6.7 | 15 | 8.4 | 10.5 | +316 |
| 45 to 49 | 482 | 8.7 | 7.0 | 11 | 6.2 | 6.5 | +471 |
| 50 to 54 | 601 | 10.8 | 7.1 | 8 | 4.6 | 3.9 | +593 |
| 55 to 59 | 588 | 10.6 | 6.8 | 4 | 2.6 | 2.6 | +583 |
| 60 to 64 | 461 | 8.3 | 6.5 | 3 | 2.1 | 2.2 | +457 |
| 65 to 69 | 313 | 5.6 | 5.9 | 2 | 1.5 | 2.0 | +310 |
| 70 to 74 | 199 | 3.6 | 5.2 | 0 | 0.5 | 1.5 | +198 |
| 75 to 79 | 110 | 2.0 | 3.1 | 0 | 0.5 | 0.9 | +109 |
| 80 to 84 | 53 | 1.0 | 1.8 | 0 | 0.5 | 0.4 | +52 |
| 85 and over | 46 | 0.8 | 1.8 | 0 | 0.5 | 0.2 | +45 |
| Total population | 5,540 | 100.0 | 100.0 | 180 | 100.0 | 100.0 | +5,359 |
Dominant groups
Analysis of the five year age groups of Iluka in 2021 compared to the City of Joondalup shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).
Overall, 16.9% of the population was aged between 0 and 15, and 13.0% were aged 65 years and over, compared with 19.1% and 17.8% respectively for the City of Joondalup.
The major differences between the age structure of Iluka and the City of Joondalup were:
- A larger percentage of persons aged 55 to 59 (10.6% compared to 6.8%)
- A larger percentage of persons aged 50 to 54 (10.8% compared to 7.1%)
- A smaller percentage of persons aged 35 to 39 (3.7% compared to 6.6%)
- A smaller percentage of persons aged 30 to 34 (2.7% compared to 5.5%)
Emerging groups
From 1991 to 2021, Iluka's population increased by 5,360 people (2977.8%). This represents an average annual population change of 12.1% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 50 to 54 (+593 persons)
- 55 to 59 (+583 persons)
- 15 to 19 (+506 persons)
- 45 to 49 (+471 persons)
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