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LEARN MORE ABOUT .idIn 2021, the largest age group in Secret Harbour was 10 to 14 year olds. The group that changed the most since 2006 was 50 to 54 year olds, increasing by 759 people.
The Age Structure of Secret Harbour provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Secret Harbour'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 Secret Harbour'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 | |||||||
|---|---|---|---|---|---|---|---|
| Secret Harbour - Total persons (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Rockingham - Peron - Garden Island % | Number | % | Rockingham - Peron - Garden Island % | 2006 to 2021 |
| 0 to 4 | 784 | 6.6 | 3.9 | 547 | 10.1 | 4.5 | +237 |
| 5 to 9 | 1,038 | 8.8 | 4.0 | 612 | 11.3 | 4.5 | +426 |
| 10 to 14 | 1,287 | 10.9 | 4.4 | 603 | 11.1 | 5.2 | +684 |
| 15 to 19 | 1,105 | 9.3 | 4.6 | 394 | 7.3 | 5.9 | +711 |
| 20 to 24 | 700 | 5.9 | 7.6 | 182 | 3.4 | 7.7 | +518 |
| 25 to 29 | 566 | 4.8 | 6.8 | 337 | 6.2 | 5.8 | +229 |
| 30 to 34 | 635 | 5.4 | 6.1 | 487 | 9.0 | 5.8 | +148 |
| 35 to 39 | 868 | 7.3 | 5.6 | 606 | 11.2 | 5.8 | +262 |
| 40 to 44 | 986 | 8.3 | 5.3 | 572 | 10.6 | 6.2 | +414 |
| 45 to 49 | 1,004 | 8.5 | 5.7 | 343 | 6.3 | 6.5 | +661 |
| 50 to 54 | 985 | 8.3 | 6.8 | 226 | 4.2 | 6.7 | +759 |
| 55 to 59 | 731 | 6.2 | 7.2 | 165 | 3.0 | 6.8 | +566 |
| 60 to 64 | 397 | 3.3 | 6.7 | 133 | 2.5 | 6.1 | +264 |
| 65 to 69 | 277 | 2.3 | 6.6 | 98 | 1.8 | 5.7 | +179 |
| 70 to 74 | 230 | 1.9 | 6.0 | 47 | 0.9 | 5.1 | +183 |
| 75 to 79 | 149 | 1.3 | 5.0 | 34 | 0.6 | 5.4 | +115 |
| 80 to 84 | 68 | 0.6 | 3.8 | 13 | 0.2 | 3.7 | +55 |
| 85 and over | 51 | 0.4 | 3.8 | 16 | 0.3 | 2.6 | +35 |
| Total population | 11,861 | 100.0 | 100.0 | 5,415 | 100.0 | 100.0 | +6,446 |
Dominant groups
Analysis of the five year age groups of Secret Harbour in 2021 compared to Rockingham - Peron - Garden Island 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, 26.2% of the population was aged between 0 and 15, and 6.5% were aged 65 years and over, compared with 12.3% and 25.2% respectively for Rockingham - Peron - Garden Island.
The major differences between the age structure of Secret Harbour and Rockingham - Peron - Garden Island were:
- A larger percentage of persons aged 10 to 14 (10.9% compared to 4.4%)
- A larger percentage of persons aged 5 to 9 (8.8% compared to 4.0%)
- A larger percentage of persons aged 15 to 19 (9.3% compared to 4.6%)
- A smaller percentage of persons aged 65 to 69 (2.3% compared to 6.6%)
Emerging groups
From 2006 to 2021, Secret Harbour's population increased by 6,446 people (119.0%). This represents an average annual population change of 5.37% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 50 to 54 (+759 persons)
- 15 to 19 (+711 persons)
- 10 to 14 (+684 persons)
- 45 to 49 (+661 persons)
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