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LEARN MORE ABOUT .idIn 2021, the largest age group in Darch was 15 to 19 year olds. The group that changed the most since 2006 was 15 to 19 year olds, increasing by 494 people.
The Age Structure of Darch provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Darch'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 Darch'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 | |||||||
|---|---|---|---|---|---|---|---|
| Darch - Total persons (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | City of Wanneroo % | Number | % | City of Wanneroo % | 2006 to 2021 |
| 0 to 4 | 394 | 5.4 | 7.2 | 375 | 11.8 | 8.2 | +19 |
| 5 to 9 | 570 | 7.9 | 7.8 | 322 | 10.2 | 8.6 | +248 |
| 10 to 14 | 668 | 9.2 | 7.6 | 223 | 7.0 | 8.6 | +445 |
| 15 to 19 | 704 | 9.7 | 6.8 | 210 | 6.6 | 7.3 | +494 |
| 20 to 24 | 515 | 7.1 | 6.4 | 162 | 5.1 | 6.4 | +353 |
| 25 to 29 | 322 | 4.4 | 6.4 | 315 | 9.9 | 6.6 | +7 |
| 30 to 34 | 376 | 5.2 | 7.3 | 353 | 11.1 | 7.8 | +23 |
| 35 to 39 | 540 | 7.5 | 7.8 | 350 | 11.0 | 8.6 | +190 |
| 40 to 44 | 608 | 8.4 | 6.9 | 282 | 8.9 | 8.0 | +326 |
| 45 to 49 | 645 | 8.9 | 6.9 | 191 | 6.0 | 6.7 | +454 |
| 50 to 54 | 583 | 8.1 | 6.6 | 129 | 4.1 | 5.5 | +454 |
| 55 to 59 | 402 | 5.6 | 5.6 | 107 | 3.4 | 5.1 | +295 |
| 60 to 64 | 270 | 3.7 | 4.6 | 41 | 1.3 | 3.7 | +229 |
| 65 to 69 | 195 | 2.7 | 3.8 | 52 | 1.6 | 3.0 | +143 |
| 70 to 74 | 185 | 2.6 | 3.3 | 29 | 0.9 | 2.2 | +156 |
| 75 to 79 | 123 | 1.7 | 2.2 | 12 | 0.4 | 1.7 | +111 |
| 80 to 84 | 88 | 1.2 | 1.5 | 14 | 0.4 | 1.1 | +74 |
| 85 and over | 52 | 0.7 | 1.3 | 3 | 0.1 | 0.8 | +49 |
| Total population | 7,240 | 100.0 | 100.0 | 3,170 | 100.0 | 100.0 | +4,070 |
Dominant groups
Analysis of the five year age groups of Darch in 2021 compared to the City of Wanneroo shows that there was a similar proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 22.5% of the population was aged between 0 and 15, and 8.9% were aged 65 years and over, compared with 22.6% and 12.0% respectively for the City of Wanneroo.
The major differences between the age structure of Darch and the City of Wanneroo were:
- A larger percentage of persons aged 15 to 19 (9.7% compared to 6.8%)
- A larger percentage of persons aged 45 to 49 (8.9% compared to 6.9%)
- A smaller percentage of persons aged 30 to 34 (5.2% compared to 7.3%)
- A smaller percentage of persons aged 25 to 29 (4.4% compared to 6.4%)
Emerging groups
From 2006 to 2021, Darch's population increased by 4,070 people (128.4%). This represents an average annual population change of 5.66% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 15 to 19 (+494 persons)
- 45 to 49 (+454 persons)
- 50 to 54 (+454 persons)
- 10 to 14 (+445 persons)
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