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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of Cockburn was 35 to 39 year olds. The group that changed the most since 1991 was 35 to 39 year olds, increasing by 5,525 people.
The Age Structure of the City of Cockburn provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Cockburn '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 the City of Cockburn '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 | |||||||
|---|---|---|---|---|---|---|---|
| City of Cockburn - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Shire of Mitchell % | Number | % | Shire of Mitchell % | 1991 to 2021 |
| 0 to 4 | 7,841 | 6.8 | 7.0 | 4,604 | 9.1 | 10.0 | +3,236 |
| 5 to 9 | 7,733 | 6.7 | 7.1 | 4,342 | 8.6 | 9.4 | +3,391 |
| 10 to 14 | 7,328 | 6.4 | 6.7 | 4,117 | 8.2 | 8.5 | +3,211 |
| 15 to 19 | 6,498 | 5.6 | 6.2 | 4,116 | 8.2 | 8.4 | +2,382 |
| 20 to 24 | 7,339 | 6.4 | 6.0 | 4,087 | 8.1 | 7.8 | +3,251 |
| 25 to 29 | 7,936 | 6.9 | 6.6 | 4,492 | 8.9 | 8.6 | +3,443 |
| 30 to 34 | 9,325 | 8.1 | 7.6 | 4,573 | 9.1 | 9.5 | +4,751 |
| 35 to 39 | 9,514 | 8.2 | 7.2 | 3,988 | 7.9 | 8.7 | +5,525 |
| 40 to 44 | 8,384 | 7.3 | 6.1 | 3,654 | 7.3 | 7.4 | +4,729 |
| 45 to 49 | 7,889 | 6.8 | 6.3 | 2,774 | 5.5 | 4.8 | +5,114 |
| 50 to 54 | 7,383 | 6.4 | 6.6 | 2,416 | 4.8 | 3.6 | +4,966 |
| 55 to 59 | 6,629 | 5.7 | 6.2 | 2,096 | 4.2 | 3.0 | +4,533 |
| 60 to 64 | 5,852 | 5.1 | 5.7 | 1,726 | 3.4 | 3.1 | +4,126 |
| 65 to 69 | 5,005 | 4.3 | 4.8 | 1,283 | 2.6 | 2.5 | +3,722 |
| 70 to 74 | 4,209 | 3.6 | 4.1 | 864 | 1.7 | 1.9 | +3,345 |
| 75 to 79 | 2,722 | 2.4 | 2.8 | 626 | 1.2 | 1.3 | +2,096 |
| 80 to 84 | 1,968 | 1.7 | 1.6 | 323 | 0.6 | 0.8 | +1,645 |
| 85 and over | 1,796 | 1.6 | 1.5 | 237 | 0.5 | 0.7 | +1,558 |
| Total population | 115,351 | 100.0 | 100.0 | 50,326 | 100.0 | 100.0 | +65,025 |
Dominant groups
Analysis of the five year age groups of the City of Cockburn in 2021 compared to the Shire of Mitchell 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, 19.9% of the population was aged between 0 and 15, and 13.6% were aged 65 years and over, compared with 20.9% and 14.7% respectively for the Shire of Mitchell .
The major differences between the age structure of the City of Cockburn and the Shire of Mitchell were:
- A larger percentage of persons aged 40 to 44 (7.3% compared to 6.1%)
- A larger percentage of persons aged 35 to 39 (8.2% compared to 7.2%)
- A smaller percentage of persons aged 60 to 64 (5.1% compared to 5.7%)
- A smaller percentage of persons aged 15 to 19 (5.6% compared to 6.2%)
Emerging groups
From 1991 to 2021, City of Cockburn 's population increased by 65,025 people (129.2%). This represents an average annual population change of 2.8% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 35 to 39 (+5,525 persons)
- 45 to 49 (+5,114 persons)
- 50 to 54 (+4,966 persons)
- 30 to 34 (+4,751 persons)
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