Powered by .id (informed decisions) for Perth South West Metropolitan Alliance
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LEARN MORE ABOUT .idIn 2021, the largest age group in Perth South West was 35 to 39 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 5,038 people.
The Age Structure of Perth South West provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Perth South West'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 Perth South West'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 | |||||||
|---|---|---|---|---|---|---|---|
| Perth South West - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Greater Perth % | Number | % | Greater Perth % | 2016 to 2021 |
| 0 to 4 | 27,856 | 6.3 | 6.1 | 27,144 | 6.7 | 6.5 | +712 |
| 5 to 9 | 29,334 | 6.6 | 6.4 | 27,677 | 6.9 | 6.5 | +1,657 |
| 10 to 14 | 29,483 | 6.7 | 6.4 | 24,905 | 6.2 | 6.0 | +4,578 |
| 15 to 19 | 26,414 | 6.0 | 5.8 | 25,165 | 6.2 | 6.2 | +1,249 |
| 20 to 24 | 26,943 | 6.1 | 6.3 | 26,732 | 6.6 | 6.9 | +211 |
| 25 to 29 | 28,403 | 6.4 | 6.8 | 28,719 | 7.1 | 7.7 | -316 |
| 30 to 34 | 31,883 | 7.2 | 7.6 | 30,486 | 7.6 | 8.0 | +1,397 |
| 35 to 39 | 33,270 | 7.5 | 7.7 | 28,289 | 7.0 | 7.1 | +4,981 |
| 40 to 44 | 30,223 | 6.8 | 6.8 | 28,560 | 7.1 | 6.9 | +1,663 |
| 45 to 49 | 29,533 | 6.7 | 6.5 | 28,589 | 7.1 | 6.9 | +944 |
| 50 to 54 | 29,142 | 6.6 | 6.4 | 26,495 | 6.6 | 6.4 | +2,647 |
| 55 to 59 | 26,970 | 6.1 | 5.9 | 23,667 | 5.9 | 5.8 | +3,303 |
| 60 to 64 | 24,167 | 5.5 | 5.4 | 20,584 | 5.1 | 5.1 | +3,583 |
| 65 to 69 | 21,169 | 4.8 | 4.8 | 17,817 | 4.4 | 4.6 | +3,352 |
| 70 to 74 | 18,023 | 4.1 | 4.2 | 12,985 | 3.2 | 3.3 | +5,038 |
| 75 to 79 | 12,601 | 2.8 | 2.9 | 9,955 | 2.5 | 2.5 | +2,646 |
| 80 to 84 | 8,742 | 2.0 | 2.0 | 7,456 | 1.9 | 1.7 | +1,286 |
| 85 and over | 8,749 | 2.0 | 1.9 | 7,588 | 1.9 | 1.8 | +1,161 |
| Total population | 442,905 | 100.0 | 100.0 | 402,813 | 100.0 | 100.0 | +40,092 |
Dominant groups
Analysis of the five year age groups of Perth South West in 2021 compared to Greater Perth shows that there was a higher proportion of people in the younger age groups (under 15) and a similar proportion of people in the older age groups (65+).
Overall, 19.6% of the population was aged between 0 and 15, and 15.6% were aged 65 years and over, compared with 19.0% and 15.8% respectively for Greater Perth.
There were no major differences between Perth South West and Greater Perth in 2021.
Emerging groups
From 2016 to 2021, Perth South West's population increased by 40,092 people (10.0%). This represents an average annual population change of 1.92% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
- 70 to 74 (+5,038 persons)
- 35 to 39 (+4,981 persons)
- 10 to 14 (+4,578 persons)
- 60 to 64 (+3,583 persons)
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