Powered by .id (informed decisions) for City of Perth
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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of Perth was 25 to 29 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 862 people.
The Age Structure of the City of Perth 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 Perth'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 Perth'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 Perth - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Greater Perth % | Number | % | Greater Perth % | 2016 to 2021 |
| 0 to 4 | 933 | 3.3 | 6.1 | 799 | 3.2 | 6.5 | +134 |
| 5 to 9 | 626 | 2.2 | 6.4 | 353 | 1.4 | 6.5 | +273 |
| 10 to 14 | 438 | 1.5 | 6.4 | 268 | 1.1 | 6.0 | +170 |
| 15 to 19 | 1,241 | 4.4 | 5.8 | 1,214 | 4.9 | 6.2 | +27 |
| 20 to 24 | 3,628 | 12.7 | 6.3 | 3,646 | 14.6 | 6.9 | -18 |
| 25 to 29 | 4,374 | 15.4 | 6.8 | 4,629 | 18.5 | 7.7 | -255 |
| 30 to 34 | 4,168 | 14.6 | 7.6 | 3,989 | 16.0 | 8.0 | +179 |
| 35 to 39 | 3,010 | 10.6 | 7.7 | 2,148 | 8.6 | 7.1 | +862 |
| 40 to 44 | 1,807 | 6.3 | 6.8 | 1,289 | 5.2 | 6.9 | +518 |
| 45 to 49 | 1,331 | 4.7 | 6.5 | 1,123 | 4.5 | 6.9 | +208 |
| 50 to 54 | 1,351 | 4.7 | 6.4 | 1,086 | 4.3 | 6.4 | +265 |
| 55 to 59 | 1,313 | 4.6 | 5.9 | 1,005 | 4.0 | 5.8 | +308 |
| 60 to 64 | 1,170 | 4.1 | 5.4 | 1,055 | 4.2 | 5.1 | +115 |
| 65 to 69 | 1,037 | 3.6 | 4.8 | 891 | 3.6 | 4.6 | +146 |
| 70 to 74 | 863 | 3.0 | 4.2 | 642 | 2.6 | 3.3 | +221 |
| 75 to 79 | 554 | 1.9 | 2.9 | 434 | 1.7 | 2.5 | +120 |
| 80 to 84 | 349 | 1.2 | 2.0 | 231 | 0.9 | 1.7 | +118 |
| 85 and over | 268 | 0.9 | 1.9 | 180 | 0.7 | 1.8 | +88 |
| Total population | 28,461 | 100.0 | 100.0 | 24,982 | 100.0 | 100.0 | +3,479 |
Dominant groups
Analysis of the five year age groups of the City of Perth in 2021 compared to Greater Perth 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, 7.0% of the population was aged between 0 and 15, and 10.8% were aged 65 years and over, compared with 19.0% and 15.8% respectively for Greater Perth.
The major differences between the age structure of the City of Perth and Greater Perth were:
- A larger percentage of persons aged 25 to 29 (15.4% compared to 6.8%)
- A larger percentage of persons aged 30 to 34 (14.6% compared to 7.6%)
- A larger percentage of persons aged 20 to 24 (12.7% compared to 6.3%)
- A smaller percentage of persons aged 10 to 14 (1.5% compared to 6.4%)
Emerging groups
From 2016 to 2021, City of Perth's population increased by 3,479 people (13.9%). This represents an average annual population change of 2.64% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
- 35 to 39 (+862 persons)
- 40 to 44 (+518 persons)
- 55 to 59 (+308 persons)
- 5 to 9 (+273 persons)
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