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LEARN MORE ABOUT .idIn 2021, the largest age group in Greater Perth was 35 to 39 year olds. The group that changed the most since 2001 was 60 to 64 year olds, increasing by 58,250 people.
The Age Structure of Greater 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 Greater 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 Greater 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 | |||||||
|---|---|---|---|---|---|---|---|
| Greater Perth - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Australia % | Number | % | Australia % | 2001 to 2021 |
| 0 to 4 | 129,598 | 6.1 | 5.8 | 88,084 | 6.4 | 6.6 | +41,514 |
| 5 to 9 | 136,414 | 6.4 | 6.2 | 95,987 | 6.9 | 7.1 | +40,427 |
| 10 to 14 | 135,222 | 6.4 | 6.2 | 101,277 | 7.3 | 7.1 | +33,945 |
| 15 to 19 | 123,315 | 5.8 | 5.7 | 106,900 | 7.7 | 7.1 | +16,415 |
| 20 to 24 | 132,631 | 6.3 | 6.2 | 98,420 | 7.1 | 6.6 | +34,211 |
| 25 to 29 | 143,850 | 6.8 | 7.0 | 96,579 | 7.0 | 7.0 | +47,271 |
| 30 to 34 | 160,051 | 7.6 | 7.3 | 102,780 | 7.4 | 7.5 | +57,271 |
| 35 to 39 | 163,435 | 7.7 | 7.2 | 105,421 | 7.6 | 7.6 | +58,014 |
| 40 to 44 | 143,484 | 6.8 | 6.5 | 107,530 | 7.8 | 7.7 | +35,954 |
| 45 to 49 | 138,515 | 6.5 | 6.4 | 102,040 | 7.4 | 7.0 | +36,475 |
| 50 to 54 | 136,051 | 6.4 | 6.3 | 95,400 | 6.9 | 6.7 | +40,651 |
| 55 to 59 | 125,717 | 5.9 | 6.1 | 69,755 | 5.0 | 5.2 | +55,962 |
| 60 to 64 | 114,471 | 5.4 | 5.8 | 56,221 | 4.1 | 4.2 | +58,250 |
| 65 to 69 | 101,124 | 4.8 | 5.1 | 45,944 | 3.3 | 3.5 | +55,180 |
| 70 to 74 | 88,828 | 4.2 | 4.6 | 41,669 | 3.0 | 3.3 | +47,159 |
| 75 to 79 | 60,857 | 2.9 | 3.2 | 33,410 | 2.4 | 2.7 | +27,447 |
| 80 to 84 | 42,242 | 2.0 | 2.2 | 21,181 | 1.5 | 1.7 | +21,061 |
| 85 and over | 40,831 | 1.9 | 2.1 | 18,491 | 1.3 | 1.4 | +22,340 |
| Total population | 2,116,636 | 100.0 | 100.0 | 1,387,089 | 100.0 | 100.0 | +729,547 |
Dominant groups
Analysis of the five year age groups of Greater Perth in 2021 compared to Australia 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, 19.0% of the population was aged between 0 and 15, and 15.8% were aged 65 years and over, compared with 18.2% and 17.2% respectively for Australia.
There were no major differences between Greater Perth and Australia in 2021.
Emerging groups
From 2001 to 2021, Greater Perth's population increased by 729,547 people (52.6%). This represents an average annual population change of 2.14% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 60 to 64 (+58,250 persons)
- 35 to 39 (+58,014 persons)
- 30 to 34 (+57,271 persons)
- 55 to 59 (+55,962 persons)
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