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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 2016 was 35 to 39 year olds, increasing by 13,861 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 females (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Greater Adelaide % | Number | % | Greater Adelaide % | 2016 to 2021 |
| 0 to 4 | 62,896 | 5.9 | 5.1 | 61,672 | 6.3 | 5.6 | +1,224 |
| 5 to 9 | 66,521 | 6.2 | 5.6 | 61,685 | 6.3 | 5.7 | +4,836 |
| 10 to 14 | 65,588 | 6.1 | 5.6 | 56,820 | 5.8 | 5.3 | +8,768 |
| 15 to 19 | 60,176 | 5.6 | 5.4 | 58,729 | 6.0 | 5.9 | +1,447 |
| 20 to 24 | 65,344 | 6.1 | 6.3 | 65,083 | 6.6 | 6.7 | +261 |
| 25 to 29 | 72,285 | 6.7 | 6.8 | 75,449 | 7.7 | 6.7 | -3,164 |
| 30 to 34 | 82,350 | 7.7 | 7.0 | 78,040 | 8.0 | 6.9 | +4,310 |
| 35 to 39 | 82,738 | 7.7 | 7.0 | 68,877 | 7.0 | 6.3 | +13,861 |
| 40 to 44 | 72,329 | 6.8 | 6.2 | 68,258 | 7.0 | 6.4 | +4,071 |
| 45 to 49 | 70,055 | 6.5 | 6.2 | 67,715 | 6.9 | 6.8 | +2,340 |
| 50 to 54 | 68,693 | 6.4 | 6.4 | 62,922 | 6.4 | 6.6 | +5,771 |
| 55 to 59 | 63,977 | 6.0 | 6.2 | 58,065 | 5.9 | 6.5 | +5,912 |
| 60 to 64 | 59,167 | 5.5 | 6.1 | 51,757 | 5.3 | 5.9 | +7,410 |
| 65 to 69 | 53,135 | 5.0 | 5.5 | 45,643 | 4.7 | 5.5 | +7,492 |
| 70 to 74 | 46,169 | 4.3 | 5.1 | 32,742 | 3.3 | 4.2 | +13,427 |
| 75 to 79 | 31,734 | 3.0 | 3.7 | 25,731 | 2.6 | 3.2 | +6,003 |
| 80 to 84 | 23,261 | 2.2 | 2.7 | 19,170 | 2.0 | 2.5 | +4,091 |
| 85 and over | 25,048 | 2.3 | 3.2 | 21,972 | 2.2 | 3.3 | +3,076 |
| Total population | 1,071,466 | 100.0 | 100.0 | 980,330 | 100.0 | 100.0 | +91,136 |
Dominant groups
Analysis of the female five year age groups of Greater Perth in 2021 compared to Greater Adelaide shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 18.2% of the female population was aged between 0 and 15, and 16.7% were aged 65 years and over, compared with 16.3% and 20.1% respectively for Greater Adelaide.
The major differences between the female age structure of Greater Perth and Greater Adelaide were:
- A larger percentage of females aged 0 to 4 (5.9% compared to 5.1%)
- A larger percentage of females aged 30 to 34 (7.7% compared to 7.0%)
- A smaller percentage of females aged 85 and over (2.3% compared to 3.2%)
- A smaller percentage of females aged 70 to 74 (4.3% compared to 5.1%)
Emerging groups
From 2016 to 2021, Greater Perth's female population increased by 91,136 people (9.3%). This represents an average annual population change of 1.79% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
- 35 to 39 (+13,861 females)
- 70 to 74 (+13,427 females)
- 10 to 14 (+8,768 females)
- 65 to 69 (+7,492 females)
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