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LEARN MORE ABOUT .idIn 2021, the largest age group in Growth LGAs in WA was 35 to 39 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 14,539 people.
The Age Structure of Growth LGAs in WA provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Growth LGAs in WA'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 Growth LGAs in WA'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 | |||||||
|---|---|---|---|---|---|---|---|
| Growth LGAs in WA - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | National Growth Areas Alliance (NGAA) % | Number | % | National Growth Areas Alliance (NGAA) % | 2016 to 2021 |
| 0 to 4 | 70,416 | 7.0 | 7.2 | 68,006 | 7.6 | 7.7 | +2,410 |
| 5 to 9 | 73,661 | 7.3 | 7.6 | 66,122 | 7.4 | 7.6 | +7,539 |
| 10 to 14 | 70,124 | 7.0 | 7.2 | 58,693 | 6.6 | 6.8 | +11,431 |
| 15 to 19 | 61,522 | 6.1 | 6.3 | 58,220 | 6.5 | 6.7 | +3,302 |
| 20 to 24 | 61,699 | 6.1 | 6.3 | 59,793 | 6.7 | 6.7 | +1,906 |
| 25 to 29 | 66,310 | 6.6 | 6.8 | 66,783 | 7.5 | 7.0 | -473 |
| 30 to 34 | 76,013 | 7.6 | 7.7 | 72,441 | 8.1 | 7.7 | +3,572 |
| 35 to 39 | 79,680 | 7.9 | 8.1 | 65,141 | 7.3 | 7.3 | +14,539 |
| 40 to 44 | 68,889 | 6.9 | 7.0 | 63,793 | 7.1 | 7.1 | +5,096 |
| 45 to 49 | 65,963 | 6.6 | 6.5 | 62,269 | 7.0 | 6.8 | +3,694 |
| 50 to 54 | 64,225 | 6.4 | 6.0 | 56,488 | 6.3 | 6.3 | +7,737 |
| 55 to 59 | 58,093 | 5.8 | 5.5 | 48,435 | 5.4 | 5.6 | +9,658 |
| 60 to 64 | 50,654 | 5.0 | 4.9 | 41,341 | 4.6 | 4.8 | +9,313 |
| 65 to 69 | 43,156 | 4.3 | 4.2 | 36,599 | 4.1 | 4.2 | +6,557 |
| 70 to 74 | 37,294 | 3.7 | 3.6 | 26,370 | 2.9 | 3.0 | +10,924 |
| 75 to 79 | 25,308 | 2.5 | 2.4 | 19,724 | 2.2 | 2.0 | +5,584 |
| 80 to 84 | 17,201 | 1.7 | 1.5 | 12,902 | 1.4 | 1.3 | +4,299 |
| 85 and over | 14,531 | 1.4 | 1.3 | 11,380 | 1.3 | 1.2 | +3,151 |
| Total population | 1,004,739 | 100.0 | 100.0 | 894,500 | 100.0 | 100.0 | +110,239 |
Dominant groups
Analysis of the five year age groups of Growth LGAs in WA in 2021 compared to National Growth Areas Alliance (NGAA) shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 21.3% of the population was aged between 0 and 15, and 13.7% were aged 65 years and over, compared with 22.0% and 12.9% respectively for National Growth Areas Alliance (NGAA).
There were no major differences between Growth LGAs in WA and National Growth Areas Alliance (NGAA) in 2021.
Emerging groups
From 2016 to 2021, Growth LGAs in WA's population increased by 110,239 people (12.3%). This represents an average annual population change of 2.35% 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 (+14,539 persons)
- 10 to 14 (+11,431 persons)
- 70 to 74 (+10,924 persons)
- 55 to 59 (+9,658 persons)
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