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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of West Torrens was 25 to 29 year olds. The group that changed the most since 1991 was 85 and over year olds, increasing by 1,553 people.
The Age Structure of the City of West Torrens 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 West Torrens'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 West Torrens'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 West Torrens - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | North Plympton - Netley % | Number | % | North Plympton - Netley % | 1991 to 2021 |
| 0 to 4 | 3,029 | 5.0 | 5.8 | 2,563 | 5.1 | 3.8 | +466 |
| 5 to 9 | 3,081 | 5.0 | 4.5 | 2,154 | 4.3 | 3.7 | +927 |
| 10 to 14 | 2,853 | 4.7 | 4.6 | 2,189 | 4.3 | 4.6 | +664 |
| 15 to 19 | 2,942 | 4.8 | 4.0 | 3,606 | 7.1 | 6.8 | -664 |
| 20 to 24 | 4,749 | 7.8 | 7.5 | 5,127 | 10.1 | 8.6 | -378 |
| 25 to 29 | 5,751 | 9.4 | 7.3 | 4,677 | 9.3 | 7.4 | +1,074 |
| 30 to 34 | 5,232 | 8.6 | 8.1 | 4,022 | 8.0 | 6.3 | +1,210 |
| 35 to 39 | 4,645 | 7.6 | 7.2 | 3,250 | 6.4 | 4.7 | +1,395 |
| 40 to 44 | 3,960 | 6.5 | 5.9 | 2,848 | 5.6 | 5.4 | +1,112 |
| 45 to 49 | 3,577 | 5.8 | 5.3 | 2,762 | 5.5 | 6.2 | +815 |
| 50 to 54 | 3,685 | 6.0 | 5.1 | 2,595 | 5.1 | 6.6 | +1,090 |
| 55 to 59 | 3,507 | 5.7 | 5.0 | 2,575 | 5.1 | 5.1 | +932 |
| 60 to 64 | 3,197 | 5.2 | 4.3 | 2,789 | 5.5 | 6.2 | +408 |
| 65 to 69 | 2,649 | 4.3 | 3.9 | 3,092 | 6.1 | 6.5 | -443 |
| 70 to 74 | 2,416 | 3.9 | 4.6 | 2,377 | 4.7 | 5.3 | +39 |
| 75 to 79 | 1,900 | 3.1 | 4.3 | 1,963 | 3.9 | 5.1 | -63 |
| 80 to 84 | 1,692 | 2.8 | 4.6 | 1,200 | 2.4 | 4.0 | +492 |
| 85 and over | 2,307 | 3.8 | 8.3 | 754 | 1.5 | 3.6 | +1,553 |
| Total population | 61,172 | 100.0 | 100.0 | 50,543 | 100.0 | 100.0 | +10,629 |
Dominant groups
Analysis of the five year age groups of the City of West Torrens in 2021 compared to North Plympton - Netley shows that there was a similar proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 14.7% of the population was aged between 0 and 15, and 17.9% were aged 65 years and over, compared with 14.8% and 25.6% respectively for North Plympton - Netley.
The major differences between the age structure of the City of West Torrens and North Plympton - Netley were:
- A larger percentage of persons aged 25 to 29 (9.4% compared to 7.3%)
- A smaller percentage of persons aged 85 and over (3.8% compared to 8.3%)
- A smaller percentage of persons aged 80 to 84 (2.8% compared to 4.6%)
- A smaller percentage of persons aged 75 to 79 (3.1% compared to 4.3%)
Emerging groups
From 1991 to 2021, City of West Torrens's population increased by 10,629 people (21.0%). This represents an average annual population change of 0.64% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 85 and over (+1,553 persons)
- 35 to 39 (+1,395 persons)
- 30 to 34 (+1,210 persons)
- 40 to 44 (+1,112 persons)
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