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LEARN MORE ABOUT .idIn 2021, the largest age group in Regional SA was 60 to 64 year olds. The group that changed the most since 2006 was 70 to 74 year olds, increasing by 13,323 people.
The Age Structure of Regional SA provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Regional SA'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 Regional SA'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 | |||||||
|---|---|---|---|---|---|---|---|
| Regional SA - Total persons (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Victoria % | Number | % | Victoria % | 2006 to 2021 |
| 0 to 4 | 19,391 | 4.9 | 5.8 | 21,438 | 6.0 | 6.2 | -2,047 |
| 5 to 9 | 22,211 | 5.6 | 6.2 | 24,084 | 6.8 | 6.4 | -1,873 |
| 10 to 14 | 23,664 | 6.0 | 6.0 | 25,996 | 7.3 | 6.7 | -2,332 |
| 15 to 19 | 20,343 | 5.1 | 5.6 | 21,861 | 6.2 | 6.9 | -1,518 |
| 20 to 24 | 18,281 | 4.6 | 6.3 | 17,277 | 4.9 | 6.9 | +1,004 |
| 25 to 29 | 20,851 | 5.3 | 7.3 | 17,650 | 5.0 | 6.6 | +3,201 |
| 30 to 34 | 21,800 | 5.5 | 7.7 | 20,369 | 5.7 | 7.2 | +1,431 |
| 35 to 39 | 21,973 | 5.5 | 7.6 | 24,662 | 7.0 | 7.6 | -2,689 |
| 40 to 44 | 20,821 | 5.2 | 6.6 | 26,060 | 7.4 | 7.5 | -5,239 |
| 45 to 49 | 23,441 | 5.9 | 6.4 | 26,909 | 7.6 | 7.3 | -3,468 |
| 50 to 54 | 26,907 | 6.8 | 6.3 | 25,449 | 7.2 | 6.6 | +1,458 |
| 55 to 59 | 28,874 | 7.3 | 5.9 | 24,812 | 7.0 | 6.1 | +4,062 |
| 60 to 64 | 30,618 | 7.7 | 5.5 | 20,652 | 5.8 | 4.6 | +9,966 |
| 65 to 69 | 29,064 | 7.3 | 4.8 | 17,031 | 4.8 | 3.7 | +12,033 |
| 70 to 74 | 26,582 | 6.7 | 4.3 | 13,259 | 3.7 | 3.1 | +13,323 |
| 75 to 79 | 18,777 | 4.7 | 3.1 | 11,851 | 3.3 | 2.8 | +6,926 |
| 80 to 84 | 12,065 | 3.0 | 2.2 | 8,408 | 2.4 | 2.1 | +3,657 |
| 85 and over | 10,996 | 2.8 | 2.2 | 6,715 | 1.9 | 1.7 | +4,281 |
| Total population | 396,659 | 100.0 | 100.0 | 354,483 | 100.0 | 100.0 | +42,176 |
Dominant groups
Analysis of the five year age groups of Regional SA in 2021 compared to Victoria 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, 16.5% of the population was aged between 0 and 15, and 24.6% were aged 65 years and over, compared with 18.1% and 16.6% respectively for Victoria.
The major differences between the age structure of Regional SA and Victoria were:
- A larger percentage of persons aged 65 to 69 (7.3% compared to 4.8%)
- A larger percentage of persons aged 70 to 74 (6.7% compared to 4.3%)
- A larger percentage of persons aged 60 to 64 (7.7% compared to 5.5%)
- A smaller percentage of persons aged 30 to 34 (5.5% compared to 7.7%)
Emerging groups
From 2006 to 2021, Regional SA's population increased by 42,176 people (11.9%). This represents an average annual population change of 0.75% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 70 to 74 (+13,323 persons)
- 65 to 69 (+12,033 persons)
- 60 to 64 (+9,966 persons)
- 75 to 79 (+6,926 persons)
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