Powered by .id (informed decisions) for Australia
.id community is an evidence base for over 250 local government areas in Australia and New Zealand, helping you make informed decisions.
LEARN MORE ABOUT .idIn 2021, the largest age group in South Australia was 35 to 39 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 11,145 people.
The Age Structure of South Australia provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of South Australia'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 South Australia'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 | |||||||
|---|---|---|---|---|---|---|---|
| South Australia - Total females (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Victoria % | Number | % | Victoria % | 2016 to 2021 |
| 0 to 4 | 45,872 | 5.1 | 5.5 | 47,163 | 5.5 | 6.0 | -1,291 |
| 5 to 9 | 50,452 | 5.6 | 5.9 | 49,040 | 5.8 | 5.9 | +1,412 |
| 10 to 14 | 51,237 | 5.7 | 5.8 | 46,384 | 5.5 | 5.5 | +4,853 |
| 15 to 19 | 48,041 | 5.3 | 5.4 | 49,169 | 5.8 | 5.8 | -1,128 |
| 20 to 24 | 53,018 | 5.9 | 6.1 | 52,766 | 6.2 | 6.8 | +252 |
| 25 to 29 | 57,839 | 6.4 | 7.1 | 53,854 | 6.3 | 7.4 | +3,985 |
| 30 to 34 | 59,780 | 6.6 | 7.8 | 55,981 | 6.6 | 7.6 | +3,799 |
| 35 to 39 | 60,441 | 6.7 | 7.6 | 51,696 | 6.1 | 6.8 | +8,745 |
| 40 to 44 | 54,335 | 6.0 | 6.6 | 53,580 | 6.3 | 6.8 | +755 |
| 45 to 49 | 55,457 | 6.1 | 6.5 | 57,433 | 6.8 | 6.9 | -1,976 |
| 50 to 54 | 58,152 | 6.4 | 6.4 | 57,339 | 6.7 | 6.4 | +813 |
| 55 to 59 | 58,255 | 6.5 | 6.0 | 57,228 | 6.7 | 6.1 | +1,027 |
| 60 to 64 | 58,125 | 6.4 | 5.7 | 52,525 | 6.2 | 5.5 | +5,600 |
| 65 to 69 | 53,041 | 5.9 | 5.1 | 49,640 | 5.8 | 5.0 | +3,401 |
| 70 to 74 | 49,041 | 5.4 | 4.5 | 37,896 | 4.5 | 3.8 | +11,145 |
| 75 to 79 | 35,453 | 3.9 | 3.2 | 28,879 | 3.4 | 2.9 | +6,574 |
| 80 to 84 | 25,270 | 2.8 | 2.3 | 21,938 | 2.6 | 2.2 | +3,332 |
| 85 and over | 29,101 | 3.2 | 2.6 | 28,143 | 3.3 | 2.7 | +958 |
| Total population | 902,910 | 100.0 | 100.0 | 850,654 | 100.0 | 100.0 | +52,256 |
Dominant groups
Analysis of the female five year age groups of South Australia in 2021 compared to Victoria shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 16.3% of the female population was aged between 0 and 15, and 21.3% were aged 65 years and over, compared with 17.2% and 17.8% respectively for Victoria.
The major differences between the female age structure of South Australia and Victoria were:
- A larger percentage of females aged 70 to 74 (5.4% compared to 4.5%)
- A larger percentage of females aged 65 to 69 (5.9% compared to 5.1%)
- A smaller percentage of females aged 30 to 34 (6.6% compared to 7.8%)
- A smaller percentage of females aged 35 to 39 (6.7% compared to 7.6%)
Emerging groups
From 2016 to 2021, South Australia's female population increased by 52,256 people (6.1%). This represents an average annual population change of 1.2% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
- 70 to 74 (+11,145 females)
- 35 to 39 (+8,745 females)
- 75 to 79 (+6,574 females)
- 60 to 64 (+5,600 females)
DISCLAIMER: While all due care has been taken to ensure that the content of this website is accurate and current, there may be errors or omissions in it and no legal responsibility is accepted for the information and opinions in this website.
Please view our Privacy Policy, Terms of use and Legal notices.
ABS Data and the copyright in the ABS Data remains the property of the Australian Bureau of Statistics. The copyright in the way .id has modified, transformed or reconfigured the ABS Data as published on this website remains the property of .id. ABS Data can be accessed from the Australian Bureau of Statistics at www.abs.gov.au. ABS data can be used under license - terms published on ABS website. intermediary.management@abs.gov.au if you have any queries or wish to distribute any ABS data.