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LEARN MORE ABOUT .idIn 2021, the largest age group in Australian Capital Territory was 25 to 29 year olds. The group that changed the most since 2006 was 25 to 29 year olds, increasing by 14,066 people.
The Age Structure of Australian Capital Territory provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Australian Capital Territory'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 Australian Capital Territory'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 | |||||||
|---|---|---|---|---|---|---|---|
| Australian Capital Territory - Total persons (Usual residence) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Australia % | Number | % | Australia % | 2006 to 2021 |
| 0 to 4 | 26,660 | 5.9 | 5.8 | 20,076 | 6.2 | 6.3 | +6,584 |
| 5 to 9 | 29,156 | 6.4 | 6.2 | 20,383 | 6.3 | 6.6 | +8,773 |
| 10 to 14 | 27,079 | 6.0 | 6.2 | 21,359 | 6.6 | 6.9 | +5,720 |
| 15 to 19 | 26,286 | 5.8 | 5.7 | 23,525 | 7.3 | 6.8 | +2,761 |
| 20 to 24 | 34,174 | 7.5 | 6.2 | 27,445 | 8.5 | 6.8 | +6,729 |
| 25 to 29 | 39,217 | 8.6 | 7.0 | 25,151 | 7.8 | 6.4 | +14,066 |
| 30 to 34 | 38,419 | 8.5 | 7.3 | 25,000 | 7.7 | 7.0 | +13,419 |
| 35 to 39 | 37,197 | 8.2 | 7.2 | 24,700 | 7.6 | 7.4 | +12,497 |
| 40 to 44 | 32,085 | 7.1 | 6.5 | 24,108 | 7.5 | 7.4 | +7,977 |
| 45 to 49 | 29,240 | 6.4 | 6.4 | 23,942 | 7.4 | 7.3 | +5,298 |
| 50 to 54 | 26,885 | 5.9 | 6.3 | 21,996 | 6.8 | 6.6 | +4,889 |
| 55 to 59 | 23,892 | 5.3 | 6.1 | 20,178 | 6.2 | 6.2 | +3,714 |
| 60 to 64 | 21,438 | 4.7 | 5.8 | 13,930 | 4.3 | 4.8 | +7,508 |
| 65 to 69 | 18,496 | 4.1 | 5.1 | 9,789 | 3.0 | 3.8 | +8,707 |
| 70 to 74 | 17,150 | 3.8 | 4.6 | 7,445 | 2.3 | 3.1 | +9,705 |
| 75 to 79 | 11,749 | 2.6 | 3.2 | 6,084 | 1.9 | 2.7 | +5,665 |
| 80 to 84 | 7,596 | 1.7 | 2.2 | 4,769 | 1.5 | 2.0 | +2,827 |
| 85 and over | 7,180 | 1.6 | 2.1 | 3,445 | 1.1 | 1.6 | +3,735 |
| Total population | 453,899 | 100.0 | 100.0 | 323,325 | 100.0 | 100.0 | +130,574 |
Dominant groups
Analysis of the five year age groups of Australian Capital Territory in 2021 compared to Australia 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, 18.3% of the population was aged between 0 and 15, and 13.7% were aged 65 years and over, compared with 18.2% and 17.2% respectively for Australia.
The major differences between the age structure of Australian Capital Territory and Australia were:
- A larger percentage of persons aged 25 to 29 (8.6% compared to 7.0%)
- A larger percentage of persons aged 20 to 24 (7.5% compared to 6.2%)
- A larger percentage of persons aged 30 to 34 (8.5% compared to 7.3%)
- A smaller percentage of persons aged 60 to 64 (4.7% compared to 5.8%)
Emerging groups
From 2006 to 2021, Australian Capital Territory's population increased by 130,574 people (40.4%). This represents an average annual population change of 2.29% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 25 to 29 (+14,066 persons)
- 30 to 34 (+13,419 persons)
- 35 to 39 (+12,497 persons)
- 70 to 74 (+9,705 persons)
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