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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 2011 was 30 to 34 year olds, increasing by 5,584 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 females (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | Victoria % | Number | % | Victoria % | 2011 to 2021 |
| 0 to 4 | 12,875 | 5.6 | 5.6 | 11,347 | 6.3 | 6.2 | +1,528 |
| 5 to 9 | 14,088 | 6.1 | 5.9 | 10,258 | 5.7 | 5.9 | +3,830 |
| 10 to 14 | 13,044 | 5.7 | 5.8 | 10,791 | 6.0 | 5.9 | +2,253 |
| 15 to 19 | 13,041 | 5.7 | 5.4 | 11,752 | 6.5 | 6.2 | +1,289 |
| 20 to 24 | 17,284 | 7.5 | 6.1 | 15,032 | 8.4 | 6.8 | +2,252 |
| 25 to 29 | 19,504 | 8.5 | 7.2 | 15,200 | 8.4 | 7.2 | +4,304 |
| 30 to 34 | 19,471 | 8.5 | 7.8 | 13,887 | 7.7 | 6.9 | +5,584 |
| 35 to 39 | 18,896 | 8.2 | 7.6 | 13,653 | 7.6 | 7.2 | +5,243 |
| 40 to 44 | 16,029 | 7.0 | 6.6 | 13,167 | 7.3 | 7.4 | +2,862 |
| 45 to 49 | 14,764 | 6.4 | 6.5 | 12,660 | 7.0 | 7.0 | +2,104 |
| 50 to 54 | 13,464 | 5.9 | 6.4 | 12,040 | 6.7 | 6.7 | +1,424 |
| 55 to 59 | 12,148 | 5.3 | 6.0 | 10,507 | 5.8 | 5.9 | +1,641 |
| 60 to 64 | 11,043 | 4.8 | 5.6 | 9,231 | 5.1 | 5.4 | +1,812 |
| 65 to 69 | 9,669 | 4.2 | 5.0 | 6,292 | 3.5 | 4.1 | +3,377 |
| 70 to 74 | 8,990 | 3.9 | 4.4 | 4,565 | 2.5 | 3.3 | +4,425 |
| 75 to 79 | 6,212 | 2.7 | 3.2 | 3,429 | 1.9 | 2.7 | +2,783 |
| 80 to 84 | 4,239 | 1.9 | 2.3 | 2,874 | 1.6 | 2.4 | +1,365 |
| 85 and over | 4,337 | 1.9 | 2.7 | 3,225 | 1.8 | 2.5 | +1,112 |
| Total population | 229,098 | 100.0 | 100.0 | 179,910 | 100.0 | 100.0 | +49,188 |
Dominant groups
Analysis of the female five year age groups of Australian Capital Territory in 2021 compared to Victoria shows that there was a similar proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 17.5% of the female population was aged between 0 and 15, and 14.6% were aged 65 years and over, compared with 17.3% and 17.6% respectively for Victoria.
The major differences between the female age structure of Australian Capital Territory and Victoria were:
- A larger percentage of females aged 20 to 24 (7.5% compared to 6.1%)
- A larger percentage of females aged 25 to 29 (8.5% compared to 7.2%)
- A smaller percentage of females aged 60 to 64 (4.8% compared to 5.6%)
- A smaller percentage of females aged 85 and over (1.9% compared to 2.7%)
Emerging groups
From 2011 to 2021, Australian Capital Territory's female population increased by 49,188 people (27.3%). This represents an average annual population change of 2.45% per year over the period.
The largest changes in female age structure in this area between 2011 and 2021 were in the age groups:
- 30 to 34 (+5,584 females)
- 35 to 39 (+5,243 females)
- 70 to 74 (+4,425 females)
- 25 to 29 (+4,304 females)
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