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LEARN MORE ABOUT .idIn 2021, the largest age group in Ku-ring-gai Council area was 10 to 14 year olds. The group that changed the most since 2006 was 70 to 74 year olds, increasing by 2,202 people.
The Age Structure of Ku-ring-gai Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Ku-ring-gai Council area'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 Ku-ring-gai Council area'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 | |||||||
|---|---|---|---|---|---|---|---|
| Ku-ring-gai Council area - Total persons (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Liverpool City % | Number | % | Liverpool City % | 2006 to 2021 |
| 0 to 4 | 5,612 | 4.6 | 7.1 | 5,238 | 5.3 | 8.2 | +374 |
| 5 to 9 | 8,550 | 6.9 | 7.6 | 7,245 | 7.3 | 8.4 | +1,305 |
| 10 to 14 | 9,796 | 8.0 | 7.4 | 8,039 | 8.1 | 8.2 | +1,757 |
| 15 to 19 | 8,980 | 7.3 | 6.9 | 8,125 | 8.2 | 7.3 | +855 |
| 20 to 24 | 6,872 | 5.6 | 7.1 | 5,803 | 5.8 | 7.2 | +1,069 |
| 25 to 29 | 4,431 | 3.6 | 7.0 | 3,268 | 3.3 | 7.1 | +1,163 |
| 30 to 34 | 4,963 | 4.0 | 7.3 | 3,541 | 3.6 | 8.0 | +1,422 |
| 35 to 39 | 7,562 | 6.1 | 7.7 | 5,803 | 5.8 | 8.0 | +1,759 |
| 40 to 44 | 8,829 | 7.2 | 6.9 | 7,809 | 7.9 | 8.0 | +1,020 |
| 45 to 49 | 9,350 | 7.6 | 6.6 | 8,245 | 8.3 | 7.0 | +1,105 |
| 50 to 54 | 9,319 | 7.6 | 6.1 | 7,282 | 7.3 | 5.7 | +2,037 |
| 55 to 59 | 8,200 | 6.7 | 5.8 | 6,789 | 6.8 | 5.0 | +1,411 |
| 60 to 64 | 6,871 | 5.6 | 5.0 | 5,363 | 5.4 | 3.6 | +1,508 |
| 65 to 69 | 5,905 | 4.8 | 3.8 | 4,080 | 4.1 | 2.7 | +1,825 |
| 70 to 74 | 5,676 | 4.6 | 3.0 | 3,474 | 3.5 | 2.2 | +2,202 |
| 75 to 79 | 4,647 | 3.8 | 2.1 | 3,512 | 3.5 | 1.6 | +1,135 |
| 80 to 84 | 3,475 | 2.8 | 1.4 | 2,946 | 3.0 | 1.0 | +529 |
| 85 and over | 4,145 | 3.4 | 1.3 | 2,823 | 2.8 | 0.7 | +1,322 |
| Total population | 123,183 | 100.0 | 100.0 | 99,385 | 100.0 | 100.0 | +23,798 |
Dominant groups
Analysis of the five year age groups of Ku-ring-gai Council area in 2021 compared to Liverpool City 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, 19.4% of the population was aged between 0 and 15, and 19.4% were aged 65 years and over, compared with 22.1% and 11.6% respectively for Liverpool City.
The major differences between the age structure of Ku-ring-gai Council area and Liverpool City were:
- A larger percentage of persons aged 85 and over (3.4% compared to 1.3%)
- A smaller percentage of persons aged 25 to 29 (3.6% compared to 7.0%)
- A smaller percentage of persons aged 30 to 34 (4.0% compared to 7.3%)
- A smaller percentage of persons aged 0 to 4 (4.6% compared to 7.1%)
Emerging groups
From 2006 to 2021, Ku-ring-gai Council area's population increased by 23,798 people (23.9%). This represents an average annual population change of 1.44% 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 (+2,202 persons)
- 50 to 54 (+2,037 persons)
- 65 to 69 (+1,825 persons)
- 35 to 39 (+1,759 persons)
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