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LEARN MORE ABOUT .idIn 2021, the largest age group in Chatswood (CBD) was 35 to 39 year olds. The group that changed the most since 2016 was 20 to 24 year olds, decreasing by 345 people.
The Age Structure of Chatswood (CBD) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Chatswood (CBD)'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 Chatswood (CBD)'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 | |||||||
|---|---|---|---|---|---|---|---|
| Chatswood (CBD) - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | North Sydney Council area % | Number | % | North Sydney Council area % | 2016 to 2021 |
| 0 to 4 | 584 | 5.1 | 5.0 | 659 | 6.4 | 5.7 | -75 |
| 5 to 9 | 700 | 6.1 | 4.2 | 540 | 5.2 | 4.0 | +159 |
| 10 to 14 | 588 | 5.1 | 3.5 | 372 | 3.6 | 3.0 | +216 |
| 15 to 19 | 502 | 4.4 | 3.1 | 557 | 5.4 | 2.7 | -56 |
| 20 to 24 | 745 | 6.5 | 4.9 | 1,090 | 10.6 | 5.1 | -345 |
| 25 to 29 | 1,175 | 10.2 | 9.6 | 1,225 | 11.9 | 11.1 | -51 |
| 30 to 34 | 1,286 | 11.2 | 11.6 | 1,340 | 13.0 | 13.0 | -54 |
| 35 to 39 | 1,322 | 11.5 | 10.0 | 1,019 | 9.9 | 10.3 | +303 |
| 40 to 44 | 1,074 | 9.3 | 7.9 | 790 | 7.6 | 7.9 | +284 |
| 45 to 49 | 831 | 7.2 | 6.6 | 566 | 5.5 | 6.6 | +265 |
| 50 to 54 | 515 | 4.5 | 6.1 | 432 | 4.2 | 5.6 | +82 |
| 55 to 59 | 413 | 3.6 | 5.5 | 373 | 3.6 | 5.5 | +40 |
| 60 to 64 | 410 | 3.6 | 5.3 | 318 | 3.1 | 5.1 | +91 |
| 65 to 69 | 354 | 3.1 | 4.7 | 323 | 3.1 | 5.0 | +31 |
| 70 to 74 | 344 | 3.0 | 4.6 | 191 | 1.9 | 3.7 | +152 |
| 75 to 79 | 229 | 2.0 | 3.4 | 171 | 1.7 | 2.5 | +57 |
| 80 to 84 | 164 | 1.4 | 2.1 | 167 | 1.6 | 1.5 | -3 |
| 85 and over | 258 | 2.2 | 1.8 | 189 | 1.8 | 1.7 | +68 |
| Total population | 11,494 | 100.0 | 100.0 | 10,330 | 100.0 | 100.0 | +1,164 |
Dominant groups
Analysis of the five year age groups of Chatswood (CBD) in 2021 compared to North Sydney Council area shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 16.3% of the population was aged between 0 and 15, and 11.7% were aged 65 years and over, compared with 12.7% and 16.7% respectively for North Sydney Council area.
The major differences between the age structure of Chatswood (CBD) and North Sydney Council area were:
- A larger percentage of persons aged 5 to 9 (6.1% compared to 4.2%)
- A smaller percentage of persons aged 55 to 59 (3.6% compared to 5.5%)
- A smaller percentage of persons aged 60 to 64 (3.6% compared to 5.3%)
- A smaller percentage of persons aged 50 to 54 (4.5% compared to 6.1%)
Emerging groups
From 2016 to 2021, Chatswood (CBD)'s population increased by 1,164 people (11.3%). This represents an average annual population change of 2.16% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
- 20 to 24 (-345 persons)
- 35 to 39 (+303 persons)
- 40 to 44 (+284 persons)
- 45 to 49 (+265 persons)
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