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LEARN MORE ABOUT .idIn 2021, the largest age group in Chatswood West - Lane Cove North was 35 to 39 year olds. The group that changed the most since 1991 was 85 and over year olds, increasing by 162 people.
The Age Structure of Chatswood West - Lane Cove North 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 West - Lane Cove North'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 West - Lane Cove North'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 West - Lane Cove North - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Willoughby City % | Number | % | Willoughby City % | 1991 to 2021 |
| 0 to 4 | 213 | 5.8 | 5.3 | 158 | 6.0 | 6.2 | +54 |
| 5 to 9 | 264 | 7.2 | 6.7 | 159 | 6.1 | 5.4 | +104 |
| 10 to 14 | 275 | 7.5 | 6.7 | 158 | 6.0 | 5.4 | +117 |
| 15 to 19 | 197 | 5.4 | 5.5 | 183 | 7.0 | 6.5 | +14 |
| 20 to 24 | 152 | 4.1 | 5.2 | 204 | 7.8 | 8.8 | -53 |
| 25 to 29 | 116 | 3.2 | 5.8 | 147 | 5.6 | 8.6 | -31 |
| 30 to 34 | 173 | 4.7 | 6.7 | 177 | 6.7 | 8.5 | -4 |
| 35 to 39 | 294 | 8.0 | 8.4 | 192 | 7.3 | 7.9 | +102 |
| 40 to 44 | 282 | 7.7 | 8.4 | 209 | 7.9 | 8.1 | +73 |
| 45 to 49 | 270 | 7.4 | 7.7 | 195 | 7.4 | 6.2 | +75 |
| 50 to 54 | 241 | 6.6 | 6.5 | 149 | 5.7 | 4.9 | +92 |
| 55 to 59 | 230 | 6.3 | 5.8 | 114 | 4.3 | 4.2 | +115 |
| 60 to 64 | 188 | 5.1 | 5.0 | 146 | 5.5 | 4.3 | +42 |
| 65 to 69 | 207 | 5.6 | 4.5 | 151 | 5.7 | 4.2 | +56 |
| 70 to 74 | 161 | 4.4 | 4.1 | 128 | 4.9 | 3.9 | +32 |
| 75 to 79 | 115 | 3.1 | 2.8 | 104 | 3.9 | 3.6 | +11 |
| 80 to 84 | 110 | 3.0 | 2.1 | 42 | 1.6 | 2.2 | +67 |
| 85 and over | 176 | 4.8 | 2.7 | 14 | 0.5 | 1.2 | +162 |
| Total population | 3,664 | 100.0 | 100.0 | 2,636 | 100.0 | 100.0 | +1,027 |
Dominant groups
Analysis of the five year age groups of Chatswood West - Lane Cove North in 2021 compared to Willoughby City shows that there was a higher proportion of people in the younger age groups (under 15) as well as a higher proportion of people in the older age groups (65+).
Overall, 20.5% of the population was aged between 0 and 15, and 21.0% were aged 65 years and over, compared with 18.7% and 16.3% respectively for Willoughby City.
The major differences between the age structure of Chatswood West - Lane Cove North and Willoughby City were:
- A larger percentage of persons aged 85 and over (4.8% compared to 2.7%)
- A larger percentage of persons aged 65 to 69 (5.6% compared to 4.5%)
- A smaller percentage of persons aged 25 to 29 (3.2% compared to 5.8%)
- A smaller percentage of persons aged 30 to 34 (4.7% compared to 6.7%)
Emerging groups
From 1991 to 2021, Chatswood West - Lane Cove North's population increased by 1,028 people (39.0%). This represents an average annual population change of 1.1% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 85 and over (+162 persons)
- 10 to 14 (+117 persons)
- 55 to 59 (+115 persons)
- 5 to 9 (+104 persons)
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