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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of Knox was 35 to 39 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 978 people.
The Age Structure of the City of Knox provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Knox'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 the City of Knox'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 | |||||||
|---|---|---|---|---|---|---|---|
| City of Knox - Total females (Enumerated) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Wantirna South % | Number | % | Wantirna South % | 2016 to 2021 |
| 0 to 4 | 4,159 | 5.1 | 4.6 | 4,412 | 5.7 | 4.4 | -253 |
| 5 to 9 | 4,590 | 5.7 | 5.2 | 4,279 | 5.5 | 4.7 | +311 |
| 10 to 14 | 4,324 | 5.3 | 5.0 | 4,382 | 5.6 | 4.9 | -58 |
| 15 to 19 | 4,465 | 5.5 | 5.4 | 4,805 | 6.2 | 6.2 | -340 |
| 20 to 24 | 4,619 | 5.7 | 5.8 | 4,922 | 6.3 | 6.9 | -303 |
| 25 to 29 | 4,681 | 5.8 | 5.2 | 4,925 | 6.3 | 6.2 | -244 |
| 30 to 34 | 5,499 | 6.8 | 6.0 | 5,324 | 6.8 | 5.8 | +175 |
| 35 to 39 | 5,892 | 7.3 | 6.8 | 5,206 | 6.7 | 5.8 | +686 |
| 40 to 44 | 5,526 | 6.8 | 6.7 | 5,416 | 6.9 | 6.0 | +110 |
| 45 to 49 | 5,521 | 6.8 | 6.2 | 5,798 | 7.4 | 7.0 | -277 |
| 50 to 54 | 5,647 | 7.0 | 6.7 | 5,622 | 7.2 | 6.9 | +25 |
| 55 to 59 | 5,492 | 6.8 | 6.4 | 5,322 | 6.8 | 7.7 | +170 |
| 60 to 64 | 5,102 | 6.3 | 7.3 | 4,759 | 6.1 | 6.7 | +343 |
| 65 to 69 | 4,484 | 5.5 | 6.1 | 4,022 | 5.2 | 5.3 | +462 |
| 70 to 74 | 3,842 | 4.8 | 5.0 | 2,864 | 3.7 | 4.0 | +978 |
| 75 to 79 | 2,752 | 3.4 | 3.9 | 2,197 | 2.8 | 3.1 | +555 |
| 80 to 84 | 2,039 | 2.5 | 3.1 | 1,638 | 2.1 | 3.1 | +401 |
| 85 and over | 2,217 | 2.7 | 4.6 | 2,066 | 2.7 | 5.2 | +151 |
| Total population | 80,851 | 100.0 | 100.0 | 77,959 | 100.0 | 100.0 | +2,892 |
Dominant groups
Analysis of the female five year age groups of the City of Knox in 2021 compared to Wantirna South shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 16.2% of the female population was aged between 0 and 15, and 19.0% were aged 65 years and over, compared with 14.8% and 22.7% respectively for Wantirna South.
The major differences between the female age structure of the City of Knox and Wantirna South were:
- A larger percentage of females aged 30 to 34 (6.8% compared to 6.0%)
- A larger percentage of females aged 45 to 49 (6.8% compared to 6.2%)
- A smaller percentage of females aged 85 and over (2.7% compared to 4.6%)
- A smaller percentage of females aged 60 to 64 (6.3% compared to 7.3%)
Emerging groups
From 2016 to 2021, City of Knox's female population increased by 2,892 people (3.7%). This represents an average annual population change of 0.73% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
- 70 to 74 (+978 females)
- 35 to 39 (+686 females)
- 75 to 79 (+555 females)
- 65 to 69 (+462 females)
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