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LEARN MORE ABOUT .idIn 2021, the largest age group in Hobsons Bay City was 35 to 39 year olds. The group that changed the most since 2016 was 20 to 24 year olds, decreasing by 354 people.
The Age Structure of Hobsons Bay City provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Hobsons Bay City'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 Hobsons Bay City'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 | |||||||
|---|---|---|---|---|---|---|---|
| Hobsons Bay City - Total males (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Williamstown % | Number | % | Williamstown % | 2016 to 2021 |
| 0 to 4 | 3,035 | 6.8 | 4.6 | 3,137 | 7.2 | 6.2 | -102 |
| 5 to 9 | 2,936 | 6.6 | 6.6 | 2,848 | 6.5 | 7.8 | +88 |
| 10 to 14 | 2,688 | 6.0 | 8.4 | 2,352 | 5.4 | 7.4 | +336 |
| 15 to 19 | 2,278 | 5.1 | 7.0 | 2,425 | 5.6 | 7.1 | -147 |
| 20 to 24 | 2,378 | 5.3 | 5.6 | 2,732 | 6.3 | 4.9 | -354 |
| 25 to 29 | 2,863 | 6.4 | 3.6 | 3,058 | 7.0 | 4.4 | -195 |
| 30 to 34 | 3,268 | 7.3 | 3.9 | 3,455 | 7.9 | 4.5 | -187 |
| 35 to 39 | 3,609 | 8.1 | 4.6 | 3,323 | 7.6 | 6.2 | +286 |
| 40 to 44 | 3,351 | 7.5 | 6.5 | 3,285 | 7.5 | 7.2 | +66 |
| 45 to 49 | 3,154 | 7.1 | 7.5 | 3,121 | 7.2 | 7.9 | +33 |
| 50 to 54 | 3,063 | 6.9 | 8.4 | 3,004 | 6.9 | 8.3 | +59 |
| 55 to 59 | 2,862 | 6.4 | 8.7 | 2,789 | 6.4 | 7.6 | +73 |
| 60 to 64 | 2,555 | 5.7 | 7.1 | 2,229 | 5.1 | 6.8 | +326 |
| 65 to 69 | 2,107 | 4.7 | 6.4 | 1,876 | 4.3 | 5.5 | +231 |
| 70 to 74 | 1,711 | 3.8 | 5.1 | 1,372 | 3.1 | 3.7 | +339 |
| 75 to 79 | 1,184 | 2.6 | 3.1 | 1,076 | 2.5 | 2.0 | +108 |
| 80 to 84 | 857 | 1.9 | 1.6 | 814 | 1.9 | 1.1 | +43 |
| 85 and over | 790 | 1.8 | 1.4 | 733 | 1.7 | 1.3 | +57 |
| Total population | 44,689 | 100.0 | 100.0 | 43,629 | 100.0 | 100.0 | +1,060 |
Dominant groups
Analysis of the male five year age groups of Hobsons Bay City in 2021 compared to Williamstown shows that there was a similar proportion of males in the younger age groups (under 15) and a lower proportion of males in the older age groups (65+).
Overall, 19.4% of the male population was aged between 0 and 15, and 14.9% were aged 65 years and over, compared with 19.7% and 17.5% respectively for Williamstown.
The major differences between the male age structure of Hobsons Bay City and Williamstown were:
- A larger percentage of males aged 35 to 39 (8.1% compared to 4.6%)
- A larger percentage of males aged 30 to 34 (7.3% compared to 3.9%)
- A larger percentage of males aged 25 to 29 (6.4% compared to 3.6%)
- A smaller percentage of males aged 10 to 14 (6.0% compared to 8.4%)
Emerging groups
From 2016 to 2021, Hobsons Bay City's male population increased by 1,060 people (2.4%). This represents an average annual population change of 0.48% per year over the period.
The largest changes in male age structure in this area between 2016 and 2021 were in the age groups:
- 20 to 24 (-354 males)
- 70 to 74 (+339 males)
- 10 to 14 (+336 males)
- 60 to 64 (+326 males)
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