Powered by .id (informed decisions) for Hobsons Bay City
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LEARN MORE ABOUT .idIn 2021, the largest age group in Williamstown was 50 to 54 year olds. The group that changed the most since 2006 was 60 to 64 year olds, increasing by 234 people.
The Age Structure of Williamstown provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Williamstown'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 Williamstown'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 | |||||||
|---|---|---|---|---|---|---|---|
| Williamstown - Total females (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Hobsons Bay City % | Number | % | Hobsons Bay City % | 2006 to 2021 |
| 0 to 4 | 206 | 3.5 | 5.9 | 331 | 6.4 | 6.3 | -125 |
| 5 to 9 | 370 | 6.3 | 6.2 | 310 | 6.0 | 6.1 | +59 |
| 10 to 14 | 417 | 7.1 | 5.7 | 335 | 6.5 | 6.2 | +82 |
| 15 to 19 | 311 | 5.3 | 4.7 | 249 | 4.8 | 5.9 | +61 |
| 20 to 24 | 250 | 4.3 | 4.7 | 250 | 4.8 | 6.0 | 0 |
| 25 to 29 | 218 | 3.7 | 6.0 | 266 | 5.2 | 6.2 | -49 |
| 30 to 34 | 287 | 4.9 | 7.5 | 352 | 6.8 | 7.8 | -65 |
| 35 to 39 | 337 | 5.8 | 8.1 | 473 | 9.2 | 8.7 | -137 |
| 40 to 44 | 435 | 7.4 | 7.5 | 473 | 9.2 | 8.2 | -39 |
| 45 to 49 | 496 | 8.5 | 7.2 | 438 | 8.5 | 7.7 | +57 |
| 50 to 54 | 535 | 9.1 | 7.2 | 355 | 6.9 | 6.2 | +180 |
| 55 to 59 | 472 | 8.1 | 6.2 | 344 | 6.7 | 5.6 | +128 |
| 60 to 64 | 445 | 7.6 | 5.9 | 210 | 4.1 | 4.1 | +234 |
| 65 to 69 | 326 | 5.6 | 4.8 | 167 | 3.2 | 3.8 | +158 |
| 70 to 74 | 295 | 5.0 | 4.2 | 120 | 2.3 | 3.6 | +174 |
| 75 to 79 | 197 | 3.4 | 3.1 | 186 | 3.6 | 3.2 | +11 |
| 80 to 84 | 121 | 2.1 | 2.4 | 140 | 2.7 | 2.4 | -19 |
| 85 and over | 132 | 2.3 | 2.9 | 152 | 3.0 | 2.0 | -20 |
| Total population | 5,850 | 100.0 | 100.0 | 5,160 | 100.0 | 100.0 | +690 |
Dominant groups
Analysis of the female five year age groups of Williamstown in 2021 compared to Hobsons Bay City shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 17.0% of the female population was aged between 0 and 15, and 18.3% were aged 65 years and over, compared with 17.8% and 17.3% respectively for Hobsons Bay City.
The major differences between the female age structure of Williamstown and Hobsons Bay City were:
- A smaller percentage of females aged 30 to 34 (4.9% compared to 7.5%)
- A smaller percentage of females aged 0 to 4 (3.5% compared to 5.9%)
- A smaller percentage of females aged 35 to 39 (5.8% compared to 8.1%)
- A smaller percentage of females aged 25 to 29 (3.7% compared to 6.0%)
Emerging groups
From 2006 to 2021, Williamstown's female population increased by 690 people (13.4%). This represents an average annual population change of 0.84% per year over the period.
The largest changes in female age structure in this area between 2006 and 2021 were in the age groups:
- 60 to 64 (+234 females)
- 50 to 54 (+180 females)
- 70 to 74 (+174 females)
- 65 to 69 (+158 females)
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