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LEARN MORE ABOUT .idIn 2021, the largest age group in Altona - Seaholme was 35 to 39 year olds. The group that changed the most since 1996 was 20 to 24 year olds, decreasing by 357 people.
The Age Structure of Altona - Seaholme provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Altona - Seaholme'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 Altona - Seaholme'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 | |||||||
|---|---|---|---|---|---|---|---|
| Altona - Seaholme - Total persons (Enumerated) | 2021 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | Hobsons Bay City % | Number | % | Hobsons Bay City % | 1996 to 2021 |
| 0 to 4 | 776 | 5.8 | 6.3 | 605 | 5.2 | 7.7 | +171 |
| 5 to 9 | 867 | 6.5 | 6.4 | 570 | 4.9 | 6.9 | +297 |
| 10 to 14 | 712 | 5.3 | 5.9 | 599 | 5.2 | 6.1 | +113 |
| 15 to 19 | 568 | 4.2 | 4.9 | 781 | 6.8 | 6.2 | -213 |
| 20 to 24 | 532 | 4.0 | 5.0 | 889 | 7.7 | 7.3 | -357 |
| 25 to 29 | 664 | 5.0 | 6.2 | 912 | 7.9 | 8.7 | -248 |
| 30 to 34 | 895 | 6.7 | 7.4 | 712 | 6.2 | 8.8 | +183 |
| 35 to 39 | 1,136 | 8.5 | 8.1 | 836 | 7.3 | 8.5 | +300 |
| 40 to 44 | 1,058 | 7.9 | 7.5 | 756 | 6.6 | 7.2 | +302 |
| 45 to 49 | 995 | 7.4 | 7.1 | 854 | 7.4 | 6.6 | +141 |
| 50 to 54 | 984 | 7.4 | 7.0 | 759 | 6.6 | 5.1 | +225 |
| 55 to 59 | 785 | 5.9 | 6.3 | 664 | 5.8 | 4.7 | +121 |
| 60 to 64 | 802 | 6.0 | 5.8 | 645 | 5.6 | 4.3 | +157 |
| 65 to 69 | 687 | 5.1 | 4.7 | 608 | 5.3 | 4.0 | +79 |
| 70 to 74 | 651 | 4.9 | 4.0 | 590 | 5.1 | 3.5 | +61 |
| 75 to 79 | 510 | 3.8 | 2.8 | 400 | 3.5 | 2.2 | +110 |
| 80 to 84 | 362 | 2.7 | 2.1 | 237 | 2.1 | 1.5 | +125 |
| 85 and over | 386 | 2.9 | 2.3 | 109 | 0.9 | 0.9 | +277 |
| Total population | 13,370 | 100.0 | 100.0 | 11,526 | 100.0 | 100.0 | +1,844 |
Dominant groups
Analysis of the five year age groups of Altona - Seaholme in 2021 compared to Hobsons Bay City shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 17.6% of the population was aged between 0 and 15, and 19.4% were aged 65 years and over, compared with 18.6% and 16.0% respectively for Hobsons Bay City.
The major differences between the age structure of Altona - Seaholme and Hobsons Bay City were:
- A larger percentage of persons aged 75 to 79 (3.8% compared to 2.8%)
- A larger percentage of persons aged 70 to 74 (4.9% compared to 4.0%)
- A smaller percentage of persons aged 25 to 29 (5.0% compared to 6.2%)
- A smaller percentage of persons aged 20 to 24 (4.0% compared to 5.0%)
Emerging groups
From 1996 to 2021, Altona - Seaholme's population increased by 1,844 people (16.0%). This represents an average annual population change of 0.6% per year over the period.
The largest changes in age structure in this area between 1996 and 2021 were in the age groups:
- 20 to 24 (-357 persons)
- 40 to 44 (+302 persons)
- 35 to 39 (+300 persons)
- 5 to 9 (+297 persons)
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