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LEARN MORE ABOUT .idIn 2021, the largest age group in Sydenham - Hillside was 25 to 29 year olds. The group that changed the most since 2001 was 55 to 59 year olds, increasing by 615 people.
The Age Structure of Sydenham - Hillside provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Sydenham - Hillside'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 Sydenham - Hillside'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 | |||||||
|---|---|---|---|---|---|---|---|
| Sydenham - Hillside - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | City of Brimbank % | Number | % | City of Brimbank % | 2001 to 2021 |
| 0 to 4 | 649 | 5.5 | 5.6 | 968 | 11.2 | 7.0 | -319 |
| 5 to 9 | 653 | 5.6 | 6.0 | 831 | 9.6 | 7.6 | -178 |
| 10 to 14 | 669 | 5.7 | 5.7 | 677 | 7.8 | 7.4 | -8 |
| 15 to 19 | 739 | 6.3 | 5.7 | 543 | 6.3 | 7.7 | +196 |
| 20 to 24 | 940 | 8.0 | 6.9 | 582 | 6.7 | 7.7 | +358 |
| 25 to 29 | 944 | 8.1 | 8.1 | 989 | 11.4 | 7.7 | -45 |
| 30 to 34 | 915 | 7.8 | 7.6 | 1,064 | 12.3 | 7.9 | -149 |
| 35 to 39 | 820 | 7.0 | 7.2 | 822 | 9.5 | 7.6 | -2 |
| 40 to 44 | 705 | 6.0 | 6.4 | 661 | 7.6 | 7.6 | +44 |
| 45 to 49 | 819 | 7.0 | 6.3 | 463 | 5.4 | 7.3 | +356 |
| 50 to 54 | 817 | 7.0 | 6.3 | 320 | 3.7 | 6.8 | +497 |
| 55 to 59 | 827 | 7.1 | 6.1 | 212 | 2.5 | 4.9 | +615 |
| 60 to 64 | 630 | 5.4 | 5.8 | 144 | 1.7 | 3.7 | +486 |
| 65 to 69 | 476 | 4.1 | 5.1 | 118 | 1.4 | 3.1 | +358 |
| 70 to 74 | 360 | 3.1 | 4.3 | 64 | 0.7 | 2.5 | +296 |
| 75 to 79 | 262 | 2.2 | 3.0 | 70 | 0.8 | 1.9 | +192 |
| 80 to 84 | 201 | 1.7 | 2.0 | 61 | 0.7 | 1.0 | +140 |
| 85 and over | 296 | 2.5 | 1.9 | 63 | 0.7 | 0.7 | +233 |
| Total population | 11,722 | 100.0 | 100.0 | 8,652 | 100.0 | 100.0 | +3,070 |
Dominant groups
Analysis of the five year age groups of Sydenham - Hillside in 2021 compared to the City of Brimbank shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).
Overall, 16.8% of the population was aged between 0 and 15, and 13.6% were aged 65 years and over, compared with 17.3% and 16.3% respectively for the City of Brimbank.
The major differences between the age structure of Sydenham - Hillside and the City of Brimbank were:
- A larger percentage of persons aged 20 to 24 (8.0% compared to 6.9%)
- A larger percentage of persons aged 55 to 59 (7.1% compared to 6.1%)
- A smaller percentage of persons aged 70 to 74 (3.1% compared to 4.3%)
- A smaller percentage of persons aged 65 to 69 (4.1% compared to 5.1%)
Emerging groups
From 2001 to 2021, Sydenham - Hillside's population increased by 3,070 people (35.5%). This represents an average annual population change of 1.53% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 55 to 59 (+615 persons)
- 50 to 54 (+497 persons)
- 60 to 64 (+486 persons)
- 20 to 24 (+358 persons)
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