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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 2006 was 55 to 59 year olds, increasing by 451 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 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | City of Brimbank % | Number | % | City of Brimbank % | 2006 to 2021 |
| 0 to 4 | 649 | 5.5 | 5.6 | 1,005 | 9.3 | 6.5 | -356 |
| 5 to 9 | 653 | 5.6 | 6.0 | 962 | 8.9 | 6.8 | -309 |
| 10 to 14 | 669 | 5.7 | 5.7 | 876 | 8.1 | 7.2 | -207 |
| 15 to 19 | 739 | 6.3 | 5.7 | 772 | 7.2 | 7.4 | -33 |
| 20 to 24 | 940 | 8.0 | 6.9 | 765 | 7.1 | 7.6 | +175 |
| 25 to 29 | 944 | 8.1 | 8.1 | 837 | 7.8 | 7.1 | +107 |
| 30 to 34 | 915 | 7.8 | 7.6 | 1,092 | 10.1 | 7.3 | -177 |
| 35 to 39 | 820 | 7.0 | 7.2 | 992 | 9.2 | 7.5 | -172 |
| 40 to 44 | 705 | 6.0 | 6.4 | 877 | 8.1 | 7.3 | -172 |
| 45 to 49 | 819 | 7.0 | 6.3 | 748 | 6.9 | 7.2 | +71 |
| 50 to 54 | 817 | 7.0 | 6.3 | 542 | 5.0 | 6.9 | +275 |
| 55 to 59 | 827 | 7.1 | 6.1 | 376 | 3.5 | 6.2 | +451 |
| 60 to 64 | 630 | 5.4 | 5.8 | 298 | 2.8 | 4.5 | +332 |
| 65 to 69 | 476 | 4.1 | 5.1 | 201 | 1.9 | 3.4 | +275 |
| 70 to 74 | 360 | 3.1 | 4.3 | 109 | 1.0 | 2.7 | +251 |
| 75 to 79 | 262 | 2.2 | 3.0 | 93 | 0.9 | 2.1 | +169 |
| 80 to 84 | 201 | 1.7 | 2.0 | 79 | 0.7 | 1.4 | +122 |
| 85 and over | 296 | 2.5 | 1.9 | 153 | 1.4 | 0.9 | +143 |
| Total population | 11,722 | 100.0 | 100.0 | 10,777 | 100.0 | 100.0 | +945 |
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 2006 to 2021, Sydenham - Hillside's population increased by 945 people (8.8%). This represents an average annual population change of 0.56% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 55 to 59 (+451 persons)
- 0 to 4 (-356 persons)
- 60 to 64 (+332 persons)
- 5 to 9 (-309 persons)
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