Sydenham District
Five year age groups
In 2021, the largest age group in Sydenham District was 55 to 59 year olds. The group that changed the most since 2001 was 60 to 64 year olds, increasing by 1,283 people.
The Age Structure of Sydenham District 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 District'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 District's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.
Derived from the Census question:
'What is the person's date of birth or age?'
Total population
| Age structure - Five year age groups | ||||||||
|---|---|---|---|---|---|---|---|---|
| Sydenham District - Total females (Usual residence) | 2021 | 2001 | Change | |||||
| Five year age groups (years) | Number | % | Keilor District % | Number | % | Keilor District % | 2001 to 2021 | |
| 0 to 4 | 1,051 | 4.5 | 3.9 | 1,915 | 8.3 | 5.5 | -865 | 2001 |
| 5 to 9 | 1,172 | 5.0 | 4.9 | 2,052 | 8.8 | 5.6 | -880 | 2002 |
| 10 to 14 | 1,206 | 5.1 | 5.7 | 2,076 | 8.9 | 6.4 | -871 | 2003 |
| 15 to 19 | 1,477 | 6.3 | 5.8 | 1,805 | 7.8 | 7.4 | -328 | 2004 |
| 20 to 24 | 1,602 | 6.8 | 5.0 | 1,526 | 6.6 | 7.6 | +76 | 2005 |
| 25 to 29 | 1,505 | 6.4 | 4.4 | 1,900 | 8.2 | 6.0 | -396 | 2006 |
| 30 to 34 | 1,470 | 6.2 | 5.2 | 2,308 | 9.9 | 6.5 | -839 | 2007 |
| 35 to 39 | 1,412 | 6.0 | 5.6 | 2,255 | 9.7 | 6.0 | -844 | 2008 |
| 40 to 44 | 1,319 | 5.6 | 6.0 | 2,149 | 9.3 | 7.9 | -830 | 2009 |
| 45 to 49 | 1,622 | 6.9 | 7.1 | 1,617 | 7.0 | 7.9 | +5 | 2010 |
| 50 to 54 | 1,894 | 8.0 | 6.9 | 1,188 | 5.1 | 10.4 | +706 | 2011 |
| 55 to 59 | 1,930 | 8.2 | 6.4 | 697 | 3.0 | 7.7 | +1,232 | 2012 |
| 60 to 64 | 1,808 | 7.7 | 6.8 | 524 | 2.3 | 4.3 | +1,283 | 2013 |
| 65 to 69 | 1,386 | 5.9 | 6.0 | 387 | 1.7 | 3.4 | +999 | 2014 |
| 70 to 74 | 1,039 | 4.4 | 7.9 | 284 | 1.2 | 2.5 | +755 | 2015 |
| 75 to 79 | 682 | 2.9 | 5.4 | 201 | 0.9 | 2.2 | +481 | 2016 |
| 80 to 84 | 460 | 2.0 | 3.3 | 149 | 0.6 | 1.7 | +311 | 2017 |
| 85 and over | 527 | 2.2 | 4.0 | 166 | 0.7 | 1.0 | +361 | 2018 |
| Total population | 23,562 | 100.0 | 100.0 | 23,207 | 100.0 | 100.0 | +355 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2001 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Usual residence data)
Compiled and presented in profile.id by .id (informed decisions).
Compiled and presented in profile.id by .id (informed decisions).
Dominant groups
Analysis of the female five year age groups of Sydenham District in 2021 compared to Keilor District shows that there was a similar proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 14.6% of the female population was aged between 0 and 15, and 17.4% were aged 65 years and over, compared with 14.4% and 26.5% respectively for Keilor District.
The major differences between the female age structure of Sydenham District and Keilor District were:
- A larger percentage of females aged 25 to 29 (6.4% compared to 4.4%)
- A larger percentage of females aged 20 to 24 (6.8% compared to 5.0%)
- A smaller percentage of females aged 70 to 74 (4.4% compared to 7.9%)
- A smaller percentage of females aged 75 to 79 (2.9% compared to 5.4%)
Emerging groups
From 2001 to 2021, Sydenham District's female population increased by 355 people (1.5%). This represents an average annual population change of 0.08% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 60 to 64 (+1,283 females)
- 55 to 59 (+1,232 females)
- 65 to 69 (+999 females)
- 5 to 9 (-880 females)