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 1991 was 55 to 59 year olds, increasing by 3,198 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 persons (Enumerated) | 2021 | 1991 | Change | |||||
| Five year age groups (years) | Number | % | Kings Park % | Number | % | Kings Park % | 1991 to 2021 | |
| 0 to 4 | 2,221 | 4.8 | 6.0 | 2,377 | 11.8 | 9.9 | -157 | 2001 |
| 5 to 9 | 2,386 | 5.1 | 6.7 | 2,205 | 10.9 | 11.2 | +181 | 2002 |
| 10 to 14 | 2,524 | 5.4 | 6.1 | 1,855 | 9.2 | 11.1 | +668 | 2003 |
| 15 to 19 | 2,998 | 6.5 | 6.0 | 1,538 | 7.6 | 9.2 | +1,459 | 2004 |
| 20 to 24 | 3,361 | 7.2 | 6.3 | 1,265 | 6.3 | 6.7 | +2,096 | 2005 |
| 25 to 29 | 3,252 | 7.0 | 6.9 | 1,856 | 9.2 | 8.7 | +1,396 | 2006 |
| 30 to 34 | 2,976 | 6.4 | 6.9 | 2,391 | 11.9 | 10.4 | +584 | 2007 |
| 35 to 39 | 2,740 | 5.9 | 6.8 | 2,078 | 10.3 | 10.3 | +662 | 2008 |
| 40 to 44 | 2,544 | 5.5 | 6.1 | 1,618 | 8.0 | 8.7 | +925 | 2009 |
| 45 to 49 | 3,026 | 6.5 | 5.9 | 1,006 | 5.0 | 5.0 | +2,019 | 2010 |
| 50 to 54 | 3,456 | 7.4 | 6.3 | 676 | 3.4 | 3.1 | +2,779 | 2011 |
| 55 to 59 | 3,637 | 7.8 | 5.9 | 438 | 2.2 | 2.2 | +3,198 | 2012 |
| 60 to 64 | 3,446 | 7.4 | 6.3 | 356 | 1.8 | 1.4 | +3,089 | 2013 |
| 65 to 69 | 2,728 | 5.9 | 6.4 | 177 | 0.9 | 1.0 | +2,551 | 2014 |
| 70 to 74 | 2,096 | 4.5 | 5.7 | 120 | 0.6 | 0.5 | +1,976 | 2015 |
| 75 to 79 | 1,366 | 2.9 | 3.3 | 75 | 0.4 | 0.3 | +1,291 | 2016 |
| 80 to 84 | 857 | 1.8 | 1.6 | 61 | 0.3 | 0.2 | +796 | 2017 |
| 85 and over | 862 | 1.9 | 1.0 | 44 | 0.2 | 0.1 | +818 | 2018 |
| Total population | 46,476 | 100.0 | 100.0 | 20,145 | 100.0 | 100.0 | +26,331 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 1991 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Enumerated 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 five year age groups of Sydenham District in 2021 compared to Kings Park 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, 15.3% of the population was aged between 0 and 15, and 17.0% were aged 65 years and over, compared with 18.7% and 17.9% respectively for Kings Park.
The major differences between the age structure of Sydenham District and Kings Park were:
- A larger percentage of persons aged 55 to 59 (7.8% compared to 5.9%)
- A smaller percentage of persons aged 5 to 9 (5.1% compared to 6.7%)
- A smaller percentage of persons aged 0 to 4 (4.8% compared to 6.0%)
- A smaller percentage of persons aged 70 to 74 (4.5% compared to 5.7%)
Emerging groups
From 1991 to 2021, Sydenham District's population increased by 26,331 people (130.7%). This represents an average annual population change of 2.83% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 55 to 59 (+3,198 persons)
- 60 to 64 (+3,089 persons)
- 50 to 54 (+2,779 persons)
- 65 to 69 (+2,551 persons)