Derrimut
Five year age groups
In 2021, the largest age group in Derrimut was 35 to 39 year olds. The group that changed the most since 2001 was 35 to 39 year olds, increasing by 936 people.
The Age Structure of Derrimut provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Derrimut'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 Derrimut'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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Derrimut - Total persons (Usual residence) | 2021 | 2001 | Change | |||||
| Five year age groups (years) | Number | % | Keilor Park & District % | Number | % | Keilor Park & District % | 2001 to 2021 | |
| 0 to 4 | 705 | 8.2 | 5.7 | -- | -- | 4.3 | -- | 2001 |
| 5 to 9 | 924 | 10.7 | 6.3 | -- | -- | 5.3 | -- | 2002 |
| 10 to 14 | 801 | 9.3 | 5.7 | -- | -- | 4.9 | -- | 2003 |
| 15 to 19 | 571 | 6.6 | 4.6 | -- | -- | 7.2 | -- | 2004 |
| 20 to 24 | 485 | 5.6 | 4.3 | -- | -- | 8.0 | -- | 2005 |
| 25 to 29 | 557 | 6.5 | 5.3 | -- | -- | 10.1 | -- | 2006 |
| 30 to 34 | 612 | 7.1 | 6.0 | -- | -- | 7.2 | -- | 2007 |
| 35 to 39 | 937 | 10.9 | 6.5 | -- | -- | 4.9 | -- | 2008 |
| 40 to 44 | 859 | 9.9 | 6.6 | -- | -- | 5.9 | -- | 2009 |
| 45 to 49 | 644 | 7.5 | 7.7 | -- | -- | 6.7 | -- | 2010 |
| 50 to 54 | 471 | 5.5 | 5.4 | -- | -- | 10.8 | -- | 2011 |
| 55 to 59 | 344 | 4.0 | 4.9 | -- | -- | 9.0 | -- | 2012 |
| 60 to 64 | 292 | 3.4 | 5.0 | -- | -- | 7.0 | -- | 2013 |
| 65 to 69 | 187 | 2.2 | 5.0 | -- | -- | 4.1 | -- | 2014 |
| 70 to 74 | 118 | 1.4 | 8.0 | -- | -- | 2.3 | -- | 2015 |
| 75 to 79 | 74 | 0.9 | 6.7 | -- | -- | 1.1 | -- | 2016 |
| 80 to 84 | 38 | 0.4 | 3.9 | -- | -- | 0.8 | -- | 2017 |
| 85 and over | 16 | 0.2 | 2.4 | -- | -- | 0.3 | -- | 2018 |
| Total population | 8,635 | 100.0 | 100.0 | 11 | 100.0 | 100.0 | +8,624 | |
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 five year age groups of Derrimut in 2021 compared to Keilor Park & District shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 28.1% of the population was aged between 0 and 15, and 5.0% were aged 65 years and over, compared with 17.7% and 26.0% respectively for Keilor Park & District.
The major differences between the age structure of Derrimut and Keilor Park & District were:
- A larger percentage of persons aged 5 to 9 (10.7% compared to 6.3%)
- A larger percentage of persons aged 35 to 39 (10.9% compared to 6.5%)
- A smaller percentage of persons aged 70 to 74 (1.4% compared to 8.0%)
- A smaller percentage of persons aged 75 to 79 (0.9% compared to 6.7%)