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LEARN MORE ABOUT .idIn 2021, the largest age group in Keilor Downs was 60 to 64 year olds. The group that changed the most since 2006 was 45 to 49 year olds, decreasing by 253 people.
The Age Structure of Keilor Downs provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Keilor Downs'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 Keilor Downs'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 | |||||||
|---|---|---|---|---|---|---|---|
| Keilor Downs - Total females (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Derrimut % | Number | % | Derrimut % | 2006 to 2021 |
| 0 to 4 | 222 | 4.5 | 8.0 | 276 | 5.1 | 9.6 | -55 |
| 5 to 9 | 254 | 5.1 | 10.6 | 288 | 5.3 | 6.9 | -35 |
| 10 to 14 | 218 | 4.4 | 9.3 | 337 | 6.2 | 7.0 | -119 |
| 15 to 19 | 272 | 5.5 | 6.5 | 508 | 9.3 | 7.1 | -236 |
| 20 to 24 | 297 | 6.0 | 5.1 | 455 | 8.3 | 7.0 | -159 |
| 25 to 29 | 304 | 6.1 | 5.9 | 315 | 5.8 | 16.6 | -11 |
| 30 to 34 | 319 | 6.4 | 7.3 | 306 | 5.6 | 15.6 | +12 |
| 35 to 39 | 306 | 6.1 | 12.1 | 373 | 6.8 | 9.2 | -67 |
| 40 to 44 | 270 | 5.4 | 10.0 | 482 | 8.8 | 5.9 | -212 |
| 45 to 49 | 305 | 6.1 | 7.6 | 557 | 10.2 | 4.0 | -253 |
| 50 to 54 | 315 | 6.3 | 5.2 | 487 | 8.9 | 4.6 | -172 |
| 55 to 59 | 377 | 7.6 | 3.6 | 347 | 6.4 | 2.4 | +29 |
| 60 to 64 | 421 | 8.4 | 3.3 | 206 | 3.8 | 1.3 | +215 |
| 65 to 69 | 391 | 7.8 | 2.6 | 175 | 3.2 | 1.6 | +215 |
| 70 to 74 | 283 | 5.7 | 1.2 | 114 | 2.1 | 0.8 | +168 |
| 75 to 79 | 174 | 3.5 | 1.0 | 113 | 2.1 | 0.4 | +60 |
| 80 to 84 | 132 | 2.6 | 0.4 | 50 | 0.9 | -- | +81 |
| 85 and over | 125 | 2.5 | 0.2 | 68 | 1.3 | -- | +57 |
| Total population | 4,985 | 100.0 | 100.0 | 5,466 | 100.0 | 100.0 | -482 |
Dominant groups
Analysis of the female five year age groups of Keilor Downs in 2021 compared to Derrimut shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 13.9% of the female population was aged between 0 and 15, and 22.2% were aged 65 years and over, compared with 27.9% and 5.5% respectively for Derrimut.
The major differences between the female age structure of Keilor Downs and Derrimut were:
- A larger percentage of females aged 65 to 69 (7.8% compared to 2.6%)
- A larger percentage of females aged 60 to 64 (8.4% compared to 3.3%)
- A smaller percentage of females aged 35 to 39 (6.1% compared to 12.1%)
- A smaller percentage of females aged 5 to 9 (5.1% compared to 10.6%)
Emerging groups
From 2006 to 2021, Keilor Downs's female population decreased by 481 people (8.8%). This represents an average annual population change of -0.61% per year over the period.
The largest changes in female age structure in this area between 2006 and 2021 were in the age groups:
- 45 to 49 (-253 females)
- 15 to 19 (-236 females)
- 65 to 69 (+215 females)
- 60 to 64 (+215 females)
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