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LEARN MORE ABOUT .idIn 2021, the largest age group in Keilor Downs was 25 to 29 year olds. The group that changed the most since 1991 was 5 to 9 year olds, decreasing by 329 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 males (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Brimbank % | Number | % | City of Brimbank % | 1991 to 2021 |
| 0 to 4 | 270 | 5.5 | 5.9 | 567 | 11.3 | 8.1 | -297 |
| 5 to 9 | 276 | 5.7 | 6.2 | 605 | 12.0 | 8.4 | -329 |
| 10 to 14 | 271 | 5.6 | 5.9 | 513 | 10.2 | 9.2 | -242 |
| 15 to 19 | 261 | 5.3 | 5.8 | 414 | 8.2 | 9.3 | -154 |
| 20 to 24 | 311 | 6.4 | 7.2 | 303 | 6.0 | 8.9 | +7 |
| 25 to 29 | 365 | 7.5 | 8.7 | 323 | 6.4 | 7.7 | +41 |
| 30 to 34 | 291 | 6.0 | 7.6 | 517 | 10.3 | 7.9 | -227 |
| 35 to 39 | 297 | 6.1 | 7.2 | 515 | 10.3 | 7.9 | -219 |
| 40 to 44 | 285 | 5.8 | 6.4 | 439 | 8.7 | 8.2 | -154 |
| 45 to 49 | 274 | 5.6 | 6.1 | 304 | 6.0 | 6.5 | -30 |
| 50 to 54 | 259 | 5.3 | 6.1 | 189 | 3.8 | 5.1 | +69 |
| 55 to 59 | 297 | 6.1 | 6.1 | 143 | 2.9 | 4.0 | +153 |
| 60 to 64 | 360 | 7.4 | 5.6 | 81 | 1.6 | 3.1 | +279 |
| 65 to 69 | 345 | 7.1 | 4.8 | 53 | 1.1 | 2.5 | +292 |
| 70 to 74 | 306 | 6.3 | 4.2 | 20 | 0.4 | 1.5 | +286 |
| 75 to 79 | 203 | 4.2 | 2.9 | 18 | 0.4 | 0.9 | +184 |
| 80 to 84 | 119 | 2.4 | 1.9 | 11 | 0.2 | 0.4 | +108 |
| 85 and over | 90 | 1.8 | 1.4 | 6 | 0.1 | 0.1 | +84 |
| Total population | 4,880 | 100.0 | 100.0 | 5,028 | 100.0 | 100.0 | -149 |
Dominant groups
Analysis of the male five year age groups of Keilor Downs in 2021 compared to the City of Brimbank shows that there was a lower proportion of males in the younger age groups (under 15) and a higher proportion of males in the older age groups (65+).
Overall, 16.7% of the male population was aged between 0 and 15, and 21.8% were aged 65 years and over, compared with 18.0% and 15.2% respectively for the City of Brimbank.
The major differences between the male age structure of Keilor Downs and the City of Brimbank were:
- A larger percentage of males aged 65 to 69 (7.1% compared to 4.8%)
- A larger percentage of males aged 70 to 74 (6.3% compared to 4.2%)
- A larger percentage of males aged 60 to 64 (7.4% compared to 5.6%)
- A smaller percentage of males aged 30 to 34 (6.0% compared to 7.6%)
Emerging groups
From 1991 to 2021, Keilor Downs's male population decreased by 148 people (2.9%). This represents an average annual population change of -0.1% per year over the period.
The largest changes in male age structure in this area between 1991 and 2021 were in the age groups:
- 5 to 9 (-329 males)
- 0 to 4 (-297 males)
- 65 to 69 (+292 males)
- 70 to 74 (+286 males)
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