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LEARN MORE ABOUT .idIn 2021, the largest age group in Cairnlea was 45 to 49 year olds. The group that changed the most since 2006 was 60 to 64 year olds, increasing by 253 people.
The Age Structure of Cairnlea provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Cairnlea'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 Cairnlea'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 | |||||||
|---|---|---|---|---|---|---|---|
| Cairnlea - Total females (Usual residence) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Keilor % | Number | % | Keilor % | 2006 to 2021 |
| 0 to 4 | 236 | 4.6 | 3.7 | 256 | 8.2 | 5.0 | -21 |
| 5 to 9 | 366 | 7.2 | 4.2 | 249 | 8.0 | 5.8 | +117 |
| 10 to 14 | 356 | 7.0 | 6.0 | 254 | 8.2 | 6.8 | +102 |
| 15 to 19 | 390 | 7.6 | 6.5 | 223 | 7.1 | 6.7 | +167 |
| 20 to 24 | 370 | 7.3 | 5.2 | 304 | 9.8 | 7.3 | +66 |
| 25 to 29 | 348 | 6.8 | 4.0 | 288 | 9.2 | 4.3 | +60 |
| 30 to 34 | 300 | 5.9 | 5.1 | 333 | 10.7 | 4.8 | -34 |
| 35 to 39 | 355 | 7.0 | 5.1 | 286 | 9.2 | 7.0 | +69 |
| 40 to 44 | 399 | 7.8 | 5.6 | 253 | 8.1 | 7.5 | +146 |
| 45 to 49 | 425 | 8.3 | 6.8 | 229 | 7.4 | 7.8 | +196 |
| 50 to 54 | 403 | 7.9 | 7.7 | 169 | 5.4 | 8.2 | +234 |
| 55 to 59 | 325 | 6.4 | 7.2 | 109 | 3.5 | 8.4 | +216 |
| 60 to 64 | 290 | 5.7 | 7.3 | 37 | 1.2 | 5.6 | +253 |
| 65 to 69 | 227 | 4.5 | 6.1 | 34 | 1.1 | 3.5 | +193 |
| 70 to 74 | 142 | 2.8 | 6.9 | 38 | 1.2 | 3.5 | +104 |
| 75 to 79 | 71 | 1.4 | 4.8 | 21 | 0.7 | 3.9 | +50 |
| 80 to 84 | 31 | 0.6 | 3.0 | 28 | 0.9 | 2.0 | +3 |
| 85 and over | 67 | 1.3 | 4.7 | 4 | 0.1 | 1.6 | +63 |
| Total population | 5,101 | 100.0 | 100.0 | 3,120 | 100.0 | 100.0 | +1,981 |
Dominant groups
Analysis of the female five year age groups of Cairnlea in 2021 compared to Keilor shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 18.8% of the female population was aged between 0 and 15, and 10.5% were aged 65 years and over, compared with 13.9% and 25.6% respectively for Keilor.
The major differences between the female age structure of Cairnlea and Keilor were:
- A larger percentage of females aged 5 to 9 (7.2% compared to 4.2%)
- A smaller percentage of females aged 70 to 74 (2.8% compared to 6.9%)
- A smaller percentage of females aged 85 and over (1.3% compared to 4.7%)
- A smaller percentage of females aged 75 to 79 (1.4% compared to 4.8%)
Emerging groups
From 2006 to 2021, Cairnlea's female population increased by 1,981 people (63.5%). This represents an average annual population change of 3.33% per year over the period.
The largest changes in female age structure in this area between 2006 and 2021 were in the age groups:
- 60 to 64 (+253 females)
- 50 to 54 (+234 females)
- 55 to 59 (+216 females)
- 45 to 49 (+196 females)
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