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LEARN MORE ABOUT .idIn 2021, the largest age group in Aldinga Beach was 5 to 9 year olds. The group that changed the most since 1991 was 10 to 14 year olds, increasing by 299 people.
The Age Structure of Aldinga Beach provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Aldinga Beach'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 Aldinga Beach'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 | |||||||
|---|---|---|---|---|---|---|---|
| Aldinga Beach - Total females (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Willunga and Surrounds % | Number | % | Willunga and Surrounds % | 1991 to 2021 |
| 0 to 4 | 293 | 5.3 | 3.7 | 140 | 8.8 | 7.0 | +152 |
| 5 to 9 | 411 | 7.5 | 6.2 | 154 | 9.6 | 9.8 | +257 |
| 10 to 14 | 389 | 7.1 | 6.2 | 90 | 5.6 | 7.7 | +299 |
| 15 to 19 | 341 | 6.2 | 5.9 | 82 | 5.2 | 6.3 | +259 |
| 20 to 24 | 261 | 4.8 | 4.4 | 103 | 6.5 | 3.6 | +157 |
| 25 to 29 | 275 | 5.0 | 3.7 | 148 | 9.3 | 5.4 | +126 |
| 30 to 34 | 331 | 6.0 | 4.2 | 139 | 8.7 | 9.6 | +192 |
| 35 to 39 | 411 | 7.5 | 4.5 | 125 | 7.8 | 10.0 | +285 |
| 40 to 44 | 390 | 7.1 | 7.4 | 103 | 6.4 | 9.8 | +287 |
| 45 to 49 | 364 | 6.6 | 7.0 | 71 | 4.5 | 8.0 | +293 |
| 50 to 54 | 320 | 5.8 | 9.2 | 79 | 5.0 | 6.0 | +241 |
| 55 to 59 | 341 | 6.2 | 7.1 | 78 | 4.9 | 4.3 | +262 |
| 60 to 64 | 319 | 5.8 | 8.7 | 98 | 6.2 | 3.3 | +220 |
| 65 to 69 | 289 | 5.3 | 7.6 | 55 | 3.5 | 3.6 | +234 |
| 70 to 74 | 293 | 5.3 | 6.4 | 60 | 3.8 | 2.5 | +232 |
| 75 to 79 | 203 | 3.7 | 3.8 | 42 | 2.6 | 1.2 | +161 |
| 80 to 84 | 125 | 2.3 | 2.8 | 20 | 1.3 | 1.1 | +104 |
| 85 and over | 130 | 2.4 | 1.4 | 4 | 0.3 | 0.6 | +125 |
| Total population | 5,486 | 100.0 | 100.0 | 1,600 | 100.0 | 100.0 | +3,885 |
Dominant groups
Analysis of the female five year age groups of Aldinga Beach in 2021 compared to Willunga and Surrounds 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, 19.9% of the female population was aged between 0 and 15, and 19.0% were aged 65 years and over, compared with 16.1% and 21.9% respectively for Willunga and Surrounds.
The major differences between the female age structure of Aldinga Beach and Willunga and Surrounds were:
- A larger percentage of females aged 35 to 39 (7.5% compared to 4.5%)
- A smaller percentage of females aged 50 to 54 (5.8% compared to 9.2%)
- A smaller percentage of females aged 60 to 64 (5.8% compared to 8.7%)
- A smaller percentage of females aged 65 to 69 (5.3% compared to 7.6%)
Emerging groups
From 1991 to 2021, Aldinga Beach's female population increased by 3,886 people (242.9%). This represents an average annual population change of 4.19% per year over the period.
The largest changes in female age structure in this area between 1991 and 2021 were in the age groups:
- 10 to 14 (+299 females)
- 45 to 49 (+293 females)
- 40 to 44 (+287 females)
- 35 to 39 (+285 females)
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