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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 1996 was 40 to 44 year olds, increasing by 271 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 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | City of Onkaparinga % | Number | % | City of Onkaparinga % | 1996 to 2021 |
| 0 to 4 | 293 | 5.3 | 5.2 | 152 | 8.2 | 7.5 | +140 |
| 5 to 9 | 411 | 7.5 | 5.9 | 159 | 8.6 | 7.7 | +251 |
| 10 to 14 | 389 | 7.1 | 5.9 | 161 | 8.7 | 8.2 | +228 |
| 15 to 19 | 341 | 6.2 | 5.6 | 91 | 4.9 | 7.6 | +249 |
| 20 to 24 | 261 | 4.8 | 5.4 | 94 | 5.1 | 6.6 | +166 |
| 25 to 29 | 275 | 5.0 | 5.8 | 145 | 7.8 | 7.0 | +129 |
| 30 to 34 | 331 | 6.0 | 6.3 | 178 | 9.6 | 8.0 | +153 |
| 35 to 39 | 411 | 7.5 | 6.8 | 162 | 8.7 | 8.8 | +248 |
| 40 to 44 | 390 | 7.1 | 6.4 | 119 | 6.4 | 8.7 | +271 |
| 45 to 49 | 364 | 6.6 | 6.3 | 104 | 5.6 | 8.3 | +260 |
| 50 to 54 | 320 | 5.8 | 6.7 | 83 | 4.5 | 5.3 | +236 |
| 55 to 59 | 341 | 6.2 | 6.5 | 105 | 5.7 | 3.7 | +235 |
| 60 to 64 | 319 | 5.8 | 6.5 | 86 | 4.7 | 3.0 | +232 |
| 65 to 69 | 289 | 5.3 | 6.0 | 82 | 4.5 | 3.1 | +206 |
| 70 to 74 | 293 | 5.3 | 5.8 | 44 | 2.4 | 2.8 | +248 |
| 75 to 79 | 203 | 3.7 | 3.9 | 47 | 2.6 | 1.9 | +155 |
| 80 to 84 | 125 | 2.3 | 2.5 | 27 | 1.5 | 1.2 | +98 |
| 85 and over | 130 | 2.4 | 2.6 | 9 | 0.5 | 0.8 | +121 |
| Total population | 5,486 | 100.0 | 100.0 | 1,857 | 100.0 | 100.0 | +3,628 |
Dominant groups
Analysis of the female five year age groups of Aldinga Beach in 2021 compared to the City of Onkaparinga 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 17.0% and 20.8% respectively for the City of Onkaparinga.
The major differences between the female age structure of Aldinga Beach and the City of Onkaparinga were:
- A larger percentage of females aged 5 to 9 (7.5% compared to 5.9%)
- A larger percentage of females aged 10 to 14 (7.1% compared to 5.9%)
- A smaller percentage of females aged 50 to 54 (5.8% compared to 6.7%)
- A smaller percentage of females aged 25 to 29 (5.0% compared to 5.8%)
Emerging groups
From 1996 to 2021, Aldinga Beach's female population increased by 3,629 people (195.4%). This represents an average annual population change of 4.43% per year over the period.
The largest changes in female age structure in this area between 1996 and 2021 were in the age groups:
- 40 to 44 (+271 females)
- 45 to 49 (+260 females)
- 5 to 9 (+251 females)
- 15 to 19 (+249 females)
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