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LEARN MORE ABOUT .idIn 2021, the largest age group in Seaford Rise - Seaford Heights was 10 to 14 year olds. The group that changed the most since 1991 was 10 to 14 year olds, increasing by 521 people.
The Age Structure of Seaford Rise - Seaford Heights provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Seaford Rise - Seaford Heights'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 Seaford Rise - Seaford Heights'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 | |||||||
|---|---|---|---|---|---|---|---|
| Seaford Rise - Seaford Heights - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Onkaparinga % | Number | % | City of Onkaparinga % | 1991 to 2021 |
| 0 to 4 | 469 | 6.6 | 5.4 | 18 | 11.2 | 8.4 | +451 |
| 5 to 9 | 516 | 7.3 | 6.3 | 11 | 6.8 | 9.2 | +505 |
| 10 to 14 | 536 | 7.6 | 6.3 | 14 | 9.0 | 8.9 | +521 |
| 15 to 19 | 448 | 6.3 | 5.9 | 14 | 9.0 | 8.2 | +433 |
| 20 to 24 | 405 | 5.7 | 5.6 | 13 | 8.5 | 6.7 | +391 |
| 25 to 29 | 489 | 6.9 | 5.9 | 2 | 1.7 | 7.6 | +486 |
| 30 to 34 | 457 | 6.5 | 6.3 | 14 | 9.0 | 9.0 | +443 |
| 35 to 39 | 517 | 7.3 | 6.7 | 19 | 11.8 | 9.3 | +498 |
| 40 to 44 | 483 | 6.8 | 6.2 | 13 | 8.6 | 9.3 | +469 |
| 45 to 49 | 450 | 6.4 | 6.4 | 19 | 12.3 | 5.9 | +430 |
| 50 to 54 | 499 | 7.1 | 6.6 | 5 | 3.5 | 4.1 | +493 |
| 55 to 59 | 443 | 6.3 | 6.4 | 0 | 0.1 | 3.1 | +443 |
| 60 to 64 | 326 | 4.6 | 6.3 | 5 | 3.4 | 3.0 | +321 |
| 65 to 69 | 320 | 4.5 | 5.8 | 0 | 0.0 | 2.7 | +320 |
| 70 to 74 | 275 | 3.9 | 5.6 | 2 | 1.7 | 2.1 | +272 |
| 75 to 79 | 222 | 3.1 | 3.8 | 5 | 3.4 | 1.5 | +217 |
| 80 to 84 | 117 | 1.7 | 2.3 | 0 | 0.0 | 0.7 | +117 |
| 85 and over | 97 | 1.4 | 2.2 | 0 | 0.0 | 0.3 | +97 |
| Total population | 7,069 | 100.0 | 100.0 | 161 | 100.0 | 100.0 | +6,907 |
Dominant groups
Analysis of the five year age groups of Seaford Rise - Seaford Heights in 2021 compared to the City of Onkaparinga shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 21.5% of the population was aged between 0 and 15, and 14.6% were aged 65 years and over, compared with 18.0% and 19.7% respectively for the City of Onkaparinga.
The major differences between the age structure of Seaford Rise - Seaford Heights and the City of Onkaparinga were:
- A larger percentage of persons aged 10 to 14 (7.6% compared to 6.3%)
- A smaller percentage of persons aged 70 to 74 (3.9% compared to 5.6%)
- A smaller percentage of persons aged 60 to 64 (4.6% compared to 6.3%)
- A smaller percentage of persons aged 65 to 69 (4.5% compared to 5.8%)
Emerging groups
From 1991 to 2021, Seaford Rise - Seaford Heights's population increased by 6,908 people (4290.7%). This represents an average annual population change of 13.44% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 10 to 14 (+521 persons)
- 5 to 9 (+505 persons)
- 35 to 39 (+498 persons)
- 50 to 54 (+493 persons)
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