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LEARN MORE ABOUT .idIn 2021, the largest age group in Seaford Meadows was 30 to 34 year olds. The group that changed the most since 2011 was 30 to 34 year olds, increasing by 356 people.
The Age Structure of Seaford Meadows 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 Meadows'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 Meadows'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 Meadows - Total persons (Usual residence) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | City of Onkaparinga % | Number | % | City of Onkaparinga % | 2011 to 2021 |
| 0 to 4 | 451 | 8.8 | 5.4 | 174 | 10.5 | 6.6 | +277 |
| 5 to 9 | 435 | 8.5 | 6.2 | 153 | 9.3 | 6.3 | +282 |
| 10 to 14 | 367 | 7.2 | 6.2 | 140 | 8.5 | 6.7 | +227 |
| 15 to 19 | 312 | 6.1 | 5.8 | 109 | 6.6 | 6.8 | +203 |
| 20 to 24 | 332 | 6.5 | 5.6 | 141 | 8.5 | 6.2 | +191 |
| 25 to 29 | 481 | 9.4 | 6.0 | 203 | 12.3 | 6.4 | +278 |
| 30 to 34 | 521 | 10.2 | 6.3 | 165 | 10.0 | 6.2 | +356 |
| 35 to 39 | 502 | 9.8 | 6.7 | 153 | 9.3 | 6.6 | +349 |
| 40 to 44 | 356 | 7.0 | 6.1 | 104 | 6.3 | 7.1 | +252 |
| 45 to 49 | 318 | 6.2 | 6.4 | 81 | 4.9 | 7.1 | +237 |
| 50 to 54 | 245 | 4.8 | 6.6 | 50 | 3.0 | 7.0 | +195 |
| 55 to 59 | 182 | 3.6 | 6.5 | 62 | 3.8 | 6.6 | +120 |
| 60 to 64 | 170 | 3.3 | 6.3 | 43 | 2.6 | 6.5 | +127 |
| 65 to 69 | 145 | 2.8 | 5.9 | 32 | 1.9 | 4.6 | +113 |
| 70 to 74 | 144 | 2.8 | 5.7 | 19 | 1.2 | 3.2 | +125 |
| 75 to 79 | 74 | 1.4 | 3.8 | 15 | 0.9 | 2.4 | +59 |
| 80 to 84 | 38 | 0.7 | 2.3 | 7 | 0.4 | 2.0 | +31 |
| 85 and over | 32 | 0.6 | 2.2 | 0 | -- | 1.8 | +32 |
| Total population | 5,105 | 100.0 | 100.0 | 1,651 | 100.0 | 100.0 | +3,454 |
Dominant groups
Analysis of the five year age groups of Seaford Meadows 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, 24.5% of the population was aged between 0 and 15, and 8.5% were aged 65 years and over, compared with 17.7% and 19.9% respectively for the City of Onkaparinga.
The major differences between the age structure of Seaford Meadows and the City of Onkaparinga were:
- A larger percentage of persons aged 30 to 34 (10.2% compared to 6.3%)
- A larger percentage of persons aged 0 to 4 (8.8% compared to 5.4%)
- A larger percentage of persons aged 25 to 29 (9.4% compared to 6.0%)
- A larger percentage of persons aged 35 to 39 (9.8% compared to 6.7%)
Emerging groups
From 2011 to 2021, Seaford Meadows's population increased by 3,454 people (209.2%). This represents an average annual population change of 11.95% per year over the period.
The largest changes in age structure in this area between 2011 and 2021 were in the age groups:
- 30 to 34 (+356 persons)
- 35 to 39 (+349 persons)
- 5 to 9 (+282 persons)
- 25 to 29 (+278 persons)
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