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LEARN MORE ABOUT .idIn 2021, the largest age group in Seaford was 35 to 39 year olds. The group that changed the most since 1991 was 85 and over year olds, increasing by 145 people.
The Age Structure of Seaford 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'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'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 - Total females (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | South Australia % | Number | % | South Australia % | 1991 to 2021 |
| 0 to 4 | 112 | 4.8 | 5.1 | 105 | 7.0 | 6.7 | +7 |
| 5 to 9 | 133 | 5.7 | 5.6 | 154 | 10.2 | 7.0 | -21 |
| 10 to 14 | 124 | 5.3 | 5.7 | 145 | 9.6 | 6.7 | -21 |
| 15 to 19 | 117 | 5.0 | 5.3 | 119 | 7.9 | 7.2 | -2 |
| 20 to 24 | 94 | 4.1 | 5.9 | 70 | 4.6 | 7.6 | +24 |
| 25 to 29 | 119 | 5.1 | 6.4 | 94 | 6.2 | 7.7 | +25 |
| 30 to 34 | 141 | 6.1 | 6.6 | 148 | 9.8 | 8.2 | -7 |
| 35 to 39 | 154 | 6.6 | 6.7 | 153 | 10.1 | 7.7 | +1 |
| 40 to 44 | 139 | 6.0 | 6.0 | 153 | 10.1 | 7.5 | -14 |
| 45 to 49 | 129 | 5.6 | 6.2 | 81 | 5.4 | 5.8 | +48 |
| 50 to 54 | 126 | 5.4 | 6.4 | 55 | 3.6 | 4.8 | +71 |
| 55 to 59 | 140 | 6.0 | 6.4 | 50 | 3.3 | 4.2 | +90 |
| 60 to 64 | 143 | 6.2 | 6.4 | 57 | 3.8 | 4.5 | +86 |
| 65 to 69 | 150 | 6.5 | 5.8 | 64 | 4.2 | 4.4 | +86 |
| 70 to 74 | 135 | 5.8 | 5.4 | 35 | 2.3 | 3.6 | +100 |
| 75 to 79 | 112 | 4.8 | 3.9 | 21 | 1.4 | 3.0 | +91 |
| 80 to 84 | 106 | 4.6 | 2.8 | 7 | 0.5 | 1.9 | +99 |
| 85 and over | 145 | 6.3 | 3.2 | 0 | -- | 1.5 | +145 |
| Total population | 2,319 | 100.0 | 100.0 | 1,511 | 100.0 | 100.0 | +807 |
Dominant groups
Analysis of the female five year age groups of Seaford in 2021 compared to South Australia shows that there was a similar proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 15.9% of the female population was aged between 0 and 15, and 27.9% were aged 65 years and over, compared with 16.4% and 21.1% respectively for South Australia.
The major differences between the female age structure of Seaford and South Australia were:
- A larger percentage of females aged 85 and over (6.3% compared to 3.2%)
- A larger percentage of females aged 80 to 84 (4.6% compared to 2.8%)
- A smaller percentage of females aged 20 to 24 (4.1% compared to 5.9%)
- A smaller percentage of females aged 25 to 29 (5.1% compared to 6.4%)
Emerging groups
From 1991 to 2021, Seaford's female population increased by 808 people (53.5%). This represents an average annual population change of 1.44% per year over the period.
The largest changes in female age structure in this area between 1991 and 2021 were in the age groups:
- 85 and over (+145 females)
- 70 to 74 (+100 females)
- 80 to 84 (+99 females)
- 75 to 79 (+91 females)
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