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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 2001 was 85 and over year olds, increasing by 132 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 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | O'Sullivan Beach - Lonsdale % | Number | % | O'Sullivan Beach - Lonsdale % | 2001 to 2021 |
| 0 to 4 | 112 | 4.8 | 4.4 | 103 | 5.8 | 6.8 | +8 |
| 5 to 9 | 133 | 5.7 | 5.1 | 96 | 5.4 | 6.2 | +36 |
| 10 to 14 | 124 | 5.3 | 5.2 | 118 | 6.7 | 5.5 | +6 |
| 15 to 19 | 117 | 5.0 | 4.9 | 144 | 8.1 | 6.9 | -27 |
| 20 to 24 | 94 | 4.1 | 4.4 | 121 | 6.8 | 4.7 | -27 |
| 25 to 29 | 119 | 5.1 | 7.2 | 103 | 5.8 | 6.4 | +15 |
| 30 to 34 | 141 | 6.1 | 6.5 | 131 | 7.4 | 7.0 | +9 |
| 35 to 39 | 154 | 6.6 | 6.4 | 140 | 7.9 | 6.2 | +13 |
| 40 to 44 | 139 | 6.0 | 5.7 | 143 | 8.1 | 6.9 | -4 |
| 45 to 49 | 129 | 5.6 | 5.0 | 155 | 8.7 | 7.4 | -27 |
| 50 to 54 | 126 | 5.4 | 6.7 | 154 | 8.7 | 11.5 | -28 |
| 55 to 59 | 140 | 6.0 | 5.5 | 80 | 4.5 | 5.4 | +60 |
| 60 to 64 | 143 | 6.2 | 7.5 | 47 | 2.7 | 5.8 | +96 |
| 65 to 69 | 150 | 6.5 | 6.8 | 58 | 3.3 | 3.3 | +92 |
| 70 to 74 | 135 | 5.8 | 9.7 | 79 | 4.5 | 3.3 | +55 |
| 75 to 79 | 112 | 4.8 | 3.9 | 59 | 3.3 | 4.0 | +53 |
| 80 to 84 | 106 | 4.6 | 3.2 | 28 | 1.6 | 1.6 | +78 |
| 85 and over | 145 | 6.3 | 1.8 | 12 | 0.7 | 1.0 | +132 |
| Total population | 2,319 | 100.0 | 100.0 | 1,778 | 100.0 | 100.0 | +540 |
Dominant groups
Analysis of the female five year age groups of Seaford in 2021 compared to O'Sullivan Beach - Lonsdale shows that there was a higher proportion of females in the younger age groups (under 15) as well as 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 14.8% and 25.3% respectively for O'Sullivan Beach - Lonsdale.
The major differences between the female age structure of Seaford and O'Sullivan Beach - Lonsdale were:
- A larger percentage of females aged 85 and over (6.3% compared to 1.8%)
- A smaller percentage of females aged 70 to 74 (5.8% compared to 9.7%)
- A smaller percentage of females aged 25 to 29 (5.1% compared to 7.2%)
- A smaller percentage of females aged 60 to 64 (6.2% compared to 7.5%)
Emerging groups
From 2001 to 2021, Seaford's female population increased by 541 people (30.4%). This represents an average annual population change of 1.34% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 85 and over (+132 females)
- 60 to 64 (+96 females)
- 65 to 69 (+92 females)
- 80 to 84 (+78 females)
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