In 2021, the largest age group in Woollahra Municipal Council area was 30 to 34 year olds. The group that changed the most since 2016 was 30 to 34 year olds, decreasing by 536 people.
The Age Structure of Woollahra Municipal Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Woollahra Municipal Council area'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 Woollahra Municipal Council area's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.
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| Age structure - Five year age groups | |||||||
|---|---|---|---|---|---|---|---|
| Woollahra Municipal Council area - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | SSROC region % | Number | % | SSROC region % | 2016 to 2021 |
| 0 to 4 | 2,437 | 4.6 | 5.4 | 2,771 | 5.1 | 5.8 | -334 |
| 5 to 9 | 2,636 | 4.9 | 5.2 | 2,921 | 5.4 | 5.4 | -285 |
| 10 to 14 | 2,885 | 5.4 | 5.1 | 2,782 | 5.1 | 4.8 | +103 |
| 15 to 19 | 2,670 | 5.0 | 4.9 | 2,606 | 4.8 | 5.3 | +64 |
| 20 to 24 | 2,918 | 5.5 | 7.2 | 2,934 | 5.4 | 8.2 | -16 |
| 25 to 29 | 4,184 | 7.8 | 9.3 | 4,668 | 8.6 | 9.9 | -484 |
| 30 to 34 | 4,222 | 7.9 | 9.4 | 4,758 | 8.8 | 9.4 | -536 |
| 35 to 39 | 3,812 | 7.1 | 8.2 | 4,087 | 7.5 | 7.7 | -275 |
| 40 to 44 | 3,404 | 6.4 | 6.8 | 3,746 | 6.9 | 7.0 | -342 |
| 45 to 49 | 3,451 | 6.4 | 6.5 | 3,648 | 6.7 | 6.5 | -197 |
| 50 to 54 | 3,537 | 6.6 | 6.1 | 3,370 | 6.2 | 6.1 | +167 |
| 55 to 59 | 3,228 | 6.0 | 5.7 | 3,047 | 5.6 | 5.5 | +181 |
| 60 to 64 | 2,945 | 5.5 | 5.1 | 2,778 | 5.1 | 4.7 | +167 |
| 65 to 69 | 2,622 | 4.9 | 4.3 | 3,071 | 5.7 | 4.1 | -449 |
| 70 to 74 | 2,948 | 5.5 | 3.8 | 2,464 | 4.5 | 3.1 | +484 |
| 75 to 79 | 2,298 | 4.3 | 2.8 | 1,778 | 3.3 | 2.4 | +520 |
| 80 to 84 | 1,586 | 3.0 | 2.0 | 1,206 | 2.2 | 1.9 | +380 |
| 85 and over | 1,724 | 3.2 | 2.2 | 1,599 | 2.9 | 2.1 | +125 |
| Total population | 53,507 | 100.0 | 100.0 | 54,234 | 100.0 | 100.0 | -727 |
Analysis of the five year age groups of Woollahra Municipal Council area in 2021 compared to SSROC region shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 14.9% of the population was aged between 0 and 15, and 20.9% were aged 65 years and over, compared with 15.7% and 15.1% respectively for SSROC region.
The major differences between the age structure of Woollahra Municipal Council area and SSROC region were:
From 2016 to 2021, Woollahra Municipal Council area's population decreased by 727 people (1.3%). This represents an average annual population change of -0.27% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
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