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LEARN MORE ABOUT .idIn 2021, the largest age group in Hornsby Shire was 40 to 44 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 1,432 people.
The Age Structure of Hornsby Shire provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Hornsby Shire'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 Hornsby Shire'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 | |||||||
|---|---|---|---|---|---|---|---|
| Hornsby Shire - Total persons (Enumerated) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Western Sydney (LGA) % | Number | % | Western Sydney (LGA) % | 2016 to 2021 |
| 0 to 4 | 7,593 | 5.0 | 6.8 | 8,292 | 5.9 | 7.3 | -699 |
| 5 to 9 | 10,275 | 6.8 | 7.1 | 9,916 | 7.0 | 7.2 | +359 |
| 10 to 14 | 10,906 | 7.2 | 6.8 | 9,581 | 6.8 | 6.5 | +1,325 |
| 15 to 19 | 9,640 | 6.4 | 6.1 | 9,682 | 6.9 | 6.6 | -42 |
| 20 to 24 | 8,267 | 5.5 | 6.7 | 8,311 | 5.9 | 7.0 | -44 |
| 25 to 29 | 6,696 | 4.4 | 7.2 | 6,636 | 4.7 | 7.4 | +60 |
| 30 to 34 | 7,702 | 5.1 | 7.7 | 7,948 | 5.6 | 7.9 | -246 |
| 35 to 39 | 10,588 | 7.0 | 8.0 | 9,566 | 6.8 | 7.3 | +1,022 |
| 40 to 44 | 11,587 | 7.7 | 7.0 | 10,859 | 7.7 | 6.9 | +728 |
| 45 to 49 | 11,325 | 7.5 | 6.4 | 10,668 | 7.6 | 6.5 | +657 |
| 50 to 54 | 10,536 | 7.0 | 5.9 | 10,125 | 7.2 | 6.3 | +411 |
| 55 to 59 | 9,750 | 6.5 | 5.6 | 9,223 | 6.5 | 5.9 | +527 |
| 60 to 64 | 8,813 | 5.8 | 5.2 | 7,674 | 5.4 | 5.0 | +1,139 |
| 65 to 69 | 7,511 | 5.0 | 4.3 | 6,800 | 4.8 | 4.2 | +711 |
| 70 to 74 | 6,547 | 4.3 | 3.6 | 5,115 | 3.6 | 3.0 | +1,432 |
| 75 to 79 | 5,091 | 3.4 | 2.4 | 4,019 | 2.8 | 2.1 | +1,072 |
| 80 to 84 | 3,751 | 2.5 | 1.6 | 2,923 | 2.1 | 1.5 | +828 |
| 85 and over | 4,287 | 2.8 | 1.5 | 3,872 | 2.7 | 1.5 | +415 |
| Total population | 150,865 | 100.0 | 100.0 | 141,210 | 100.0 | 100.0 | +9,655 |
Dominant groups
Analysis of the five year age groups of Hornsby Shire in 2021 compared to Western Sydney (LGA) 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, 19.1% of the population was aged between 0 and 15, and 18.0% were aged 65 years and over, compared with 20.7% and 13.4% respectively for Western Sydney (LGA).
The major differences between the age structure of Hornsby Shire and Western Sydney (LGA) were:
- A larger percentage of persons aged 85 and over (2.8% compared to 1.5%)
- A smaller percentage of persons aged 25 to 29 (4.4% compared to 7.2%)
- A smaller percentage of persons aged 30 to 34 (5.1% compared to 7.7%)
- A smaller percentage of persons aged 0 to 4 (5.0% compared to 6.8%)
Emerging groups
From 2016 to 2021, Hornsby Shire's population increased by 9,655 people (6.8%). This represents an average annual population change of 1.33% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
- 70 to 74 (+1,432 persons)
- 10 to 14 (+1,325 persons)
- 60 to 64 (+1,139 persons)
- 75 to 79 (+1,072 persons)
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