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LEARN MORE ABOUT .idIn 2021, the largest age group in The Hills Shire was 40 to 44 year olds. The group that changed the most since 1996 was 35 to 39 year olds, increasing by 8,255 people.
The Age Structure of The Hills 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 The Hills 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 The Hills 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 | |||||||
|---|---|---|---|---|---|---|---|
| The Hills Shire - Total persons (Enumerated) | 2021 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | Greater Sydney % | Number | % | Greater Sydney % | 1996 to 2021 |
| 0 to 4 | 11,063 | 5.8 | 6.0 | 5,647 | 6.0 | 7.0 | +5,415 |
| 5 to 9 | 14,705 | 7.7 | 6.3 | 7,292 | 7.8 | 6.8 | +7,413 |
| 10 to 14 | 14,800 | 7.7 | 6.2 | 8,185 | 8.7 | 6.8 | +6,615 |
| 15 to 19 | 13,055 | 6.8 | 5.6 | 8,595 | 9.2 | 6.9 | +4,459 |
| 20 to 24 | 11,375 | 5.9 | 6.5 | 7,514 | 8.0 | 7.9 | +3,860 |
| 25 to 29 | 8,836 | 4.6 | 7.5 | 5,114 | 5.5 | 8.2 | +3,721 |
| 30 to 34 | 10,497 | 5.5 | 8.0 | 5,312 | 5.7 | 8.3 | +5,184 |
| 35 to 39 | 15,207 | 7.9 | 7.9 | 6,952 | 7.4 | 8.1 | +8,255 |
| 40 to 44 | 15,573 | 8.1 | 7.0 | 8,027 | 8.6 | 7.4 | +7,546 |
| 45 to 49 | 14,377 | 7.5 | 6.6 | 9,220 | 9.8 | 7.1 | +5,157 |
| 50 to 54 | 12,649 | 6.6 | 6.2 | 7,508 | 8.0 | 5.6 | +5,140 |
| 55 to 59 | 11,071 | 5.8 | 5.8 | 4,651 | 5.0 | 4.4 | +6,420 |
| 60 to 64 | 9,837 | 5.1 | 5.3 | 2,943 | 3.1 | 3.7 | +6,894 |
| 65 to 69 | 8,936 | 4.7 | 4.5 | 2,353 | 2.5 | 3.6 | +6,582 |
| 70 to 74 | 7,860 | 4.1 | 3.9 | 1,820 | 1.9 | 3.2 | +6,039 |
| 75 to 79 | 5,499 | 2.9 | 2.8 | 1,175 | 1.3 | 2.3 | +4,323 |
| 80 to 84 | 3,267 | 1.7 | 2.0 | 824 | 0.9 | 1.6 | +2,442 |
| 85 and over | 2,874 | 1.5 | 2.0 | 520 | 0.6 | 1.1 | +2,354 |
| Total population | 191,481 | 100.0 | 100.0 | 93,661 | 100.0 | 100.0 | +97,820 |
Dominant groups
Analysis of the five year age groups of The Hills Shire in 2021 compared to Greater Sydney shows that there was a higher proportion of people in the younger age groups (under 15) and a similar proportion of people in the older age groups (65+).
Overall, 21.2% of the population was aged between 0 and 15, and 14.9% were aged 65 years and over, compared with 18.4% and 15.2% respectively for Greater Sydney.
The major differences between the age structure of The Hills Shire and Greater Sydney were:
- A larger percentage of persons aged 10 to 14 (7.7% compared to 6.2%)
- A larger percentage of persons aged 5 to 9 (7.7% compared to 6.3%)
- A smaller percentage of persons aged 25 to 29 (4.6% compared to 7.5%)
- A smaller percentage of persons aged 30 to 34 (5.5% compared to 8.0%)
Emerging groups
From 1996 to 2021, The Hills Shire's population increased by 97,820 people (104.4%). This represents an average annual population change of 2.9% per year over the period.
The largest changes in age structure in this area between 1996 and 2021 were in the age groups:
- 35 to 39 (+8,255 persons)
- 40 to 44 (+7,546 persons)
- 5 to 9 (+7,413 persons)
- 60 to 64 (+6,894 persons)
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