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LEARN MORE ABOUT .idIn 2021, the largest age group in Chester Hill was 10 to 14 year olds. The group that changed the most since 2011 was 10 to 14 year olds, increasing by 265 people.
The Age Structure of Chester Hill provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Chester Hill'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 Chester Hill'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 | |||||||
|---|---|---|---|---|---|---|---|
| Chester Hill - Total persons (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | SSROC % | Number | % | SSROC % | 2011 to 2021 |
| 0 to 4 | 935 | 7.1 | 5.4 | 806 | 7.3 | 6.3 | +129 |
| 5 to 9 | 989 | 7.5 | 5.2 | 735 | 6.7 | 5.3 | +253 |
| 10 to 14 | 1,021 | 7.8 | 5.1 | 755 | 6.9 | 5.0 | +265 |
| 15 to 19 | 963 | 7.3 | 4.9 | 879 | 8.0 | 5.4 | +83 |
| 20 to 24 | 903 | 6.9 | 7.2 | 775 | 7.0 | 7.8 | +127 |
| 25 to 29 | 883 | 6.7 | 9.3 | 758 | 6.9 | 9.4 | +124 |
| 30 to 34 | 890 | 6.8 | 9.5 | 652 | 5.9 | 8.9 | +238 |
| 35 to 39 | 823 | 6.3 | 8.2 | 678 | 6.2 | 8.1 | +145 |
| 40 to 44 | 764 | 5.8 | 6.9 | 645 | 5.9 | 7.3 | +118 |
| 45 to 49 | 789 | 6.0 | 6.5 | 755 | 6.9 | 6.8 | +34 |
| 50 to 54 | 768 | 5.8 | 6.1 | 740 | 6.7 | 6.3 | +27 |
| 55 to 59 | 806 | 6.1 | 5.7 | 655 | 5.9 | 5.4 | +150 |
| 60 to 64 | 743 | 5.6 | 5.1 | 495 | 4.5 | 4.9 | +248 |
| 65 to 69 | 599 | 4.6 | 4.3 | 361 | 3.3 | 3.7 | +238 |
| 70 to 74 | 438 | 3.3 | 3.8 | 366 | 3.3 | 2.9 | +72 |
| 75 to 79 | 285 | 2.2 | 2.8 | 345 | 3.1 | 2.4 | -61 |
| 80 to 84 | 230 | 1.7 | 2.0 | 322 | 2.9 | 2.1 | -92 |
| 85 and over | 328 | 2.5 | 2.2 | 290 | 2.6 | 2.0 | +37 |
| Total population | 13,157 | 100.0 | 100.0 | 11,021 | 100.0 | 100.0 | +2,136 |
Dominant groups
Analysis of the five year age groups of Chester Hill in 2021 compared to SSROC shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 22.4% of the population was aged between 0 and 15, and 14.3% were aged 65 years and over, compared with 15.6% and 15.1% respectively for SSROC.
The major differences between the age structure of Chester Hill and SSROC were:
- A larger percentage of persons aged 10 to 14 (7.8% compared to 5.1%)
- A larger percentage of persons aged 15 to 19 (7.3% compared to 4.9%)
- A smaller percentage of persons aged 30 to 34 (6.8% compared to 9.5%)
- A smaller percentage of persons aged 25 to 29 (6.7% compared to 9.3%)
Emerging groups
From 2011 to 2021, Chester Hill's population increased by 2,136 people (19.4%). This represents an average annual population change of 1.79% per year over the period.
The largest changes in age structure in this area between 2011 and 2021 were in the age groups:
- 10 to 14 (+265 persons)
- 5 to 9 (+253 persons)
- 60 to 64 (+248 persons)
- 30 to 34 (+238 persons)
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