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LEARN MORE ABOUT .idIn 2021, the largest age group in Baulkham Hills was 40 to 44 year olds. The group that changed the most since 1996 was 40 to 44 year olds, increasing by 541 people.
The Age Structure of Baulkham Hills provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Baulkham Hills'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 Baulkham Hills'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 | |||||||
|---|---|---|---|---|---|---|---|
| Baulkham Hills - Total males (Enumerated) | 2021 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | East Ward % | Number | % | East Ward % | 1996 to 2021 |
| 0 to 4 | 1,082 | 6.0 | 5.4 | 954 | 6.4 | -- | +127 |
| 5 to 9 | 1,596 | 8.9 | 7.7 | 1,103 | 7.4 | -- | +492 |
| 10 to 14 | 1,399 | 7.8 | 7.7 | 1,220 | 8.2 | -- | +179 |
| 15 to 19 | 1,122 | 6.3 | 6.3 | 1,366 | 9.1 | -- | -244 |
| 20 to 24 | 989 | 5.5 | 6.1 | 1,374 | 9.2 | -- | -386 |
| 25 to 29 | 702 | 3.9 | 4.4 | 940 | 6.3 | -- | -239 |
| 30 to 34 | 919 | 5.1 | 5.2 | 862 | 5.8 | -- | +57 |
| 35 to 39 | 1,428 | 8.0 | 7.3 | 1,049 | 7.0 | -- | +378 |
| 40 to 44 | 1,616 | 9.0 | 7.9 | 1,074 | 7.2 | -- | +541 |
| 45 to 49 | 1,349 | 7.5 | 7.4 | 1,354 | 9.1 | -- | -6 |
| 50 to 54 | 1,123 | 6.3 | 6.3 | 1,324 | 8.9 | -- | -201 |
| 55 to 59 | 1,043 | 5.8 | 6.0 | 861 | 5.8 | -- | +181 |
| 60 to 64 | 831 | 4.6 | 5.5 | 508 | 3.4 | -- | +322 |
| 65 to 69 | 747 | 4.2 | 5.4 | 390 | 2.6 | -- | +357 |
| 70 to 74 | 755 | 4.2 | 4.7 | 252 | 1.7 | -- | +503 |
| 75 to 79 | 586 | 3.3 | 3.5 | 154 | 1.0 | -- | +431 |
| 80 to 84 | 376 | 2.1 | 1.8 | 107 | 0.7 | -- | +269 |
| 85 and over | 275 | 1.5 | 1.3 | 35 | 0.2 | -- | +240 |
| Total population | 17,938 | 100.0 | 100.0 | 14,936 | 100.0 | -- | +3,002 |
Dominant groups
Analysis of the male five year age groups of Baulkham Hills in 2021 compared to East Ward shows that there was a higher proportion of males in the younger age groups (under 15) and a lower proportion of males in the older age groups (65+).
Overall, 22.7% of the male population was aged between 0 and 15, and 15.3% were aged 65 years and over, compared with 20.8% and 16.7% respectively for East Ward.
The major differences between the male age structure of Baulkham Hills and East Ward were:
- A larger percentage of males aged 5 to 9 (8.9% compared to 7.7%)
- A larger percentage of males aged 40 to 44 (9.0% compared to 7.9%)
- A smaller percentage of males aged 65 to 69 (4.2% compared to 5.4%)
- A smaller percentage of males aged 60 to 64 (4.6% compared to 5.5%)
Emerging groups
From 1996 to 2021, Baulkham Hills's male population increased by 3,002 people (20.1%). This represents an average annual population change of 0.74% per year over the period.
The largest changes in male age structure in this area between 1996 and 2021 were in the age groups:
- 40 to 44 (+541 males)
- 70 to 74 (+503 males)
- 5 to 9 (+492 males)
- 75 to 79 (+431 males)
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