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LEARN MORE ABOUT .idIn 2021, Blacktown City had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Greater Perth.
The Age Structure of Blacktown City provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Blacktown City 's residential role and function and how it is likely to change in the future.
Service age groups divide the population into age categories that reflect typical life-stages. They indicate the level of demand for services that target people at different stages in life and how that demand is changing.
To get a more complete picture Blacktown City '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 - Service age groups | |||||||
|---|---|---|---|---|---|---|---|
| Blacktown City - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Service age group (years) | Number | % | Greater Perth % | Number | % | Greater Perth % | 2001 to 2021 |
| Babies and pre-schoolers (0 to 4) | 29,907 | 7.5 | 6.1 | 22,269 | 8.7 | 6.4 | +7,638 |
| Primary schoolers (5 to 11) | 43,414 | 10.9 | 9.0 | 30,701 | 12.0 | 9.8 | +12,713 |
| Secondary schoolers (12 to 17) | 31,678 | 8.0 | 7.4 | 23,766 | 9.3 | 9.0 | +7,912 |
| Tertiary education and independence (18 to 24) | 35,928 | 9.1 | 8.6 | 26,282 | 10.3 | 10.2 | +9,646 |
| Young workforce (25 to 34) | 59,261 | 14.9 | 14.4 | 41,177 | 16.1 | 14.4 | +18,084 |
| Parents and homebuilders (35 to 49) | 92,789 | 23.4 | 21.0 | 56,760 | 22.2 | 22.7 | +36,029 |
| Older workers and pre-retirees (50 to 59) | 42,319 | 10.7 | 12.4 | 27,039 | 10.6 | 11.9 | +15,280 |
| Empty nesters and retirees (60 to 69) | 32,504 | 8.2 | 10.2 | 15,075 | 5.9 | 7.4 | +17,429 |
| Seniors (70 to 84) | 24,674 | 6.2 | 9.1 | 11,459 | 4.5 | 6.9 | +13,215 |
| Elderly aged (85 and over) | 4,304 | 1.1 | 1.9 | 1,313 | 0.5 | 1.3 | +2,991 |
| Total | 396,778 | 100.0 | 100.0 | 255,841 | 100.0 | 100.0 | +140,937 |
Dominant groups
Analysis of the service age groups of Blacktown City in 2021 compared to Greater Perth shows that there was a higher proportion of people in the younger age groups (0 to 17 years) and a lower proportion of people in the older age groups (60+ years).
Overall, 26.5% of the population was aged between 0 and 17, and 15.5% were aged 60 years and over, compared with 22.5% and 21.2% respectively for Greater Perth.
The major differences between the age structure of Blacktown City and Greater Perth were:
- A larger percentage of 'Parents and homebuilders' (23.4% compared to 21.0%)
- A larger percentage of 'Primary schoolers' (10.9% compared to 9.0%)
- A smaller percentage of 'Seniors' (6.2% compared to 9.1%)
- A smaller percentage of 'Empty nesters and retirees' (8.2% compared to 10.2%)
Emerging groups
From 2001 to 2021, Blacktown City 's population increased by 140,937 people (55.1%). This represents an average annual population change of 2.22% per year over the period.
The largest changes in the age structure in this area between 2001 and 2021 were in the age groups:
- Parents and homebuilders (35 to 49) (+36,029 people)
- Young workforce (25 to 34) (+18,084 people)
- Empty nesters and retirees (60 to 69) (+17,429 people)
- Older workers and pre-retirees (50 to 59) (+15,280 people)
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