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LEARN MORE ABOUT .idIn 2021, Rockbank had lower proportion of children (under 18) and a higher proportion of persons aged 60 or older than Thornhill Park.
The Age Structure of Rockbank provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Rockbank'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 Rockbank'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?'
Dominant groups
Analysis of the service age groups of Rockbank in 2021 compared to Thornhill Park shows that there was a lower proportion of people in the younger age groups (0 to 17 years) and a higher proportion of people in the older age groups (60+ years).
Overall, 24.9% of the population was aged between 0 and 17, and 10.9% were aged 60 years and over, compared with 28.9% and 5.0% respectively for Thornhill Park.
The major differences between the age structure of Rockbank and Thornhill Park were:
- A larger percentage of 'Empty nesters and retirees' (7.0% compared to 3.3%)
- A larger percentage of 'Older workers & pre-retirees' (8.9% compared to 5.8%)
- A smaller percentage of 'Young workforce' (25.2% compared to 30.3%)
- A smaller percentage of 'Babies and pre-schoolers' (10.2% compared to 13.9%)
Emerging groups
From 1991 to 2021, Rockbank's population increased by 1,204 people (76.5%). This represents an average annual population change of 1.91% per year over the period.
The largest changes in the age structure in this area between 1991 and 2021 were in the age groups:
- Young workforce (25 to 34) (+373 people)
- Parents and homebuilders (35 to 49) (+243 people)
- Older workers and pre-retirees (50 to 59) (+178 people)
- Babies and pre-schoolers (0 to 4) (+121 people)
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