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LEARN MORE ABOUT .idIn 2021, Blue Mountains City had lower proportion of children (under 18) and a higher proportion of persons aged 60 or older than Western Sydney (LGA).
The Age Structure of Blue Mountains City provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Blue Mountains 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 Blue Mountains 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 | |||||||
|---|---|---|---|---|---|---|---|
| Blue Mountains City - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Service age group (years) | Number | % | Western Sydney (LGA) % | Number | % | Western Sydney (LGA) % | 2016 to 2021 |
| Babies and pre-schoolers (0 to 4) | 3,889 | 5.0 | 6.8 | 4,232 | 5.5 | 7.2 | -343 |
| Primary schoolers (5 to 11) | 6,675 | 8.5 | 9.9 | 6,939 | 9.0 | 9.8 | -264 |
| Secondary schoolers (12 to 17) | 6,077 | 7.8 | 7.7 | 5,883 | 7.7 | 7.8 | +194 |
| Tertiary education and independence (18 to 24) | 5,084 | 6.5 | 9.1 | 5,418 | 7.0 | 9.6 | -334 |
| Young workforce (25 to 34) | 7,126 | 9.1 | 14.9 | 6,985 | 9.1 | 15.3 | +141 |
| Parents and homebuilders (35 to 49) | 15,069 | 19.3 | 21.4 | 15,233 | 19.8 | 20.7 | -164 |
| Older workers and pre-retirees (50 to 59) | 10,879 | 13.9 | 11.6 | 11,382 | 14.8 | 12.2 | -503 |
| Empty nesters and retirees (60 to 69) | 11,335 | 14.5 | 9.5 | 11,225 | 14.6 | 9.3 | +110 |
| Seniors (70 to 84) | 10,242 | 13.1 | 7.6 | 7,974 | 10.4 | 6.6 | +2,268 |
| Elderly aged (85 and over) | 1,763 | 2.3 | 1.5 | 1,630 | 2.1 | 1.5 | +133 |
| Total | 78,139 | 100.0 | 100.0 | 76,901 | 100.0 | 100.0 | +1,238 |
Dominant groups
Analysis of the service age groups of Blue Mountains City in 2021 compared to Western Sydney (LGA) 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, 21.3% of the population was aged between 0 and 17, and 29.9% were aged 60 years and over, compared with 24.4% and 18.6% respectively for Western Sydney (LGA).
The major differences between the age structure of Blue Mountains City and Western Sydney (LGA) were:
- A larger percentage of 'Seniors' (13.1% compared to 7.6%)
- A larger percentage of 'Empty nesters and retirees' (14.5% compared to 9.5%)
- A smaller percentage of 'Young workforce' (9.1% compared to 14.9%)
- A smaller percentage of 'Tertiary education & independence' (6.5% compared to 9.1%)
Emerging groups
From 2016 to 2021, Blue Mountains City's population increased by 1,238 people (1.6%). This represents an average annual population change of 0.32% per year over the period.
The largest changes in the age structure in this area between 2016 and 2021 were in the age groups:
- Seniors (70 to 84) (+2,268 people)
- Older workers and pre-retirees (50 to 59) (-503 people)
- Babies and pre-schoolers (0 to 4) (-343 people)
- Tertiary education and independence (18 to 24) (-334 people)
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