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LEARN MORE ABOUT .idIn 2021, the largest age group in Riverstone Precinct was 35 to 39 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 4,497 people.
The Age Structure of Riverstone Precinct provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Riverstone Precinct'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 Riverstone Precinct'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 | |||||||
|---|---|---|---|---|---|---|---|
| Riverstone Precinct - Total persons (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Blacktown City % | Number | % | Blacktown City % | 2016 to 2021 |
| 0 to 4 | 9,548 | 7.9 | 7.5 | 7,564 | 8.5 | 8.0 | +1,983 |
| 5 to 9 | 10,582 | 8.8 | 7.9 | 7,844 | 8.9 | 7.9 | +2,738 |
| 10 to 14 | 9,530 | 7.9 | 7.3 | 6,529 | 7.4 | 6.9 | +3,000 |
| 15 to 19 | 7,483 | 6.2 | 6.1 | 5,997 | 6.8 | 6.9 | +1,486 |
| 20 to 24 | 7,345 | 6.1 | 6.7 | 5,315 | 6.0 | 6.8 | +2,030 |
| 25 to 29 | 7,523 | 6.2 | 7.0 | 5,609 | 6.3 | 7.2 | +1,914 |
| 30 to 34 | 9,991 | 8.3 | 7.9 | 7,769 | 8.8 | 8.3 | +2,222 |
| 35 to 39 | 13,226 | 11.0 | 9.2 | 8,729 | 9.9 | 8.1 | +4,497 |
| 40 to 44 | 11,403 | 9.5 | 7.8 | 7,781 | 8.8 | 7.2 | +3,622 |
| 45 to 49 | 8,605 | 7.1 | 6.4 | 6,202 | 7.0 | 6.5 | +2,402 |
| 50 to 54 | 6,494 | 5.4 | 5.6 | 5,233 | 5.9 | 6.0 | +1,261 |
| 55 to 59 | 5,284 | 4.4 | 5.1 | 4,169 | 4.7 | 5.4 | +1,114 |
| 60 to 64 | 4,253 | 3.5 | 4.5 | 3,448 | 3.9 | 4.6 | +804 |
| 65 to 69 | 3,476 | 2.9 | 3.7 | 2,721 | 3.1 | 3.8 | +754 |
| 70 to 74 | 2,743 | 2.3 | 3.1 | 1,606 | 1.8 | 2.5 | +1,136 |
| 75 to 79 | 1,554 | 1.3 | 1.9 | 1,005 | 1.1 | 1.7 | +548 |
| 80 to 84 | 916 | 0.8 | 1.2 | 531 | 0.6 | 1.1 | +384 |
| 85 and over | 666 | 0.6 | 1.1 | 458 | 0.5 | 1.1 | +207 |
| Total population | 120,622 | 100.0 | 100.0 | 88,519 | 100.0 | 100.0 | +32,103 |
Dominant groups
Analysis of the five year age groups of Riverstone Precinct in 2021 compared to Blacktown City 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, 24.6% of the population was aged between 0 and 15, and 7.8% were aged 65 years and over, compared with 22.7% and 11.0% respectively for Blacktown City.
The major differences between the age structure of Riverstone Precinct and Blacktown City were:
- A larger percentage of persons aged 35 to 39 (11.0% compared to 9.2%)
- A larger percentage of persons aged 40 to 44 (9.5% compared to 7.8%)
- A larger percentage of persons aged 5 to 9 (8.8% compared to 7.9%)
- A smaller percentage of persons aged 60 to 64 (3.5% compared to 4.5%)
Emerging groups
From 2016 to 2021, Riverstone Precinct's population increased by 32,103 people (36.3%). This represents an average annual population change of 6.38% per year over the period.
The largest changes in age structure in this area between 2016 and 2021 were in the age groups:
- 35 to 39 (+4,497 persons)
- 40 to 44 (+3,622 persons)
- 10 to 14 (+3,000 persons)
- 5 to 9 (+2,738 persons)
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