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LEARN MORE ABOUT .idIn 2021, the largest age group in Blacktown City was 35 to 39 year olds. The group that changed the most since 2006 was 35 to 39 year olds, increasing by 7,904 people.
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 also an indicator of Blacktown City'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 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 - Five year age groups | |||||||
|---|---|---|---|---|---|---|---|
| Blacktown City - Total females (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Greater Sydney % | Number | % | Greater Sydney % | 2006 to 2021 |
| 0 to 4 | 14,576 | 7.3 | 5.7 | 10,776 | 7.9 | 6.3 | +3,800 |
| 5 to 9 | 15,407 | 7.7 | 6.1 | 10,969 | 8.0 | 6.2 | +4,438 |
| 10 to 14 | 13,969 | 7.0 | 5.9 | 10,566 | 7.7 | 6.2 | +3,403 |
| 15 to 19 | 11,706 | 5.9 | 5.4 | 9,741 | 7.1 | 6.4 | +1,965 |
| 20 to 24 | 12,561 | 6.3 | 6.3 | 9,701 | 7.1 | 7.1 | +2,860 |
| 25 to 29 | 13,757 | 6.9 | 7.4 | 10,330 | 7.6 | 7.3 | +3,427 |
| 30 to 34 | 16,705 | 8.4 | 8.1 | 11,107 | 8.1 | 8.0 | +5,598 |
| 35 to 39 | 18,565 | 9.3 | 7.9 | 10,661 | 7.8 | 7.8 | +7,904 |
| 40 to 44 | 14,964 | 7.5 | 6.9 | 10,153 | 7.4 | 7.5 | +4,811 |
| 45 to 49 | 12,446 | 6.3 | 6.6 | 9,302 | 6.8 | 7.2 | +3,144 |
| 50 to 54 | 11,195 | 5.6 | 6.2 | 8,424 | 6.2 | 6.4 | +2,771 |
| 55 to 59 | 10,152 | 5.1 | 5.8 | 7,344 | 5.4 | 5.8 | +2,808 |
| 60 to 64 | 9,123 | 4.6 | 5.4 | 5,004 | 3.7 | 4.3 | +4,119 |
| 65 to 69 | 7,742 | 3.9 | 4.6 | 3,717 | 2.7 | 3.4 | +4,025 |
| 70 to 74 | 6,462 | 3.3 | 4.0 | 3,075 | 2.3 | 2.9 | +3,387 |
| 75 to 79 | 4,023 | 2.0 | 2.9 | 2,434 | 1.8 | 2.8 | +1,589 |
| 80 to 84 | 2,650 | 1.3 | 2.1 | 1,772 | 1.3 | 2.3 | +878 |
| 85 and over | 2,804 | 1.4 | 2.5 | 1,368 | 1.0 | 2.2 | +1,436 |
| Total population | 198,807 | 100.0 | 100.0 | 136,444 | 100.0 | 100.0 | +62,363 |
Dominant groups
Analysis of the female five year age groups of Blacktown City in 2021 compared to Greater Sydney shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 22.1% of the female population was aged between 0 and 15, and 11.9% were aged 65 years and over, compared with 17.7% and 16.2% respectively for Greater Sydney.
The major differences between the female age structure of Blacktown City and Greater Sydney were:
- A larger percentage of females aged 5 to 9 (7.7% compared to 6.1%)
- A larger percentage of females aged 0 to 4 (7.3% compared to 5.7%)
- A larger percentage of females aged 35 to 39 (9.3% compared to 7.9%)
- A larger percentage of females aged 10 to 14 (7.0% compared to 5.9%)
Emerging groups
From 2006 to 2021, Blacktown City's female population increased by 62,363 people (45.7%). This represents an average annual population change of 2.54% per year over the period.
The largest changes in female age structure in this area between 2006 and 2021 were in the age groups:
- 35 to 39 (+7,904 females)
- 30 to 34 (+5,598 females)
- 40 to 44 (+4,811 females)
- 5 to 9 (+4,438 females)
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