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LEARN MORE ABOUT .idIn 2021, the largest age group in Blacktown was 30 to 34 year olds. The group that changed the most since 2001 was 30 to 34 year olds, increasing by 899 people.
The Age Structure of Blacktown 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'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'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 - Total females (Enumerated) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Kellyville Ridge % | Number | % | Kellyville Ridge % | 2001 to 2021 |
| 0 to 4 | 1,793 | 7.1 | 6.3 | 1,433 | 7.5 | 10.6 | +360 |
| 5 to 9 | 1,572 | 6.2 | 9.6 | 1,302 | 6.8 | 7.4 | +269 |
| 10 to 14 | 1,402 | 5.5 | 9.4 | 1,196 | 6.2 | 4.2 | +206 |
| 15 to 19 | 1,234 | 4.9 | 7.9 | 1,325 | 6.9 | 6.6 | -92 |
| 20 to 24 | 1,866 | 7.4 | 5.5 | 1,445 | 7.5 | 8.2 | +421 |
| 25 to 29 | 2,320 | 9.2 | 4.3 | 1,478 | 7.7 | 19.8 | +841 |
| 30 to 34 | 2,337 | 9.2 | 6.3 | 1,437 | 7.5 | 10.1 | +899 |
| 35 to 39 | 2,170 | 8.6 | 10.8 | 1,487 | 7.7 | 6.9 | +683 |
| 40 to 44 | 1,675 | 6.6 | 10.3 | 1,399 | 7.3 | 6.2 | +275 |
| 45 to 49 | 1,452 | 5.7 | 9.2 | 1,203 | 6.3 | 7.0 | +248 |
| 50 to 54 | 1,362 | 5.4 | 6.3 | 1,091 | 5.7 | 4.0 | +270 |
| 55 to 59 | 1,309 | 5.2 | 4.3 | 865 | 4.5 | 4.1 | +444 |
| 60 to 64 | 1,174 | 4.6 | 2.9 | 900 | 4.7 | 4.6 | +273 |
| 65 to 69 | 987 | 3.9 | 2.4 | 803 | 4.2 | 0.5 | +183 |
| 70 to 74 | 836 | 3.3 | 2.0 | 713 | 3.7 | -- | +122 |
| 75 to 79 | 653 | 2.6 | 1.4 | 545 | 2.8 | -- | +107 |
| 80 to 84 | 532 | 2.1 | 0.6 | 331 | 1.7 | -- | +200 |
| 85 and over | 633 | 2.5 | 0.4 | 248 | 1.3 | -- | +384 |
| Total population | 25,307 | 100.0 | 100.0 | 19,212 | 100.0 | 100.0 | +6,094 |
Dominant groups
Analysis of the female five year age groups of Blacktown in 2021 compared to Kellyville Ridge shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 18.8% of the female population was aged between 0 and 15, and 14.4% were aged 65 years and over, compared with 25.3% and 6.8% respectively for Kellyville Ridge.
The major differences between the female age structure of Blacktown and Kellyville Ridge were:
- A larger percentage of females aged 25 to 29 (9.2% compared to 4.3%)
- A smaller percentage of females aged 10 to 14 (5.5% compared to 9.4%)
- A smaller percentage of females aged 40 to 44 (6.6% compared to 10.3%)
- A smaller percentage of females aged 45 to 49 (5.7% compared to 9.2%)
Emerging groups
From 2001 to 2021, Blacktown's female population increased by 6,095 people (31.7%). This represents an average annual population change of 1.39% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 30 to 34 (+899 females)
- 25 to 29 (+841 females)
- 35 to 39 (+683 females)
- 55 to 59 (+444 females)
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