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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 2006 was 35 to 39 year olds, increasing by 799 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.
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Age structure - Five year age groups | |||||||
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Blacktown - Total females (Usual residence) | 2021 | 2006 | Change | ||||
Five year age groups (years) | Number | % | Marayong % | Number | % | Marayong % | 2006 to 2021 |
0 to 4 | 1,780 | 7.1 | 6.5 | 1,459 | 7.4 | 6.2 | +320 |
5 to 9 | 1,572 | 6.2 | 6.9 | 1,382 | 7.0 | 6.2 | +189 |
10 to 14 | 1,411 | 5.6 | 5.6 | 1,261 | 6.4 | 6.9 | +149 |
15 to 19 | 1,245 | 4.9 | 4.9 | 1,264 | 6.4 | 6.8 | -19 |
20 to 24 | 1,869 | 7.4 | 6.5 | 1,495 | 7.6 | 7.2 | +373 |
25 to 29 | 2,319 | 9.2 | 6.5 | 1,633 | 8.3 | 7.0 | +685 |
30 to 34 | 2,330 | 9.2 | 8.8 | 1,589 | 8.0 | 7.0 | +741 |
35 to 39 | 2,166 | 8.6 | 7.4 | 1,366 | 6.9 | 6.2 | +799 |
40 to 44 | 1,686 | 6.7 | 6.3 | 1,375 | 7.0 | 6.3 | +310 |
45 to 49 | 1,455 | 5.8 | 5.3 | 1,288 | 6.5 | 6.8 | +166 |
50 to 54 | 1,360 | 5.4 | 5.2 | 1,117 | 5.7 | 8.3 | +242 |
55 to 59 | 1,298 | 5.2 | 5.4 | 1,021 | 5.2 | 6.3 | +276 |
60 to 64 | 1,152 | 4.6 | 5.2 | 755 | 3.8 | 3.6 | +397 |
65 to 69 | 980 | 3.9 | 5.5 | 759 | 3.8 | 4.1 | +220 |
70 to 74 | 819 | 3.3 | 4.8 | 664 | 3.4 | 3.7 | +155 |
75 to 79 | 636 | 2.5 | 2.8 | 584 | 3.0 | 3.2 | +52 |
80 to 84 | 523 | 2.1 | 2.5 | 429 | 2.2 | 2.2 | +94 |
85 and over | 599 | 2.4 | 3.7 | 299 | 1.5 | 2.0 | +300 |
Total population | 25,200 | 100.0 | 100.0 | 19,750 | 100.0 | 100.0 | +5,449 |
Analysis of the female five year age groups of Blacktown in 2021 compared to Marayong shows that there was a similar proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 18.9% of the female population was aged between 0 and 15, and 14.1% were aged 65 years and over, compared with 19.0% and 19.3% respectively for Marayong.
The major differences between the female age structure of Blacktown and Marayong were:
From 2006 to 2021, Blacktown's female population increased by 5,450 people (27.6%). This represents an average annual population change of 1.64% per year over the period.
The largest changes in female age structure in this area between 2006 and 2021 were in the age groups:
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