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LEARN MORE ABOUT .idIn 2021, the largest age group in National Growth Areas Alliance (NGAA) was 35 to 39 year olds. The group that changed the most since 2006 was 35 to 39 year olds, increasing by 84,652 people.
The Age Structure of National Growth Areas Alliance (NGAA) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of National Growth Areas Alliance (NGAA)'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 National Growth Areas Alliance (NGAA)'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 | |||||||
|---|---|---|---|---|---|---|---|
| National Growth Areas Alliance (NGAA) - Total males (Usual residence) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Blacktown City % | Number | % | Blacktown City % | 2006 to 2021 |
| 0 to 4 | 193,884 | 7.5 | 7.8 | 126,291 | 7.8 | 8.6 | +67,593 |
| 5 to 9 | 203,872 | 7.9 | 8.1 | 132,292 | 8.1 | 8.8 | +71,579 |
| 10 to 14 | 192,729 | 7.5 | 7.5 | 135,931 | 8.4 | 8.2 | +56,797 |
| 15 to 19 | 168,534 | 6.5 | 6.4 | 127,370 | 7.8 | 7.7 | +41,163 |
| 20 to 24 | 170,108 | 6.6 | 7.0 | 111,755 | 6.9 | 7.2 | +58,352 |
| 25 to 29 | 176,194 | 6.8 | 7.1 | 103,556 | 6.4 | 7.1 | +72,638 |
| 30 to 34 | 190,020 | 7.3 | 7.5 | 115,775 | 7.1 | 7.7 | +74,244 |
| 35 to 39 | 207,644 | 8.0 | 9.0 | 122,991 | 7.6 | 7.7 | +84,652 |
| 40 to 44 | 182,998 | 7.1 | 8.1 | 122,928 | 7.6 | 7.5 | +60,070 |
| 45 to 49 | 167,115 | 6.5 | 6.5 | 115,833 | 7.1 | 6.9 | +51,282 |
| 50 to 54 | 154,331 | 6.0 | 5.5 | 103,615 | 6.4 | 6.0 | +50,716 |
| 55 to 59 | 140,688 | 5.4 | 5.1 | 95,011 | 5.9 | 5.4 | +45,677 |
| 60 to 64 | 123,038 | 4.8 | 4.3 | 69,716 | 4.3 | 3.9 | +53,321 |
| 65 to 69 | 103,536 | 4.0 | 3.5 | 50,276 | 3.1 | 2.6 | +53,259 |
| 70 to 74 | 88,955 | 3.4 | 2.9 | 36,342 | 2.2 | 1.9 | +52,612 |
| 75 to 79 | 59,763 | 2.3 | 1.8 | 27,620 | 1.7 | 1.5 | +32,143 |
| 80 to 84 | 36,106 | 1.4 | 1.1 | 16,764 | 1.0 | 0.8 | +19,342 |
| 85 and over | 26,250 | 1.0 | 0.8 | 9,772 | 0.6 | 0.4 | +16,477 |
| Total population | 2,585,765 | 100.0 | 100.0 | 1,623,848 | 100.0 | 100.0 | +961,917 |
Dominant groups
Analysis of the male five year age groups of National Growth Areas Alliance (NGAA) in 2021 compared to Blacktown City shows that there was a lower proportion of males in the younger age groups (under 15) and a higher proportion of males in the older age groups (65+).
Overall, 22.8% of the male population was aged between 0 and 15, and 12.2% were aged 65 years and over, compared with 23.4% and 10.2% respectively for Blacktown City .
The major differences between the male age structure of National Growth Areas Alliance (NGAA) and Blacktown City were:
- A larger percentage of males aged 70 to 74 (3.4% compared to 2.9%)
- A smaller percentage of males aged 35 to 39 (8.0% compared to 9.0%)
- A smaller percentage of males aged 40 to 44 (7.1% compared to 8.1%)
Emerging groups
From 2006 to 2021, National Growth Areas Alliance (NGAA)'s male population increased by 961,917 people (59.2%). This represents an average annual population change of 3.15% per year over the period.
The largest changes in male age structure in this area between 2006 and 2021 were in the age groups:
- 35 to 39 (+84,652 males)
- 30 to 34 (+74,244 males)
- 25 to 29 (+72,638 males)
- 5 to 9 (+71,579 males)
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