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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 2001 was 35 to 39 year olds, increasing by 96,746 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 females (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Greater Sydney % | Number | % | Greater Sydney % | 2001 to 2021 |
| 0 to 4 | 182,964 | 6.9 | 5.7 | 111,702 | 7.6 | 6.4 | +71,262 |
| 5 to 9 | 193,743 | 7.4 | 6.0 | 120,967 | 8.3 | 6.6 | +72,775 |
| 10 to 14 | 181,872 | 6.9 | 5.9 | 117,156 | 8.0 | 6.4 | +64,715 |
| 15 to 19 | 158,562 | 6.0 | 5.4 | 110,252 | 7.5 | 6.6 | +48,310 |
| 20 to 24 | 159,683 | 6.1 | 6.3 | 95,045 | 6.5 | 7.0 | +64,637 |
| 25 to 29 | 179,739 | 6.8 | 7.4 | 106,089 | 7.3 | 7.9 | +73,649 |
| 30 to 34 | 210,170 | 8.0 | 8.1 | 117,576 | 8.0 | 8.1 | +92,593 |
| 35 to 39 | 216,324 | 8.2 | 7.9 | 119,578 | 8.2 | 7.9 | +96,746 |
| 40 to 44 | 182,046 | 6.9 | 6.9 | 116,697 | 8.0 | 7.7 | +65,349 |
| 45 to 49 | 170,259 | 6.5 | 6.6 | 103,651 | 7.1 | 6.9 | +66,608 |
| 50 to 54 | 160,335 | 6.1 | 6.2 | 94,127 | 6.4 | 6.4 | +66,207 |
| 55 to 59 | 145,945 | 5.5 | 5.8 | 65,768 | 4.5 | 4.8 | +80,177 |
| 60 to 64 | 132,607 | 5.0 | 5.4 | 49,496 | 3.4 | 3.8 | +83,111 |
| 65 to 69 | 113,409 | 4.3 | 4.7 | 39,788 | 2.7 | 3.3 | +73,621 |
| 70 to 74 | 97,483 | 3.7 | 4.1 | 34,760 | 2.4 | 3.3 | +62,722 |
| 75 to 79 | 64,721 | 2.5 | 2.9 | 26,906 | 1.8 | 2.9 | +37,815 |
| 80 to 84 | 42,588 | 1.6 | 2.1 | 17,354 | 1.2 | 2.1 | +25,234 |
| 85 and over | 41,585 | 1.6 | 2.5 | 14,285 | 1.0 | 1.9 | +27,299 |
| Total population | 2,634,035 | 100.0 | 100.0 | 1,461,205 | 100.0 | 100.0 | +1,172,829 |
Dominant groups
Analysis of the female five year age groups of National Growth Areas Alliance (NGAA) 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, 21.2% of the female population was aged between 0 and 15, and 13.7% 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 National Growth Areas Alliance (NGAA) and Greater Sydney were:
- A larger percentage of females aged 5 to 9 (7.4% compared to 6.0%)
- A larger percentage of females aged 0 to 4 (6.9% compared to 5.7%)
- A larger percentage of females aged 10 to 14 (6.9% compared to 5.9%)
- A smaller percentage of females aged 85 and over (1.6% compared to 2.5%)
Emerging groups
From 2001 to 2021, National Growth Areas Alliance (NGAA)'s female population increased by 1,172,830 people (80.3%). This represents an average annual population change of 2.99% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 35 to 39 (+96,746 females)
- 30 to 34 (+92,593 females)
- 60 to 64 (+83,111 females)
- 55 to 59 (+80,177 females)
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