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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 2016 was 35 to 39 year olds, increasing by 53,488 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.
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Age structure - Five year age groups | |||||||
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National Growth Areas Alliance (NGAA) - Total females (Enumerated) | 2021 | 2016 | Change | ||||
Five year age groups (years) | Number | % | Shire of Serpentine-Jarrahdale % | Number | % | Shire of Serpentine-Jarrahdale % | 2016 to 2021 |
0 to 4 | 182,827 | 7.0 | 8.7 | 165,316 | 7.4 | 8.6 | +17,511 |
5 to 9 | 193,581 | 7.4 | 8.4 | 164,601 | 7.4 | 7.7 | +28,980 |
10 to 14 | 181,722 | 6.9 | 7.4 | 147,515 | 6.6 | 7.3 | +34,207 |
15 to 19 | 158,376 | 6.0 | 6.3 | 144,161 | 6.5 | 6.5 | +14,215 |
20 to 24 | 158,606 | 6.1 | 5.3 | 145,148 | 6.5 | 7.2 | +13,458 |
25 to 29 | 178,851 | 6.8 | 7.3 | 159,612 | 7.2 | 8.4 | +19,239 |
30 to 34 | 209,389 | 8.0 | 8.8 | 176,483 | 7.9 | 8.3 | +32,906 |
35 to 39 | 215,699 | 8.2 | 8.2 | 162,211 | 7.3 | 7.1 | +53,488 |
40 to 44 | 181,456 | 6.9 | 6.4 | 159,047 | 7.1 | 7.1 | +22,409 |
45 to 49 | 169,427 | 6.5 | 6.2 | 152,644 | 6.8 | 7.0 | +16,783 |
50 to 54 | 159,175 | 6.1 | 6.3 | 140,137 | 6.3 | 6.5 | +19,038 |
55 to 59 | 144,501 | 5.5 | 5.6 | 127,332 | 5.7 | 5.5 | +17,169 |
60 to 64 | 130,903 | 5.0 | 4.7 | 108,912 | 4.9 | 4.3 | +21,991 |
65 to 69 | 111,653 | 4.3 | 3.7 | 95,098 | 4.3 | 3.5 | +16,555 |
70 to 74 | 96,208 | 3.7 | 2.9 | 66,145 | 3.0 | 2.0 | +30,063 |
75 to 79 | 64,148 | 2.4 | 1.7 | 47,287 | 2.1 | 1.6 | +16,861 |
80 to 84 | 42,446 | 1.6 | 1.1 | 32,991 | 1.5 | 0.8 | +9,455 |
85 and over | 41,610 | 1.6 | 0.9 | 34,254 | 1.5 | 0.8 | +7,356 |
Total population | 2,620,578 | 100.0 | 100.0 | 2,228,894 | 100.0 | 100.0 | +391,684 |
Analysis of the female five year age groups of National Growth Areas Alliance (NGAA) in 2021 compared to the Shire of Serpentine-Jarrahdale 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, 21.3% of the female population was aged between 0 and 15, and 13.6% were aged 65 years and over, compared with 24.5% and 10.3% respectively for the Shire of Serpentine-Jarrahdale .
The major differences between the female age structure of National Growth Areas Alliance (NGAA) and the Shire of Serpentine-Jarrahdale were:
From 2016 to 2021, National Growth Areas Alliance (NGAA)'s female population increased by 391,684 people (17.6%). This represents an average annual population change of 3.29% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
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