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National Growth Areas AllianceCommunity profile

National Growth Areas Alliance (NGAA)

Five year age groups

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In 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 47,926 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)20212016Change
Five year age groups (years)Number%Greater Sydney %Number%Greater Sydney %2016 to 2021
0 to 4193,8847.56.2174,9747.96.7+18,910
5 to 9203,8727.96.5174,0077.96.7+29,865
10 to 14192,7297.56.4156,0607.16.1+36,669
15 to 19168,5346.55.9153,2917.06.2+15,243
20 to 24170,1086.66.8151,0476.97.2+19,061
25 to 29176,1946.87.6151,8716.97.9+24,323
30 to 34190,0207.37.9166,8687.68.1+23,152
35 to 39207,6448.07.9159,7187.37.4+47,926
40 to 44182,9987.17.0155,8877.17.0+27,111
45 to 49167,1156.56.6147,9616.76.6+19,154
50 to 54154,3316.06.1137,7496.36.3+16,582
55 to 59140,6885.45.8121,8695.55.8+18,819
60 to 64123,0384.85.2104,3704.74.9+18,668
65 to 69103,5364.04.391,2534.14.3+12,283
70 to 7488,9553.43.864,5022.93.2+24,453
75 to 7959,7632.32.743,1842.02.3+16,579
80 to 8436,1061.41.826,2821.21.6+9,824
85 and over26,2501.01.620,5300.91.5+5,720
Total population2,585,765100.0100.02,201,423100.0100.0+384,342
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the male five year age groups of National Growth Areas Alliance (NGAA) in 2021 compared to Greater Sydney shows that there was a higher proportion of males in the younger age groups (under 15) and a lower 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 19.2% and 14.1% respectively for Greater Sydney.

The major differences between the male age structure of National Growth Areas Alliance (NGAA) and Greater Sydney were:

  • A larger percentage of males aged 5 to 9 (7.9% compared to 6.5%)
  • A larger percentage of males aged 0 to 4 (7.5% compared to 6.2%)
  • A larger percentage of males aged 10 to 14 (7.5% compared to 6.4%)
  • A smaller percentage of males aged 25 to 29 (6.8% compared to 7.6%)

Emerging groups

From 2016 to 2021, National Growth Areas Alliance (NGAA)'s male population increased by 384,342 people (17.5%). This represents an average annual population change of 3.27% per year over the period.

The largest changes in male age structure in this area between 2016 and 2021 were in the age groups:

  • 35 to 39 (+47,926 males)
  • 10 to 14 (+36,669 males)
  • 5 to 9 (+29,865 males)
  • 40 to 44 (+27,111 males)

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