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National Growth Areas AllianceCommunity profile

National Growth Areas Alliance (NGAA)

Service age groups

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In 2021, National Growth Areas Alliance (NGAA) had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Western Australia.

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 an indicator of National Growth Areas Alliance (NGAA)'s residential role and function and how it is likely to change in the future.

Service age groups divide the population into age categories that reflect typical life-stages. They indicate the level of demand for services that target people at different stages in life and how that demand is changing.

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 - Service age groups
National Growth Areas Alliance (NGAA) - Total persons (Usual residence)20212016Change
Service age group (years)Number%Western Australia %Number%Western Australia %2016 to 2021
Babies and pre-schoolers (0 to 4)376,8537.26.1340,8947.76.5+35,959
Primary schoolers (5 to 11)551,14410.69.1464,49910.49.1+86,645
Secondary schoolers (12 to 17)422,3048.17.4358,2508.17.2+64,054
Tertiary education and independence (18 to 24)455,6588.78.2415,0569.38.9+40,602
Young workforce (25 to 34)756,14114.514.0657,01214.815.3+99,129
Parents and homebuilders (35 to 49)1,126,38121.620.8940,74921.220.9+185,632
Older workers and pre-retirees (50 to 59)601,24811.512.6530,01711.912.6+71,231
Empty nesters and retirees (60 to 69)472,5919.110.6403,3809.110.1+69,211
Seniors (70 to 84)389,6177.59.3282,1136.37.6+107,504
Elderly aged (85 and over)67,8291.31.954,8151.21.7+13,014
Total5,219,766100.0100.04,446,785100.0100.0+772,981
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 service age groups of National Growth Areas Alliance (NGAA) in 2021 compared to Western Australia shows that there was a higher proportion of people in the younger age groups (0 to 17 years) and a lower proportion of people in the older age groups (60+ years).

Overall, 25.9% of the population was aged between 0 and 17, and 17.8% were aged 60 years and over, compared with 22.6% and 21.8% respectively for Western Australia.

The major differences between the age structure of National Growth Areas Alliance (NGAA) and Western Australia were:

  • A larger percentage of 'Primary schoolers' (10.6% compared to 9.1%)
  • A larger percentage of 'Babies and pre-schoolers' (7.2% compared to 6.1%)
  • A smaller percentage of 'Seniors' (7.5% compared to 9.3%)
  • A smaller percentage of 'Empty nesters and retirees' (9.1% compared to 10.6%)

Emerging groups

From 2016 to 2021, National Growth Areas Alliance (NGAA)'s population increased by 772,981 people (17.4%). This represents an average annual population change of 3.26% per year over the period.

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

  • Parents and homebuilders (35 to 49) (+185,632 people)
  • Seniors (70 to 84) (+107,504 people)
  • Young workforce (25 to 34) (+99,129 people)
  • Primary schoolers (5 to 11) (+86,645 people)

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