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City of OnkaparingaCommunity profile

Aldinga - Port Willunga

Service age groups

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In 2021, Aldinga - Port Willunga had similar proportion of children (under 18) and a higher proportion of persons aged 60 or older than Australia.

The Age Structure of Aldinga - Port Willunga provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Aldinga - Port Willunga'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 Aldinga - Port Willunga'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
Aldinga - Port Willunga - Total persons (Usual residence)20212016Change
Service age group (years)Number%Australia %Number%Australia %2016 to 2021
Babies and pre-schoolers (0 to 4)1194.75.81175.36.3+2
Primary schoolers (5 to 11)2429.58.71858.48.9+57
Secondary schoolers (12 to 17)1837.27.21707.77.1+13
Tertiary education and independence (18 to 24)1817.18.51567.19.2+25
Young workforce (25 to 34)2268.914.32069.414.4+20
Parents and homebuilders (35 to 49)47218.520.246421.120.2+8
Older workers and pre-retirees (50 to 59)39715.612.432114.612.7+76
Empty nesters and retirees (60 to 69)39815.610.931314.210.6+85
Seniors (70 to 84)30011.810.024411.18.6+56
Elderly aged (85 and over)351.42.1251.12.1+10
Total2,553100.0100.02,201100.0100.0+352
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 Aldinga - Port Willunga in 2021 compared to Australia shows that there was a similar proportion of people in the younger age groups (0 to 17 years) and a higher proportion of people in the older age groups (60+ years).

Overall, 21.3% of the population was aged between 0 and 17, and 28.7% were aged 60 years and over, compared with 21.7% and 23.0% respectively for Australia.

The major differences between the age structure of Aldinga - Port Willunga and Australia were:

  • A larger percentage of 'Empty nesters and retirees' (15.6% compared to 10.9%)
  • A larger percentage of 'Older workers & pre-retirees' (15.6% compared to 12.4%)
  • A larger percentage of 'Seniors' (11.8% compared to 10.0%)
  • A smaller percentage of 'Young workforce' (8.9% compared to 14.3%)

Emerging groups

From 2016 to 2021, Aldinga - Port Willunga's population increased by 352 people (16.0%). This represents an average annual population change of 3.01% per year over the period.

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

  • Empty nesters and retirees (60 to 69) (+85 people)
  • Older workers and pre-retirees (50 to 59) (+76 people)
  • Primary schoolers (5 to 11) (+57 people)
  • Seniors (70 to 84) (+56 people)

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