Aldinga - Port Willunga
Service age groups
In 2021, Aldinga - Port Willunga had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Hills South District.
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.
Derived from the Census question:
'What is the person's date of birth or age?'
Total population
| Age structure - Service age groups | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Aldinga - Port Willunga - Total persons (Usual residence) | 2021 | 2016 | Change | ||||||
| Service age group (years) | Number | % | Hills South District % | Number | % | Hills South District % | 2016 to 2021 | ||
 Babies and pre-schoolers (0 to 4) | 119 | 4.7 | 4.1 | 117 | 5.3 | 4.7 | +2 | 1000 | 1000 |
| Primary schoolers (5 to 11) | 242 | 9.5 | 8.6 | 185 | 8.4 | 9.1 | +57 | 1001 | 1000 |
| Secondary schoolers (12 to 17) | 183 | 7.2 | 7.3 | 170 | 7.7 | 7.8 | +13 | 1002 | 1000 |
| Tertiary education and independence (18 to 24) | 181 | 7.1 | 6.7 | 156 | 7.1 | 6.8 | +25 | 1003 | 1000 |
| Young workforce (25 to 34) | 226 | 8.9 | 7.0 | 206 | 9.4 | 6.9 | +20 | 1004 | 1000 |
| Parents and homebuilders (35 to 49) | 472 | 18.5 | 17.8 | 464 | 21.1 | 20.5 | +8 | 1005 | 1000 |
| Older workers and pre-retirees (50 to 59) | 397 | 15.6 | 15.4 | 321 | 14.6 | 15.1 | +76 | 1006 | 1000 |
| Empty nesters and retirees (60 to 69) | 398 | 15.6 | 15.1 | 313 | 14.2 | 13.9 | +85 | 1007 | 1000 |
| Seniors (70 to 84) | 300 | 11.8 | 15.2 | 244 | 11.1 | 12.2 | +56 | 1008 | 1000 |
| Elderly aged (85 and over) | 35 | 1.4 | 2.8 | 25 | 1.1 | 3.0 | +10 | 1009 | 1000 |
| Total | 2,553 | 100.0 | 100.0 | 2,201 | 100.0 | 100.0 | +352 | ||
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2016 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Usual residence data)
Compiled and presented in profile.id by .id (informed decisions).
Compiled and presented in profile.id by .id (informed decisions).
Dominant groups
Analysis of the service age groups of Aldinga - Port Willunga in 2021 compared to Hills South District 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, 21.3% of the population was aged between 0 and 17, and 28.7% were aged 60 years and over, compared with 20.0% and 33.2% respectively for Hills South District.
The major differences between the age structure of Aldinga - Port Willunga and Hills South District were:
- A larger percentage of 'Young workforce' (8.9% compared to 7.0%)
- A larger percentage of 'Primary schoolers' (9.5% compared to 8.6%)
- A smaller percentage of 'Seniors' (11.8% compared to 15.2%)
- A smaller percentage of 'Frail aged' (1.4% compared to 2.8%)
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)