Willunga and Surrounds
Five year age groups
In 2021, the largest age group in Willunga and Surrounds was 50 to 54 year olds. The group that changed the most since 1991 was 60 to 64 year olds, increasing by 223 people.
The Age Structure of Willunga and Surrounds provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Willunga and Surrounds'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 Willunga and Surrounds'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 - Five year age groups | ||||||||
|---|---|---|---|---|---|---|---|---|
| Willunga and Surrounds - Total persons (Enumerated) | 2021 | 1991 | Change | |||||
| Five year age groups (years) | Number | % | Seaford Rise - Seaford Heights % | Number | % | Seaford Rise - Seaford Heights % | 1991 to 2021 | |
| 0 to 4 | 152 | 4.1 | 6.6 | 182 | 7.3 | 11.2 | -30 | 2001 |
| 5 to 9 | 242 | 6.5 | 7.3 | 235 | 9.4 | 6.8 | +7 | 2002 |
| 10 to 14 | 239 | 6.4 | 7.6 | 211 | 8.4 | 9.0 | +28 | 2003 |
| 15 to 19 | 219 | 5.9 | 6.3 | 170 | 6.8 | 9.0 | +48 | 2004 |
| 20 to 24 | 185 | 5.0 | 5.7 | 114 | 4.6 | 8.5 | +70 | 2005 |
| 25 to 29 | 127 | 3.4 | 6.9 | 131 | 5.2 | 1.7 | -4 | 2006 |
| 30 to 34 | 136 | 3.7 | 6.5 | 207 | 8.3 | 9.0 | -72 | 2007 |
| 35 to 39 | 169 | 4.5 | 7.3 | 236 | 9.4 | 11.8 | -68 | 2008 |
| 40 to 44 | 246 | 6.6 | 6.8 | 252 | 10.1 | 8.6 | -7 | 2009 |
| 45 to 49 | 259 | 7.0 | 6.4 | 184 | 7.4 | 12.3 | +74 | 2010 |
| 50 to 54 | 319 | 8.6 | 7.1 | 158 | 6.3 | 3.5 | +161 | 2011 |
| 55 to 59 | 280 | 7.5 | 6.3 | 105 | 4.2 | 0.1 | +174 | 2012 |
| 60 to 64 | 316 | 8.5 | 4.6 | 92 | 3.7 | 3.4 | +223 | 2013 |
| 65 to 69 | 286 | 7.7 | 4.5 | 90 | 3.6 | 0.0 | +195 | 2014 |
| 70 to 74 | 244 | 6.6 | 3.9 | 66 | 2.7 | 1.7 | +177 | 2015 |
| 75 to 79 | 149 | 4.0 | 3.1 | 39 | 1.6 | 3.4 | +110 | 2016 |
| 80 to 84 | 98 | 2.6 | 1.7 | 22 | 0.9 | 0.0 | +76 | 2017 |
| 85 and over | 56 | 1.5 | 1.4 | 9 | 0.4 | 0.0 | +46 | 2018 |
| Total population | 3,722 | 100.0 | 100.0 | 2,513 | 100.0 | 100.0 | +1,209 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 1991 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Enumerated 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 five year age groups of Willunga and Surrounds in 2021 compared to Seaford Rise - Seaford Heights shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 17.0% of the population was aged between 0 and 15, and 22.4% were aged 65 years and over, compared with 21.5% and 14.6% respectively for Seaford Rise - Seaford Heights.
The major differences between the age structure of Willunga and Surrounds and Seaford Rise - Seaford Heights were:
- A larger percentage of persons aged 60 to 64 (8.5% compared to 4.6%)
- A larger percentage of persons aged 65 to 69 (7.7% compared to 4.5%)
- A smaller percentage of persons aged 25 to 29 (3.4% compared to 6.9%)
- A smaller percentage of persons aged 30 to 34 (3.7% compared to 6.5%)
Emerging groups
From 1991 to 2021, Willunga and Surrounds's population increased by 1,209 people (48.1%). This represents an average annual population change of 1.32% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 60 to 64 (+223 persons)
- 65 to 69 (+195 persons)
- 70 to 74 (+177 persons)
- 55 to 59 (+174 persons)