Onkaparinga Hills
Five year age groups
In 2021, the largest age group in Onkaparinga Hills was 15 to 19 year olds. The group that changed the most since 2001 was 60 to 64 year olds, increasing by 83 people.
The Age Structure of Onkaparinga Hills provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Onkaparinga Hills'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 Onkaparinga Hills'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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Onkaparinga Hills - Total females (Enumerated) | 2021 | 2001 | Change | |||||
| Five year age groups (years) | Number | % | Old Noarlunga % | Number | % | Old Noarlunga % | 2001 to 2021 | |
| 0 to 4 | 42 | 3.3 | 3.6 | 92 | 6.7 | 5.4 | -50 | 2001 |
| 5 to 9 | 69 | 5.4 | 4.5 | 106 | 7.7 | 7.3 | -38 | 2002 |
| 10 to 14 | 88 | 6.9 | 7.0 | 127 | 9.2 | 7.0 | -39 | 2003 |
| 15 to 19 | 113 | 8.9 | 6.1 | 129 | 9.4 | 7.0 | -16 | 2004 |
| 20 to 24 | 68 | 5.3 | 6.3 | 66 | 4.8 | 6.3 | +1 | 2005 |
| 25 to 29 | 61 | 4.8 | 7.3 | 58 | 4.2 | 5.4 | +3 | 2006 |
| 30 to 34 | 53 | 4.2 | 6.3 | 110 | 8.0 | 7.5 | -57 | 2007 |
| 35 to 39 | 73 | 5.7 | 5.1 | 151 | 11.0 | 6.6 | -78 | 2008 |
| 40 to 44 | 76 | 6.0 | 7.3 | 139 | 10.1 | 7.3 | -63 | 2009 |
| 45 to 49 | 86 | 6.8 | 7.4 | 119 | 8.6 | 10.4 | -33 | 2010 |
| 50 to 54 | 106 | 8.3 | 6.2 | 107 | 7.8 | 9.9 | -2 | 2011 |
| 55 to 59 | 111 | 8.7 | 6.9 | 76 | 5.6 | 3.7 | +34 | 2012 |
| 60 to 64 | 105 | 8.3 | 7.0 | 21 | 1.6 | 6.0 | +83 | 2013 |
| 65 to 69 | 75 | 5.9 | 6.6 | 25 | 1.8 | 4.3 | +50 | 2014 |
| 70 to 74 | 73 | 5.7 | 5.0 | 19 | 1.4 | 2.1 | +53 | 2015 |
| 75 to 79 | 45 | 3.5 | 3.7 | 12 | 0.9 | 1.0 | +32 | 2016 |
| 80 to 84 | 19 | 1.5 | 2.2 | 9 | 0.7 | 1.5 | +10 | 2017 |
| 85 and over | 9 | 0.7 | 1.4 | 6 | 0.4 | 1.4 | +3 | 2018 |
| Total population | 1,272 | 100.0 | 100.0 | 1,379 | 100.0 | 100.0 | -107 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 2001 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 female five year age groups of Onkaparinga Hills in 2021 compared to Old Noarlunga shows that there was a similar proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 15.6% of the female population was aged between 0 and 15, and 17.4% were aged 65 years and over, compared with 15.2% and 18.9% respectively for Old Noarlunga.
The major differences between the female age structure of Onkaparinga Hills and Old Noarlunga were:
- A larger percentage of females aged 15 to 19 (8.9% compared to 6.1%)
- A larger percentage of females aged 50 to 54 (8.3% compared to 6.2%)
- A smaller percentage of females aged 25 to 29 (4.8% compared to 7.3%)
- A smaller percentage of females aged 30 to 34 (4.2% compared to 6.3%)
Emerging groups
From 2001 to 2021, Onkaparinga Hills's female population decreased by 107 people (7.8%). This represents an average annual population change of -0.4% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 60 to 64 (+83 females)
- 35 to 39 (-78 females)
- 40 to 44 (-63 females)
- 30 to 34 (-57 females)