Five year age groups
There were 179 people over the age of 85 living in Ridgehaven in 2016, with largest age group being 25 to 29 year olds.
The Age Structure of Ridgehaven provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Ridgehaven'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.
Derived from the Census question:
'What is the person's date of birth or age?'
|Age structure - Five year age groups|
|Ridgehaven - Total persons (Usual residence)||2016||2011||Change|
|Five year age groups (years)||Number||%||City of Tea Tree Gully %||Number||%||City of Tea Tree Gully %||2011 to 2016|
|0 to 4||204||5.1||5.7||250||6.4||5.8||-46|
|5 to 9||223||5.5||6.0||199||5.1||5.9||+24|
|10 to 14||215||5.3||5.9||217||5.6||6.4||-2|
|15 to 19||193||4.8||6.3||180||4.6||6.9||+13|
|20 to 24||220||5.5||5.9||210||5.4||6.2||+10|
|25 to 29||290||7.2||5.7||263||6.8||6.1||+27|
|30 to 34||287||7.1||6.4||230||5.9||6.0||+57|
|35 to 39||222||5.5||6.4||252||6.5||6.7||-30|
|40 to 44||271||6.7||6.6||265||6.8||7.4||+6|
|45 to 49||255||6.3||7.1||225||5.8||7.5||+30|
|50 to 54||209||5.2||6.9||202||5.2||7.1||+7|
|55 to 59||193||4.8||6.6||231||6.0||6.8||-38|
|60 to 64||211||5.2||6.2||241||6.2||6.6||-30|
|65 to 69||252||6.2||6.1||206||5.3||5.0||+46|
|70 to 74||214||5.3||4.6||209||5.4||3.5||+5|
|75 to 79||232||5.8||3.2||157||4.0||2.6||+75|
|80 to 84||164||4.1||2.2||172||4.4||1.9||-8|
|85 and over||179||4.4||2.1||169||4.4||1.7||+10|
Please refer to specific data notes for more information
Analysis of the five year age groups of Ridgehaven in 2016 compared to City of Tea Tree Gully 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, 15.9% of the population was aged between 0 and 15, and 25.8% were aged 65 years and over, compared with 17.6% and 18.2% respectively for City of Tea Tree Gully.
The major differences between the age structure of Ridgehaven and City of Tea Tree Gully were:
- A larger percentage of persons aged 75 to 79 (5.8% compared to 3.2%)
- A larger percentage of persons aged 85 and over (4.4% compared to 2.1%)
- A larger percentage of persons aged 80 to 84 (4.1% compared to 2.2%)
- A smaller percentage of persons aged 55 to 59 (4.8% compared to 6.6%)
From 2011 to 2016, Ridgehaven's population increased by 156 people (4.0%). This represents an average annual population change of 0.79% per year over the period.
The largest changes in age structure in this area between 2011 and 2016 were in the age groups:
- 75 to 79 (+75 persons)
- 30 to 34 (+57 persons)