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City of KnoxCommunity profile

We’re continuing to update these pages with data from the 2016 Census. Read more about our updates.

Wantirna South

Five year age groups

This topic has been updated with 2016 Census data for all areas. What's this?

There were 727 people over the age of 85 living in Wantirna South in 2016, with largest age group being 55 to 59 year olds.

The Age Structure of Wantirna South provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Wantirna South'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 Wantirna South'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?'

Age structure - Five year age groups
Wantirna South - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%City of Knox %Number%City of Knox %2011 to 2016
0 to 49474.95.87394.26.0+208
5 to 99805.05.99325.26.0+48
10 to 141,0375.35.81,0756.16.5-38
15 to 191,3176.86.41,4488.17.3-131
20 to 241,4127.36.61,4848.36.9-71
25 to 291,2986.76.49485.36.2+350
30 to 341,1455.96.88354.76.3+310
35 to 391,1235.86.79115.16.9+212
40 to 441,1165.76.81,0966.27.5+21
45 to 491,2816.67.21,3037.37.6-21
50 to 541,3627.07.21,6179.17.5-255
55 to 591,4657.56.81,4218.06.7+44
60 to 641,3196.86.11,1086.25.9+211
65 to 691,0965.65.27544.24.1+341
70 to 747443.83.65052.83.0+239
75 to 795702.92.75212.92.2+49
80 to 844912.51.95082.91.7-18
85 and over7273.72.05633.21.7+164
Total population19,440100.0100.017,778100.0100.0+1,662
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Wantirna South in 2016 compared to City of Knox 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, 15.3% of the population was aged between 0 and 15, and 18.7% were aged 65 years and over, compared with 17.6% and 15.5% respectively for City of Knox.

The major differences between the age structure of Wantirna South and City of Knox were:

  • A larger percentage of persons aged 85 and over (3.7% compared to 2.0%)
  • A smaller percentage of persons aged 40 to 44 (5.7% compared to 6.8%)
  • A smaller percentage of persons aged 0 to 4 (4.9% compared to 5.8%)
  • A smaller percentage of persons aged 35 to 39 (5.8% compared to 6.7%)

Emerging groups

From 2011 to 2016, Wantirna South's population increased by 1,662 people (9.3%). This represents an average annual population change of 1.8% per year over the period.

The largest changes in age structure in this area between 2011 and 2016 were in the age groups:

  • 25 to 29 (+350 persons)
  • 65 to 69 (+341 persons)
  • 30 to 34 (+310 persons)
  • 50 to 54 (-255 persons)

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