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City of KnoxCommunity profile

Wantirna South

Five year age groups

In 2021, the largest age group in Wantirna South was 60 to 64 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 331 people.

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.

Q:

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)20212016Change
Five year age groups (years)Number%City of Knox %Number%City of Knox %2016 to 2021
0 to 49594.65.39214.85.8+38
5 to 91,1545.65.99635.05.9+191
10 to 141,1565.65.81,0375.45.8+119
15 to 191,2125.95.91,3086.86.4-96
20 to 241,3046.36.11,4247.46.6-120
25 to 291,1275.46.01,3066.86.4-179
30 to 341,3076.36.71,1185.86.8+189
35 to 391,4006.87.21,1165.86.7+284
40 to 441,3596.66.81,1085.76.8+251
45 to 491,2656.16.71,2686.67.2-3
50 to 541,3256.46.81,3507.07.2-25
55 to 591,2966.36.71,4407.56.8-144
60 to 641,4226.96.21,3306.96.1+92
65 to 691,2816.25.41,0505.45.2+231
70 to 741,0625.14.67313.83.6+331
75 to 797463.63.25422.82.7+204
80 to 845702.82.45142.71.9+56
85 and over7563.72.27593.92.0-3
Total population20,701100.0100.019,285100.0100.0+1,416
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Wantirna South in 2021 compared to the 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, 15.8% of the population was aged between 0 and 15, and 21.3% were aged 65 years and over, compared with 17.0% and 17.9% respectively for the City of Knox.

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

  • A larger percentage of persons aged 85 and over (3.7% compared to 2.2%)
  • A larger percentage of persons aged 65 to 69 (6.2% compared to 5.4%)
  • A larger percentage of persons aged 60 to 64 (6.9% compared to 6.2%)
  • A smaller percentage of persons aged 0 to 4 (4.6% compared to 5.3%)

Emerging groups

From 2016 to 2021, Wantirna South's population increased by 1,416 people (7.3%). This represents an average annual population change of 1.43% per year over the period.

The largest changes in age structure in this area between 2016 and 2021 were in the age groups:

  • 70 to 74 (+331 persons)
  • 35 to 39 (+284 persons)
  • 40 to 44 (+251 persons)
  • 65 to 69 (+231 persons)

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