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Shire of MundaringCommunity profile

Mount Helena

Five year age groups

In 2021, the largest age group in Mount Helena was 10 to 14 year olds. The group that changed the most since 1991 was 55 to 59 year olds, increasing by 165 people.

The Age Structure of Mount Helena provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Mount Helena'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 Mount Helena'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
Mount Helena - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%Shire of Mundaring %Number%Shire of Mundaring %1991 to 2021
0 to 41875.84.92048.88.0-17
5 to 92307.15.825711.19.3-27
10 to 142588.06.527311.89.7-15
15 to 192136.66.21847.98.4+29
20 to 241514.75.1954.15.9+56
25 to 291394.34.81305.65.6+9
30 to 342056.46.01908.27.6+15
35 to 392126.66.124210.49.0-30
40 to 442046.36.42249.79.6-20
45 to 491875.86.81345.87.0+53
50 to 542497.77.5944.15.0+155
55 to 592457.67.4803.44.0+165
60 to 642247.06.9833.63.6+141
65 to 691795.65.9462.02.6+133
70 to 741544.85.5431.92.0+111
75 to 79963.03.9220.91.5+74
80 to 84541.72.3110.50.9+43
85 and over300.91.990.40.4+21
Total population3,217100.0100.02,324100.0100.0+893
Source: Australian Bureau of Statistics, Census of Population and Housing 1991 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 Mount Helena in 2021 compared to the Shire of Mundaring shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 21.0% of the population was aged between 0 and 15, and 15.9% were aged 65 years and over, compared with 17.2% and 19.6% respectively for the Shire of Mundaring.

The major differences between the age structure of Mount Helena and the Shire of Mundaring were:

  • A larger percentage of persons aged 10 to 14 (8.0% compared to 6.5%)
  • A larger percentage of persons aged 5 to 9 (7.1% compared to 5.8%)
  • A smaller percentage of persons aged 85 and over (0.9% compared to 1.9%)
  • A smaller percentage of persons aged 45 to 49 (5.8% compared to 6.8%)

Emerging groups

From 1991 to 2021, Mount Helena's population increased by 893 people (38.4%). This represents an average annual population change of 1.09% per year over the period.

The largest changes in age structure in this area between 1991 and 2021 were in the age groups:

  • 55 to 59 (+165 persons)
  • 50 to 54 (+155 persons)
  • 60 to 64 (+141 persons)
  • 65 to 69 (+133 persons)

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