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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 2006 was 65 to 69 year olds, increasing by 87 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)20212006Change
Five year age groups (years)Number%Outer Eastern region %Number%Outer Eastern region %2006 to 2021
0 to 41875.83.11676.05.3+19
5 to 92307.13.42328.46.2-3
10 to 142588.04.82739.97.0-15
15 to 192136.65.42328.47.2-19
20 to 241514.76.21043.86.7+47
25 to 291394.37.6913.37.3+48
30 to 342056.49.71666.08.4+38
35 to 392126.69.32117.68.90
40 to 442046.38.12529.19.3-48
45 to 491875.88.32388.68.4-52
50 to 542497.77.42017.36.7+47
55 to 592457.67.51977.16.8+47
60 to 642247.06.41445.24.5+79
65 to 691795.64.9913.32.5+87
70 to 741544.83.9762.72.1+78
75 to 79963.02.2441.61.4+51
80 to 84541.71.1250.90.8+29
85 and over300.90.9170.60.4+12
Total population3,217100.0100.02,771100.0100.0+445
Source: Australian Bureau of Statistics, Census of Population and Housing 2006 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 Outer Eastern region shows that there was a higher proportion of people in the younger age groups (under 15) as well as a higher 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 11.3% and 12.9% respectively for Outer Eastern region.

The major differences between the age structure of Mount Helena and Outer Eastern region were:

  • A larger percentage of persons aged 5 to 9 (7.1% compared to 3.4%)
  • A larger percentage of persons aged 10 to 14 (8.0% compared to 4.8%)
  • A smaller percentage of persons aged 30 to 34 (6.4% compared to 9.7%)
  • A smaller percentage of persons aged 25 to 29 (4.3% compared to 7.6%)

Emerging groups

From 2006 to 2021, Mount Helena's population increased by 446 people (16.1%). This represents an average annual population change of 1.0% per year over the period.

The largest changes in age structure in this area between 2006 and 2021 were in the age groups:

  • 65 to 69 (+87 persons)
  • 60 to 64 (+79 persons)
  • 70 to 74 (+78 persons)
  • 45 to 49 (-52 persons)

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