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Hobsons Bay CityCommunity profile

Altona North

Five year age groups

In 2021, the largest age group in Altona North was 35 to 39 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 199 people.

The Age Structure of Altona North provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Altona North'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 Altona North'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
Altona North - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Hobsons Bay City %Number%Hobsons Bay City %2016 to 2021
0 to 41,0247.96.39357.76.8+89
5 to 98946.96.47386.16.4+156
10 to 147065.55.85824.85.2+124
15 to 195514.34.96295.25.2-78
20 to 245984.65.06665.55.8-68
25 to 299337.26.28577.06.9+76
30 to 341,1118.67.41,0038.27.8+108
35 to 391,1198.68.19207.67.6+199
40 to 449567.47.58296.87.6+127
45 to 497886.17.17396.17.3+49
50 to 547135.57.05714.76.9+142
55 to 595444.26.35374.46.4+7
60 to 644963.85.85004.15.2-4
65 to 694933.84.84934.14.40
70 to 744663.64.15384.43.3-72
75 to 795063.92.85954.92.7-89
80 to 844933.82.15344.42.2-41
85 and over5614.32.34924.02.2+69
Total population12,952100.0100.012,158100.0100.0+794
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 Altona North in 2021 compared to Hobsons Bay City 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, 20.3% of the population was aged between 0 and 15, and 19.4% were aged 65 years and over, compared with 18.5% and 16.1% respectively for Hobsons Bay City.

The major differences between the age structure of Altona North and Hobsons Bay City were:

  • A larger percentage of persons aged 85 and over (4.3% compared to 2.3%)
  • A larger percentage of persons aged 80 to 84 (3.8% compared to 2.1%)
  • A smaller percentage of persons aged 55 to 59 (4.2% compared to 6.3%)
  • A smaller percentage of persons aged 60 to 64 (3.8% compared to 5.8%)

Emerging groups

From 2016 to 2021, Altona North's population increased by 794 people (6.5%). This represents an average annual population change of 1.27% per year over the period.

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

  • 35 to 39 (+199 persons)
  • 5 to 9 (+156 persons)
  • 50 to 54 (+142 persons)
  • 40 to 44 (+127 persons)

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