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City of CockburnCommunity profile

City of Cockburn

Five year age groups

In 2021, the largest age group in the City of Cockburn was 35 to 39 year olds. The group that changed the most since 1996 was 35 to 39 year olds, increasing by 4,733 people.

The Age Structure of the City of Cockburn provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Cockburn'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 the City of Cockburn'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
City of Cockburn - Total persons (Enumerated)20211996Change
Five year age groups (years)Number%Aubin Grove %Number%Aubin Grove %1996 to 2021
0 to 47,8416.88.84,6638.25.6+3,178
5 to 97,7336.711.74,6798.36.9+3,054
10 to 147,3286.49.54,5558.08.4+2,773
15 to 196,4985.65.84,2627.58.4+2,236
20 to 247,3396.45.04,3007.66.3+3,039
25 to 297,9366.94.74,6578.27.4+3,279
30 to 349,3258.18.14,9678.89.9+4,358
35 to 399,5148.211.34,7818.49.1+4,733
40 to 448,3847.310.24,2987.68.9+4,086
45 to 497,8896.87.03,8586.88.1+4,031
50 to 547,3836.45.12,9295.29.1+4,454
55 to 596,6295.73.12,3584.25.3+4,271
60 to 645,8525.12.41,9753.52.0+3,877
65 to 695,0054.32.51,6743.02.3+3,331
70 to 744,2093.61.71,2232.2--+2,986
75 to 792,7222.41.07491.31.5+1,973
80 to 841,9681.70.94950.90.8+1,473
85 and over1,7961.61.32770.5--+1,519
Total population115,351100.0100.056,700100.0100.0+58,651
Source: Australian Bureau of Statistics, Census of Population and Housing 1996 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 the City of Cockburn in 2021 compared to Aubin Grove 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, 19.9% of the population was aged between 0 and 15, and 13.6% were aged 65 years and over, compared with 30.0% and 7.3% respectively for Aubin Grove.

The major differences between the age structure of the City of Cockburn and Aubin Grove were:

  • A smaller percentage of persons aged 5 to 9 (6.7% compared to 11.7%)
  • A smaller percentage of persons aged 10 to 14 (6.4% compared to 9.5%)
  • A smaller percentage of persons aged 35 to 39 (8.2% compared to 11.3%)
  • A smaller percentage of persons aged 40 to 44 (7.3% compared to 10.2%)

Emerging groups

From 1996 to 2021, City of Cockburn's population increased by 58,651 people (103.4%). This represents an average annual population change of 2.88% per year over the period.

The largest changes in age structure in this area between 1996 and 2021 were in the age groups:

  • 35 to 39 (+4,733 persons)
  • 50 to 54 (+4,454 persons)
  • 30 to 34 (+4,358 persons)
  • 55 to 59 (+4,271 persons)

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