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City of PerthCommunity profile

City of Perth

Five year age groups

In 2021, the largest age group in the City of Perth was 25 to 29 year olds. The group that changed the most since 2006 was 30 to 34 year olds, increasing by 2,816 people.

The Age Structure of the City of Perth 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 Perth'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 Perth'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 Perth - Total persons (Usual residence)20212006Change
Five year age groups (years)Number%Greater Perth %Number%Greater Perth %2006 to 2021
0 to 49333.36.13472.56.1+586
5 to 96262.26.41821.36.4+444
10 to 144381.56.42161.56.9+222
15 to 191,2414.45.81,0817.77.3+159
20 to 243,62812.76.32,73519.47.3+893
25 to 294,37415.46.81,83213.06.5+2,541
30 to 344,16814.67.61,3529.67.0+2,816
35 to 393,01010.67.79726.97.5+2,038
40 to 441,8076.36.88345.97.5+973
45 to 491,3314.76.58496.07.4+481
50 to 541,3514.76.48546.16.8+496
55 to 591,3134.65.98996.46.3+414
60 to 641,1704.15.46454.64.6+525
65 to 691,0373.64.84813.43.6+556
70 to 748633.04.22892.12.9+574
75 to 795541.92.92251.62.5+328
80 to 843491.22.01901.31.8+159
85 and over2680.91.91160.81.5+152
Total population28,461100.0100.014,105100.0100.0+14,356
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 the City of Perth in 2021 compared to Greater Perth shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).

Overall, 7.0% of the population was aged between 0 and 15, and 10.8% were aged 65 years and over, compared with 19.0% and 15.8% respectively for Greater Perth.

The major differences between the age structure of the City of Perth and Greater Perth were:

  • A larger percentage of persons aged 25 to 29 (15.4% compared to 6.8%)
  • A larger percentage of persons aged 30 to 34 (14.6% compared to 7.6%)
  • A larger percentage of persons aged 20 to 24 (12.7% compared to 6.3%)
  • A smaller percentage of persons aged 10 to 14 (1.5% compared to 6.4%)

Emerging groups

From 2006 to 2021, City of Perth's population increased by 14,356 people (101.8%). This represents an average annual population change of 4.79% per year over the period.

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

  • 30 to 34 (+2,816 persons)
  • 25 to 29 (+2,541 persons)
  • 35 to 39 (+2,038 persons)
  • 40 to 44 (+973 persons)

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