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City of JoondalupCommunity profile

South-West Ward

Five year age groups

In 2021, the largest age group in South-West Ward was 10 to 14 year olds. The group that changed the most since 1991 was 70 to 74 year olds, increasing by 1,245 people.

The Age Structure of South-West Ward provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of South-West Ward'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 South-West Ward'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
South-West Ward - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%Duncraig %Number%Duncraig %1991 to 2021
0 to 41,0324.45.61,1346.77.0-102
5 to 91,4276.07.41,4448.59.7-17
10 to 141,7787.59.11,77710.510.9+1
15 to 191,6997.26.71,74810.310.9-49
20 to 241,3305.64.21,0055.96.0+324
25 to 298353.53.17154.23.9+119
30 to 349424.04.31,1356.76.8-194
35 to 391,2395.36.91,6039.510.4-364
40 to 441,4516.27.31,99211.811.7-542
45 to 491,6777.17.61,4148.48.5+263
50 to 541,7537.46.88605.14.3+893
55 to 591,7627.55.25273.12.6+1,235
60 to 641,6577.05.64572.72.2+1,200
65 to 691,6046.86.14182.51.9+1,185
70 to 741,5656.65.73191.91.4+1,245
75 to 799364.04.02111.20.9+725
80 to 844612.02.31110.70.6+350
85 and over4431.92.0450.30.3+397
Total population23,591100.0100.016,923100.0100.0+6,668
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 South-West Ward in 2021 compared to Duncraig 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, 18.0% of the population was aged between 0 and 15, and 21.2% were aged 65 years and over, compared with 22.2% and 20.2% respectively for Duncraig.

The major differences between the age structure of South-West Ward and Duncraig were:

  • A larger percentage of persons aged 55 to 59 (7.5% compared to 5.2%)
  • A larger percentage of persons aged 20 to 24 (5.6% compared to 4.2%)
  • A smaller percentage of persons aged 35 to 39 (5.3% compared to 6.9%)
  • A smaller percentage of persons aged 10 to 14 (7.5% compared to 9.1%)

Emerging groups

From 1991 to 2021, South-West Ward's population increased by 6,668 people (39.4%). This represents an average annual population change of 1.11% per year over the period.

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

  • 70 to 74 (+1,245 persons)
  • 55 to 59 (+1,235 persons)
  • 60 to 64 (+1,200 persons)
  • 65 to 69 (+1,185 persons)

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