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City of BrimbankCommunity profile

Cairnlea

Five year age groups

In 2021, the largest age group in Cairnlea was 15 to 19 year olds. The group that changed the most since 2001 was 15 to 19 year olds, increasing by 382 people.

The Age Structure of Cairnlea provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Cairnlea'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 Cairnlea'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
Cairnlea - Total males (Enumerated)20212001Change
Five year age groups (years)Number%Albanvale %Number%Albanvale %2001 to 2021
0 to 42745.56.2147.37.0+260
5 to 93587.26.62010.58.0+338
10 to 143477.06.4157.98.5+332
15 to 193968.05.6147.39.0+382
20 to 243867.87.0199.98.9+367
25 to 293707.58.8126.37.6+358
30 to 342966.07.12412.66.8+272
35 to 393306.76.52010.56.4+310
40 to 443467.06.5105.27.4+336
45 to 493907.96.2168.48.9+374
50 to 543477.05.594.78.4+338
55 to 593166.46.263.15.1+310
60 to 642905.95.263.12.8+284
65 to 692104.35.963.12.1+204
70 to 741432.95.80--1.2+143
75 to 79831.72.90--0.9+83
80 to 84320.61.10--0.4+32
85 and over260.50.70--0.4+26
Total population4,940100.0100.0191100.0100.0+4,749
Source: Australian Bureau of Statistics, Census of Population and Housing 2001 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the male five year age groups of Cairnlea in 2021 compared to Albanvale shows that there was a higher proportion of males in the younger age groups (under 15) and a lower proportion of males in the older age groups (65+).

Overall, 19.8% of the male population was aged between 0 and 15, and 10.0% were aged 65 years and over, compared with 19.2% and 16.4% respectively for Albanvale.

The major differences between the male age structure of Cairnlea and Albanvale were:

  • A larger percentage of males aged 15 to 19 (8.0% compared to 5.6%)
  • A larger percentage of males aged 45 to 49 (7.9% compared to 6.2%)
  • A smaller percentage of males aged 70 to 74 (2.9% compared to 5.8%)
  • A smaller percentage of males aged 65 to 69 (4.3% compared to 5.9%)

Emerging groups

From 2001 to 2021, Cairnlea's male population increased by 4,749 people (2486.4%). This represents an average annual population change of 17.66% per year over the period.

The largest changes in male age structure in this area between 2001 and 2021 were in the age groups:

  • 15 to 19 (+382 males)
  • 45 to 49 (+374 males)
  • 20 to 24 (+367 males)
  • 25 to 29 (+358 males)

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