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There were 27 people over the age of 85 living in Cairnlea in 2011, with largest age group being 35 to 39 year olds.

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.

Derived from the Census question:

'What is the person's date of birth (or age last birthday)?'

Total population

Age structure - Five year age groups
Cairnlea - Total persons (Usual residence)20112006Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2006 to 2011
0 to 47308.36.65348.66.5+197
5 to 97748.86.25088.26.8+267
10 to 146917.86.34998.07.2+192
15 to 196877.87.04777.77.4+211
20 to 246207.07.95488.87.6+72
25 to 296587.58.45669.17.1+92
30 to 347548.57.564510.47.3+109
35 to 398729.97.25609.07.5+312
40 to 447668.77.14697.57.3+297
45 to 496136.96.74577.37.2+156
50 to 545676.46.53896.26.9+179
55 to 594234.86.02323.76.2+192
60 to 643253.75.31191.94.5+207
65 to 691711.93.8761.23.4+95
70 to 74630.72.9590.92.7+5
75 to 79550.62.1380.62.1+18
80 to 84330.41.5430.71.4-10
85 and over270.31.2120.20.9+15

Source: Australian Bureau of Statistics, Census of Population and Housing 2006 and 2011. Compiled and presented by .id , the population experts.

Age structure - five year age groups, 2011
Age structure - five year age groups, 2011 85 and over, City of Brimbank: 1.2% 80 to 84, City of Brimbank: 1.5% 75 to 79, City of Brimbank: 2.1% 70 to 74, City of Brimbank: 2.9% 65 to 69, City of Brimbank: 3.8% 60 to 64, City of Brimbank: 5.3% 55 to 59, City of Brimbank: 6.0% 50 to 54, City of Brimbank: 6.5% 45 to 49, City of Brimbank: 6.7% 40 to 44, City of Brimbank: 7.1% 35 to 39, City of Brimbank: 7.2% 30 to 34, City of Brimbank: 7.5% 25 to 29, City of Brimbank: 8.4% 20 to 24, City of Brimbank: 7.9% 15 to 19, City of Brimbank: 7.0% 10 to 14, City of Brimbank: 6.3% 5 to 9, City of Brimbank: 6.2% 0 to 4, City of Brimbank: 6.6% 85 and over, Cairnlea: 0.3% 80 to 84, Cairnlea: 0.4% 75 to 79, Cairnlea: 0.6% 70 to 74, Cairnlea: 0.7% 65 to 69, Cairnlea: 1.9% 60 to 64, Cairnlea: 3.7% 55 to 59, Cairnlea: 4.8% 50 to 54, Cairnlea: 6.4% 45 to 49, Cairnlea: 6.9% 40 to 44, Cairnlea: 8.7% 35 to 39, Cairnlea: 9.9% 30 to 34, Cairnlea: 8.5% 25 to 29, Cairnlea: 7.5% 20 to 24, Cairnlea: 7.0% 15 to 19, Cairnlea: 7.8% 10 to 14, Cairnlea: 7.8% 5 to 9, Cairnlea: 8.8% 0 to 4, Cairnlea: 8.3%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.
Change in age structure - five year age groups, 2006 to 2011
Change in age structure - five year age groups, 2006 to 2011 85 and over, Cairnlea: +15 80 to 84, Cairnlea: -10 75 to 79, Cairnlea: +18 70 to 74, Cairnlea: +5 65 to 69, Cairnlea: +95 60 to 64, Cairnlea: +207 55 to 59, Cairnlea: +192 50 to 54, Cairnlea: +179 45 to 49, Cairnlea: +156 40 to 44, Cairnlea: +297 35 to 39, Cairnlea: +312 30 to 34, Cairnlea: +109 25 to 29, Cairnlea: +92 20 to 24, Cairnlea: +72 15 to 19, Cairnlea: +211 10 to 14, Cairnlea: +192 5 to 9, Cairnlea: +267 0 to 4, Cairnlea: +197
Source: Australian Bureau of Statistics, Census of Population and Housing, 2006 and 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the five year age groups of Cairnlea in 2011 compared to City of Brimbank shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 24.9% of the population was aged between 0 and 15, and 4.0% were aged 65 years and over, compared with 19.0% and 11.5% respectively for City of Brimbank.

The major differences between the age structure of Cairnlea and City of Brimbank were:

  • A larger percentage of persons aged 35 to 39 (9.9% compared to 7.2%)
  • A larger percentage of persons aged 5 to 9 (8.8% compared to 6.2%)
  • A smaller percentage of persons aged 70 to 74 (0.7% compared to 2.9%)
  • A smaller percentage of persons aged 65 to 69 (1.9% compared to 3.8%)

Emerging groups

From 2006 to 2011, Cairnlea's population increased by 2,602 people (41.8%). This represents an average annual population change of 7.23% per year over the period.

The largest changes in age structure in this area between 2006 and 2011 were in the age groups:

  • 35 to 39 (+312 persons)
  • 40 to 44 (+297 persons)
  • 5 to 9 (+267 persons)
  • 15 to 19 (+211 persons)