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City of BrimbankCommunity profile

City of Brimbank

Five year age groups

In 2021, the largest age group in the City of Brimbank was 25 to 29 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 2,027 people.

The Age Structure of the City of Brimbank 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 Brimbank'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 Brimbank'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 Brimbank - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Greater Melbourne %Number%Greater Melbourne %2016 to 2021
0 to 410,9945.65.912,9526.76.4-1,958
5 to 911,7436.06.311,7526.06.2-9
10 to 1411,0265.76.011,1545.75.7-128
15 to 1911,1315.75.612,2546.36.0-1,123
20 to 2413,4066.96.715,1557.87.4-1,749
25 to 2915,7138.17.815,7818.18.1-68
30 to 3414,8447.68.215,5308.08.2-686
35 to 3914,0537.28.013,4706.97.3+583
40 to 4412,3676.46.912,8456.67.0-478
45 to 4912,2636.36.512,7246.56.9-461
50 to 5412,2966.36.312,1586.36.2+138
55 to 5911,8516.15.711,6966.05.7+155
60 to 6411,2595.85.110,4765.44.9+783
65 to 699,8785.14.49,1784.74.4+700
70 to 748,4294.33.96,4023.33.3+2,027
75 to 795,8033.02.84,6022.42.5+1,201
80 to 843,9142.02.03,2611.71.9+653
85 and over3,6641.92.02,9261.52.0+738
Total population194,634100.0100.0194,316100.0100.0+318
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 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 Brimbank in 2021 compared to Greater Melbourne 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, 17.3% of the population was aged between 0 and 15, and 16.3% were aged 65 years and over, compared with 18.1% and 15.0% respectively for Greater Melbourne.

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

  • A larger percentage of persons aged 65 to 69 (5.1% compared to 4.4%)
  • A larger percentage of persons aged 60 to 64 (5.8% compared to 5.1%)
  • A smaller percentage of persons aged 35 to 39 (7.2% compared to 8.0%)
  • A smaller percentage of persons aged 30 to 34 (7.6% compared to 8.2%)

Emerging groups

From 2016 to 2021, City of Brimbank's population increased by 318 people (0.2%). This represents an average annual population change of 0.03% per year over the period.

The largest changes in age structure in this area between 2016 and 2021 were in the age groups:

  • 70 to 74 (+2,027 persons)
  • 0 to 4 (-1,958 persons)
  • 20 to 24 (-1,749 persons)
  • 75 to 79 (+1,201 persons)

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