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City of BrimbankCommunity profile

2016 Census data has been released and we are busy processing it to update this website. View our latest releases here.

Keilor Downs

Five year age groups

This topic has been updated with 2016 Census data for all areas. What's this?

There were 153 people over the age of 85 living in Keilor Downs in 2016, with largest age group being 55 to 59 year olds.

The Age Structure of Keilor Downs provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Keilor Downs'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 Keilor Downs'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?'

Age structure - Five year age groups
Keilor Downs - Total persons (Usual residence)20162011Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2011 to 2016
0 to 45305.36.74874.76.6+43
5 to 95115.26.05815.66.2-70
10 to 145835.95.75855.76.3-2
15 to 195926.06.37867.67.0-194
20 to 247167.27.89028.77.9-186
25 to 297297.48.17437.28.4-14
30 to 346316.48.05485.37.5+83
35 to 395565.66.96456.27.2-89
40 to 445865.96.66436.27.1-57
45 to 495996.06.57617.46.7-162
50 to 546776.86.38748.56.5-197
55 to 597918.06.07827.66.0+9
60 to 647607.75.46926.75.3+68
65 to 696086.14.74634.53.8+145
70 to 743964.03.33483.42.9+48
75 to 792953.02.42282.22.1+67
80 to 841972.01.71471.41.5+50
85 and over1531.51.51061.01.2+47
Total population9,910100.0100.010,321100.0100.0-411
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Keilor Downs in 2016 compared to City of Brimbank 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, 16.4% of the population was aged between 0 and 15, and 16.6% were aged 65 years and over, compared with 18.5% and 13.6% respectively for City of Brimbank.

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

  • A larger percentage of persons aged 60 to 64 (7.7% compared to 5.4%)
  • A larger percentage of persons aged 55 to 59 (8.0% compared to 6.0%)
  • A larger percentage of persons aged 65 to 69 (6.1% compared to 4.7%)
  • A smaller percentage of persons aged 30 to 34 (6.4% compared to 8.0%)

Emerging groups

From 2011 to 2016, Keilor Downs's population decreased by 411 people (4.0%). This represents an average annual population change of -0.81% per year over the period.

The largest changes in age structure in this area between 2011 and 2016 were in the age groups:

  • 50 to 54 (-197 persons)
  • 15 to 19 (-194 persons)
  • 20 to 24 (-186 persons)
  • 45 to 49 (-162 persons)