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City of BrimbankCommunity profile

Keilor Downs

Five year age groups

In 2021, the largest age group in Keilor Downs was 60 to 64 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 189 people.

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.

Q:

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)20212016Change
Five year age groups (years)Number%St Albans District %Number%St Albans District %2016 to 2021
0 to 44834.95.75345.36.5-51
5 to 95315.45.85195.25.6+12
10 to 144935.05.35715.75.3-78
15 to 195385.55.45996.06.2-61
20 to 246136.27.37277.38.4-114
25 to 296516.68.97267.38.8-75
30 to 345966.08.16216.28.0-25
35 to 395986.17.05685.76.5+30
40 to 445605.75.95885.95.9-28
45 to 495705.85.76106.16.1-40
50 to 545805.95.96886.95.7-108
55 to 596716.85.77917.95.9-120
60 to 647878.05.57687.75.8+19
65 to 697487.65.46116.15.4+137
70 to 745986.14.84094.13.7+189
75 to 793823.93.23063.12.9+76
80 to 842512.52.42102.12.0+41
85 and over2102.12.11541.51.4+56
Total population9,860100.0100.010,000100.0100.0-140
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 Keilor Downs in 2021 compared to the St Albans District 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, 15.3% of the population was aged between 0 and 15, and 22.2% were aged 65 years and over, compared with 16.8% and 17.8% respectively for the St Albans District.

The major differences between the age structure of Keilor Downs and the St Albans District were:

  • A larger percentage of persons aged 60 to 64 (8.0% compared to 5.5%)
  • A larger percentage of persons aged 65 to 69 (7.6% compared to 5.4%)
  • A smaller percentage of persons aged 25 to 29 (6.6% compared to 8.9%)
  • A smaller percentage of persons aged 30 to 34 (6.0% compared to 8.1%)

Emerging groups

From 2016 to 2021, Keilor Downs's population decreased by 140 people (1.4%). This represents an average annual population change of -0.28% 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 (+189 persons)
  • 65 to 69 (+137 persons)
  • 55 to 59 (-120 persons)
  • 20 to 24 (-114 persons)

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