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City of BrimbankCommunity profile

Delahey

Five year age groups

In 2021, the largest age group in Delahey was 25 to 29 year olds. The group that changed the most since 2006 was 40 to 44 year olds, decreasing by 386 people.

The Age Structure of Delahey provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Delahey'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 Delahey'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
Delahey - Total persons (Enumerated)20212006Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %2006 to 2021
0 to 44455.55.76887.96.5-243
5 to 94295.36.07869.16.8-357
10 to 144235.25.77919.17.3-368
15 to 194795.95.76657.77.4-186
20 to 245817.26.96387.47.6-57
25 to 296397.98.15846.77.1+55
30 to 345657.07.67448.67.4-179
35 to 395416.77.27638.87.5-222
40 to 444165.26.48029.37.3-386
45 to 494866.06.36447.47.2-158
50 to 546157.66.35266.16.9+89
55 to 596087.56.13814.46.2+227
60 to 645827.25.82392.84.4+343
65 to 694916.15.01341.53.4+357
70 to 743434.24.3971.12.6+246
75 to 792162.73.0730.82.1+143
80 to 841131.42.0610.71.4+52
85 and over991.21.9480.60.9+51
Total population8,071100.0100.08,664100.0100.0-593
Source: Australian Bureau of Statistics, Census of Population and Housing 2006 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 Delahey in 2021 compared to the City of Brimbank shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).

Overall, 16.1% of the population was aged between 0 and 15, and 15.6% were aged 65 years and over, compared with 17.4% and 16.2% respectively for the City of Brimbank.

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

  • A larger percentage of persons aged 60 to 64 (7.2% compared to 5.8%)
  • A larger percentage of persons aged 55 to 59 (7.5% compared to 6.1%)
  • A larger percentage of persons aged 50 to 54 (7.6% compared to 6.3%)
  • A smaller percentage of persons aged 40 to 44 (5.2% compared to 6.4%)

Emerging groups

From 2006 to 2021, Delahey's population decreased by 593 people (6.8%). This represents an average annual population change of -0.47% per year over the period.

The largest changes in age structure in this area between 2006 and 2021 were in the age groups:

  • 40 to 44 (-386 persons)
  • 10 to 14 (-368 persons)
  • 5 to 9 (-357 persons)
  • 65 to 69 (+357 persons)

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