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City of BrimbankCommunity profile

Derrimut

Five year age groups

In 2021, the largest age group in Derrimut was 35 to 39 year olds. The group that changed the most since 2016 was 30 to 34 year olds, decreasing by 374 people.

The Age Structure of Derrimut provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Derrimut'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 Derrimut'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
Derrimut - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Sunshine West %Number%Sunshine West %2016 to 2021
0 to 47058.25.61,06412.96.5-359
5 to 992410.75.786010.45.8+64
10 to 148019.35.46027.35.4+199
15 to 195716.65.34465.45.8+125
20 to 244855.66.54335.27.7+52
25 to 295576.58.55606.88.7-3
30 to 346127.18.198611.98.1-374
35 to 3993710.97.696811.76.7-31
40 to 448599.96.37178.76.5+142
45 to 496447.56.24805.86.1+164
50 to 544715.56.03744.55.8+97
55 to 593444.05.62793.45.2+65
60 to 642923.45.01922.34.8+100
65 to 691872.24.51371.75.2+50
70 to 741181.44.8801.04.4+38
75 to 79740.93.9480.63.4+26
80 to 84380.42.8190.22.4+19
85 and over160.22.2210.31.6-5
Total population8,635100.0100.08,266100.0100.0+369
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 Derrimut in 2021 compared to Sunshine West 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, 28.1% of the population was aged between 0 and 15, and 5.0% were aged 65 years and over, compared with 16.7% and 18.2% respectively for Sunshine West.

The major differences between the age structure of Derrimut and Sunshine West were:

  • A larger percentage of persons aged 5 to 9 (10.7% compared to 5.7%)
  • A larger percentage of persons aged 10 to 14 (9.3% compared to 5.4%)
  • A larger percentage of persons aged 40 to 44 (9.9% compared to 6.3%)
  • A smaller percentage of persons aged 70 to 74 (1.4% compared to 4.8%)

Emerging groups

From 2016 to 2021, Derrimut's population increased by 369 people (4.5%). This represents an average annual population change of 0.88% per year over the period.

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

  • 30 to 34 (-374 persons)
  • 0 to 4 (-359 persons)
  • 10 to 14 (+199 persons)
  • 45 to 49 (+164 persons)

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