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City of BrimbankCommunity profile

Grasslands Ward

Five year age groups

In 2021, the largest age group in Grasslands Ward was 25 to 29 year olds. The group that changed the most since 1991 was 65 to 69 year olds, increasing by 2,114 people.

The Age Structure of Grasslands Ward provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Grasslands Ward'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 Grasslands Ward'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
Grasslands Ward - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%City of Brimbank %Number%City of Brimbank %1991 to 2021
0 to 43,4066.05.73,6598.68.0-254
5 to 93,8576.86.04,0309.48.3-174
10 to 143,4356.05.74,38910.39.0-955
15 to 193,3185.85.74,0289.49.1-711
20 to 243,9406.96.93,4238.08.7+516
25 to 294,7168.38.13,3207.88.0+1,395
30 to 344,4447.87.63,7028.78.2+741
35 to 394,3167.67.24,0419.58.2+274
40 to 443,7726.66.43,8379.08.3-65
45 to 493,5826.36.32,4915.86.1+1,091
50 to 543,4236.06.31,7814.24.8+1,642
55 to 593,1735.66.11,2973.03.8+1,875
60 to 643,0405.35.89872.33.2+2,052
65 to 692,9195.15.08051.92.7+2,114
70 to 742,5114.44.35031.21.6+2,008
75 to 791,5242.73.02770.61.0+1,247
80 to 849241.62.01290.30.5+795
85 and over6681.21.9540.10.3+614
Total population56,968100.0100.042,762100.0100.0+14,205
Source: Australian Bureau of Statistics, Census of Population and Housing 1991 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 Grasslands Ward in 2021 compared to the City of Brimbank 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, 18.8% of the population was aged between 0 and 15, and 15.0% 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 Grasslands Ward and the City of Brimbank were:

  • A larger percentage of persons aged 5 to 9 (6.8% compared to 6.0%)
  • A smaller percentage of persons aged 85 and over (1.2% compared to 1.9%)
  • A smaller percentage of persons aged 55 to 59 (5.6% compared to 6.1%)

Emerging groups

From 1991 to 2021, Grasslands Ward's population increased by 14,206 people (33.2%). This represents an average annual population change of 0.96% per year over the period.

The largest changes in age structure in this area between 1991 and 2021 were in the age groups:

  • 65 to 69 (+2,114 persons)
  • 60 to 64 (+2,052 persons)
  • 70 to 74 (+2,008 persons)
  • 55 to 59 (+1,875 persons)

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