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City of CaseyCommunity profile

City of Casey

Five year age groups

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In 2021, the largest age group in the City of Casey was 35 to 39 year olds. The group that changed the most since 2016 was 35 to 39 year olds, increasing by 8,741 people.

The Age Structure of the City of Casey provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Casey'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 the City of Casey'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
City of Casey - Total persons (Usual residence)20212016Change
Five year age groups (years)Number%Greater Melbourne %Number%Greater Melbourne %2016 to 2021
0 to 427,8417.65.923,7727.96.4+4,069
5 to 928,8497.96.323,3057.86.2+5,544
10 to 1426,3617.26.020,7726.95.7+5,589
15 to 1923,1626.35.620,9507.06.0+2,212
20 to 2424,3096.76.720,6726.97.4+3,637
25 to 2926,3227.27.820,4596.88.1+5,863
30 to 3429,3608.08.223,9708.08.2+5,390
35 to 3931,6288.78.022,8877.67.3+8,741
40 to 4426,3747.26.921,9787.37.0+4,396
45 to 4923,4536.46.520,8727.06.9+2,581
50 to 5421,8036.06.318,8786.36.2+2,925
55 to 5919,4575.35.716,6865.65.7+2,771
60 to 6416,7484.65.113,4064.54.9+3,342
65 to 6913,1973.64.410,7933.64.4+2,404
70 to 7410,4632.93.97,4952.53.3+2,968
75 to 797,1101.92.85,3291.82.5+1,781
80 to 844,6051.32.03,6181.21.9+987
85 and over4,2071.22.03,4501.22.0+757
Total population365,249100.0100.0299,292100.0100.0+65,957
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 the City of Casey in 2021 compared to Greater Melbourne 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, 22.7% of the population was aged between 0 and 15, and 10.8% were aged 65 years and over, compared with 18.1% and 15.0% respectively for Greater Melbourne.

The major differences between the age structure of the City of Casey and Greater Melbourne were:

  • A larger percentage of persons aged 0 to 4 (7.6% compared to 5.9%)
  • A larger percentage of persons aged 5 to 9 (7.9% compared to 6.3%)
  • A larger percentage of persons aged 10 to 14 (7.2% compared to 6.0%)
  • A smaller percentage of persons aged 70 to 74 (2.9% compared to 3.9%)

Emerging groups

From 2016 to 2021, City of Casey's population increased by 65,957 people (22.0%). This represents an average annual population change of 4.06% per year over the period.

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

  • 35 to 39 (+8,741 persons)
  • 25 to 29 (+5,863 persons)
  • 10 to 14 (+5,589 persons)
  • 5 to 9 (+5,544 persons)

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