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AustraliaCommunity profile

Greater Capital Cities

Five year age groups

In 2021, the largest age group in Greater Capital Cities was 30 to 34 year olds. The group that changed the most since 2006 was 30 to 34 year olds, increasing by 356,056 people.

The Age Structure of Greater Capital Cities provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Greater Capital Cities'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 Greater Capital Cities'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
Greater Capital Cities - Total persons (Usual residence)20212006Change
Five year age groups (years)Number%Victoria %Number%Victoria %2006 to 2021
0 to 4980,2745.95.8801,8776.46.2+178,397
5 to 91,043,8906.36.2806,2616.46.4+237,629
10 to 141,023,4126.26.0832,6586.66.7+190,754
15 to 19949,1485.75.6860,1736.86.8+88,975
20 to 241,093,8146.66.3922,9707.36.9+170,844
25 to 291,234,8907.57.3881,0987.06.6+353,792
30 to 341,302,5047.97.7946,4487.57.2+356,056
35 to 391,288,6327.87.5967,8667.77.6+320,766
40 to 441,129,8906.86.6944,9527.57.4+184,938
45 to 491,083,3406.56.4908,3077.27.2+175,033
50 to 541,039,6796.36.3815,3846.56.5+224,295
55 to 59959,5275.85.9755,6006.06.1+203,927
60 to 64876,5945.35.6570,8384.54.7+305,756
65 to 69756,2064.64.9441,6693.53.8+314,537
70 to 74668,6724.04.4361,4352.93.2+307,237
75 to 79475,5252.93.1324,7352.62.8+150,790
80 to 84327,8732.02.2248,2602.02.1+79,613
85 and over332,1822.02.2201,6991.61.7+130,483
Total population16,566,052100.0100.012,592,230100.0100.0+3,973,822
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 Greater Capital Cities in 2021 compared to Victoria shows that there was a similar proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 18.4% of the population was aged between 0 and 15, and 15.5% were aged 65 years and over, compared with 18.0% and 16.8% respectively for Victoria.

There were no major differences between Greater Capital Cities and Victoria in 2021.

Emerging groups

From 2006 to 2021, Greater Capital Cities's population increased by 3,973,822 people (31.6%). This represents an average annual population change of 1.85% per year over the period.

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

  • 30 to 34 (+356,056 persons)
  • 25 to 29 (+353,792 persons)
  • 35 to 39 (+320,766 persons)
  • 65 to 69 (+314,537 persons)

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