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AustraliaCommunity profile

Greater Sydney

Five year age groups

In 2021, the largest age group in Greater Sydney was 30 to 34 year olds. The group that changed the most since 2006 was 35 to 39 year olds, increasing by 48,879 people.

The Age Structure of Greater Sydney 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 Sydney'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 Sydney'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 Sydney - Total males (Enumerated)20212006Change
Five year age groups (years)Number%Victoria %Number%Victoria %2006 to 2021
0 to 4160,4606.26.1139,3126.96.5+21,148
5 to 9168,4026.56.5136,6716.86.7+31,731
10 to 14164,8026.46.3136,8966.87.1+27,906
15 to 19151,5425.95.9139,1196.97.2+12,423
20 to 24175,7726.86.6148,2437.37.1+27,529
25 to 29196,2577.67.5149,1427.46.7+47,115
30 to 34203,5497.97.6158,4567.97.2+45,093
35 to 39203,4187.97.5154,5397.77.5+48,879
40 to 44181,1187.06.7153,7157.67.4+27,403
45 to 49169,0916.66.4144,7447.27.2+24,347
50 to 54156,6576.16.2127,2946.36.6+29,363
55 to 59148,7645.85.8118,7815.96.1+29,983
60 to 64132,3885.15.490,6134.54.7+41,775
65 to 69110,3334.34.767,4323.33.7+42,901
70 to 7496,8023.84.153,6832.72.9+43,119
75 to 7969,0622.72.946,4742.32.5+22,588
80 to 8445,8651.82.031,8541.61.7+14,011
85 and over40,7841.61.721,0541.01.1+19,730
Total population2,575,066100.0100.02,018,022100.0100.0+557,044
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 male five year age groups of Greater Sydney in 2021 compared to Victoria shows that there was a similar proportion of males in the younger age groups (under 15) and a lower proportion of males in the older age groups (65+).

Overall, 19.2% of the male population was aged between 0 and 15, and 14.1% were aged 65 years and over, compared with 18.9% and 15.5% respectively for Victoria.

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

Emerging groups

From 2006 to 2021, Greater Sydney's male population increased by 557,044 people (27.6%). This represents an average annual population change of 1.64% per year over the period.

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

  • 35 to 39 (+48,879 males)
  • 25 to 29 (+47,115 males)
  • 30 to 34 (+45,093 males)
  • 70 to 74 (+43,119 males)

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