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AustraliaCommunity profile

Australia

Service age groups

In 2021, Australia had higher proportion of female children (under 18) and a lower proportion of females aged 60 or older than South Australia.

The Age Structure of Australia provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Australia's residential role and function and how it is likely to change in the future.

Service age groups divide the population into age categories that reflect typical life-stages. They indicate the level of demand for services that target people at different stages in life and how that demand is changing.

To get a more complete picture Australia'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 - Service age groups
Australia - Total females (Enumerated)20212001Change
Service age group (years)Number%South Australia %Number%South Australia %2001 to 2021
Babies and pre-schoolers (0 to 4)711,2655.55.1605,8596.45.9+105,406
Primary schoolers (5 to 11)1,081,9278.47.9911,3599.69.1+170,568
Secondary schoolers (12 to 17)890,7326.96.7778,2398.28.0+112,493
Tertiary education and independence (18 to 24)1,051,4358.28.0869,5679.28.6+181,868
Young workforce (25 to 34)1,833,52614.213.11,382,26414.513.4+451,262
Parents and homebuilders (35 to 49)2,605,00020.218.92,127,81822.422.4+477,182
Older workers and pre-retirees (50 to 59)1,611,46212.512.91,105,00111.612.2+506,461
Empty nesters and retirees (60 to 69)1,429,49211.112.2732,1617.78.2+697,331
Seniors (70 to 84)1,330,90210.312.1809,6178.510.1+521,285
Elderly aged (85 and over)331,8992.63.2179,1251.92.3+152,774
Total12,877,640100.0100.09,501,010100.0100.0+3,376,630
Source: Australian Bureau of Statistics, Census of Population and Housing 2001 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the female service age groups of Australia in 2021 compared to South Australia shows that there was a higher proportion of females in the younger age groups (0 to 17 years) and a lower proportion of females in the older age groups (60+ years).

Overall, 20.8% of the female population was aged between 0 and 17, and 24.0% were aged 60 years and over, compared with 19.6% and 27.5% respectively for South Australia.

The major differences between the female age structure of Australia and South Australia were:

  • A larger percentage of 'Parents and homebuilders' (20.2% compared to 18.9%)
  • A larger percentage of 'Young workforce' (14.2% compared to 13.1%)
  • A smaller percentage of 'Seniors' (10.3% compared to 12.1%)
  • A smaller percentage of 'Empty nesters and retirees' (11.1% compared to 12.2%)

Emerging groups

From 2001 to 2021, Australia's female population increased by 3,376,630 people (35.5%). This represents an average annual population change of 1.53% per year over the period.

The largest changes in the female age structure in this area between 2001 and 2021 were in the age groups:

  • Empty nesters and retirees (60 to 69) (+697,331 females)
  • Seniors (70 to 84) (+521,285 females)
  • Older workers and pre-retirees (50 to 59) (+506,461 females)
  • Parents and homebuilders (35 to 49) (+477,182 females)

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