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City of OnkaparingaCommunity profile
Service age groups Five year age groups Age-sex pyramid

Central South District

Service age groups

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In 2021, the Central South District had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Onkaparinga Hills.

The Age Structure of the Central South District provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of the Central South District'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 the Central South District'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?'

Refers to:

Total population

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Age structure - Service age groups
Central South District - Total persons (Enumerated)20212016Change
Service age group (years)Number%Onkaparinga Hills %Number%Onkaparinga Hills %2016 to 2021
Babies and pre-schoolers (0 to 4)1,6206.44.11,6137.43.7+7
Primary schoolers (5 to 11)2,54410.09.12,1579.99.1+387
Secondary schoolers (12 to 17)1,9257.68.91,6767.710.0+249
Tertiary education and independence (18 to 24)2,0177.98.41,8958.79.5+121
Young workforce (25 to 34)3,54314.09.23,07814.17.8+464
Parents and homebuilders (35 to 49)5,18020.418.04,41420.221.9+765
Older workers and pre-retirees (50 to 59)3,04312.016.82,64112.118.0+401
Empty nesters and retirees (60 to 69)2,67010.514.62,27510.413.2+395
Seniors (70 to 84)2,3849.410.61,6967.86.3+688
Elderly aged (85 and over)4681.80.44071.90.6+61
Total25,394100.0100.021,856100.0100.0+3,538
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
Source: Australian Bureau of Statistics, Census of Population and Housing, 2021 (Enumerated data). Compiled and presented in profile.id by .id (informed decisions).
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 and 2021 (Enumerated data). Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the service age groups of the Central South District in 2021 compared to Onkaparinga Hills shows that there was a higher proportion of people in the younger age groups (0 to 17 years) and a lower proportion of people in the older age groups (60+ years).

Overall, 24.0% of the population was aged between 0 and 17, and 21.7% were aged 60 years and over, compared with 22.1% and 25.5% respectively for Onkaparinga Hills.

The major differences between the age structure of the Central South District and Onkaparinga Hills were:

  • A larger percentage of 'Young workforce' (14.0% compared to 9.2%)
  • A larger percentage of 'Parents and homebuilders' (20.4% compared to 18.0%)
  • A smaller percentage of 'Older workers & pre-retirees' (12.0% compared to 16.8%)
  • A smaller percentage of 'Empty nesters and retirees' (10.5% compared to 14.6%)

Emerging groups

From 2016 to 2021, Central South District's population increased by 3,538 people (16.2%). This represents an average annual population change of 3.05% per year over the period.

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

  • Parents and homebuilders (35 to 49) (+765 people)
  • Seniors (70 to 84) (+688 people)
  • Young workforce (25 to 34) (+464 people)
  • Older workers and pre-retirees (50 to 59) (+401 people)

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