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City of OnkaparingaCommunity profile

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 the City of Onkaparinga.

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?'

Age structure - Service age groups
Central South District - Total persons (Usual residence)20212016Change
Service age group (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2016 to 2021
Babies and pre-schoolers (0 to 4)1,6356.35.41,6477.36.2-12
Primary schoolers (5 to 11)2,5589.98.62,1739.78.9+385
Secondary schoolers (12 to 17)1,9447.57.31,6717.57.5+273
Tertiary education and independence (18 to 24)2,0427.97.91,9228.68.4+120
Young workforce (25 to 34)3,60713.912.23,16614.112.4+440
Parents and homebuilders (35 to 49)5,25920.319.24,50820.119.7+750
Older workers and pre-retirees (50 to 59)3,13712.113.12,74312.213.3+394
Empty nesters and retirees (60 to 69)2,76710.712.32,37410.612.4+392
Seniors (70 to 84)2,4629.511.81,7988.09.1+664
Elderly aged (85 and over)4761.82.24201.92.1+56
Total25,887100.0100.022,426100.0100.0+3,461
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 service age groups of the Central South District in 2021 compared to the City of Onkaparinga 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, 23.7% of the population was aged between 0 and 17, and 22.0% were aged 60 years and over, compared with 21.3% and 26.3% respectively for the City of Onkaparinga.

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

  • A larger percentage of 'Young workforce' (13.9% compared to 12.2%)
  • A larger percentage of 'Primary schoolers' (9.9% compared to 8.6%)
  • A smaller percentage of 'Seniors' (9.5% compared to 11.8%)
  • A smaller percentage of 'Empty nesters and retirees' (10.7% compared to 12.3%)

Emerging groups

From 2016 to 2021, Central South District's population increased by 3,461 people (15.4%). This represents an average annual population change of 2.91% 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) (+750 people)
  • Seniors (70 to 84) (+664 people)
  • Young workforce (25 to 34) (+440 people)
  • Older workers and pre-retirees (50 to 59) (+394 people)

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