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City of OnkaparingaCommunity profile

Central North District

Service age groups

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

The Age Structure of the Central North 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 North 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 North 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 North District - Total persons (Usual residence)20212006Change
Service age group (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2006 to 2021
Babies and pre-schoolers (0 to 4)4,1295.45.44,3426.26.1-214
Primary schoolers (5 to 11)6,2008.18.66,6569.69.7-456
Secondary schoolers (12 to 17)5,1906.87.35,7598.38.8-569
Tertiary education and independence (18 to 24)6,3548.37.96,6879.69.4-333
Young workforce (25 to 34)10,36313.612.29,11113.112.2+1,252
Parents and homebuilders (35 to 49)14,36218.819.214,60321.022.2-241
Older workers and pre-retirees (50 to 59)9,69212.713.19,69913.914.5-7
Empty nesters and retirees (60 to 69)8,98411.812.36,2649.08.6+2,719
Seniors (70 to 84)9,30912.211.85,3187.67.1+3,991
Elderly aged (85 and over)1,8682.42.21,1481.61.4+720
Total76,451100.0100.069,590100.0100.0+6,860
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 service age groups of the Central North District in 2021 compared to the City of Onkaparinga shows that there was a lower proportion of people in the younger age groups (0 to 17 years) and a similar proportion of people in the older age groups (60+ years).

Overall, 20.3% of the population was aged between 0 and 17, and 26.4% were aged 60 years and over, compared with 21.3% and 26.3% respectively for the City of Onkaparinga.

The major difference between the age structure of the Central North District and the City of Onkaparinga is:

  • A larger percentage of 'Young workforce' (13.6% compared to 12.2%)

Emerging groups

From 2006 to 2021, Central North District's population increased by 6,861 people (9.9%). This represents an average annual population change of 0.63% per year over the period.

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

  • Seniors (70 to 84) (+3,991 people)
  • Empty nesters and retirees (60 to 69) (+2,719 people)
  • Young workforce (25 to 34) (+1,252 people)
  • Elderly aged (85 and over) (+720 people)

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