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

City of Onkaparinga

Service age groups

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

The Age Structure of the City of Onkaparinga provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of the City of Onkaparinga'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 City of Onkaparinga'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
City of Onkaparinga - Total females (Enumerated)20212011Change
Service age group (years)Number%Hills South District %Number%Hills South District %2011 to 2021
Babies and pre-schoolers (0 to 4)4,5765.24.05,0346.35.5-458
Primary schoolers (5 to 11)7,3428.38.66,9218.77.9+421
Secondary schoolers (12 to 17)6,0626.96.96,3127.98.4-250
Tertiary education and independence (18 to 24)6,6927.65.76,8918.65.7-199
Young workforce (25 to 34)10,71212.17.210,17512.78.6+537
Parents and homebuilders (35 to 49)17,16319.418.116,83821.123.1+325
Older workers and pre-retirees (50 to 59)11,60813.115.811,10913.915.1+499
Empty nesters and retirees (60 to 69)11,09112.614.78,73410.912.6+2,357
Seniors (70 to 84)10,71112.115.86,1397.710.4+4,572
Elderly aged (85 and over)2,3282.63.41,7802.22.7+548
Total88,285100.0100.079,933100.0100.0+8,352
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 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, 2011 and 2021 (Enumerated data). Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the female service age groups of the City of Onkaparinga in 2021 compared to the Hills South District 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, 20.4% of the female population was aged between 0 and 17, and 27.3% were aged 60 years and over, compared with 19.4% and 33.8% respectively for the Hills South District.

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

  • A larger percentage of 'Young workforce' (12.1% compared to 7.2%)
  • A smaller percentage of 'Seniors' (12.1% compared to 15.8%)
  • A smaller percentage of 'Older workers & pre-retirees' (13.1% compared to 15.8%)
  • A smaller percentage of 'Empty nesters and retirees' (12.6% compared to 14.7%)

Emerging groups

From 2011 to 2021, City of Onkaparinga's female population increased by 8,352 people (10.4%). This represents an average annual population change of 1.0% per year over the period.

The largest changes in the female age structure in this area between 2011 and 2021 were in the age groups:

  • Seniors (70 to 84) (+4,572 females)
  • Empty nesters and retirees (60 to 69) (+2,357 females)
  • Elderly aged (85 and over) (+548 females)
  • Young workforce (25 to 34) (+537 females)

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