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City of OnkaparingaCommunity profile

We’re continuing to update these pages with data from the 2016 Census. Read more about our updates.

Sellicks Beach

Service age groups

This topic has been updated with 2016 Census data for all areas. What's this?

Sellicks Beach had a higher proportion of pre-schoolers and a lower proportion of persons at post retirement age than City of Onkaparinga in 2016.

The Age Structure of Sellicks Beach provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Sellicks Beach'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 Sellicks Beach's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.


Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Service age groups
Sellicks Beach - Total persons (Usual residence)20162011Change
Service age group (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2011 to 2016
Babies and pre-schoolers (0 to 4)1937.46.21747.46.6+19
Primary schoolers (5 to 11)2409.28.92159.28.9+25
Secondary schoolers (12 to 17)2027.77.51988.58.2+4
Tertiary education and independence (18 to 24)2047.88.41968.48.9+8
Young workforce (25 to 34)34313.112.431013.312.6+33
Parents and homebuilders (35 to 49)56921.819.756224.020.9+7
Older workers and pre-retirees (50 to 59)36313.913.330012.813.6+63
Empty nesters and retirees (60 to 69)31312.012.424110.311.1+72
Seniors (70 to 84)1626.29.11255.37.5+37
Elderly aged (85 and over)210.82.1160.71.8+5
Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Please refer to specific data notes for more information

Dominant groups

Analysis of the service age groups of Sellicks Beach in 2016 compared to 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, 24.3% of the population was aged between 0 and 17, and 19.0% were aged 60 years and over, compared with 22.5% and 23.6% respectively for City of Onkaparinga.

The major differences between the age structure of Sellicks Beach and City of Onkaparinga were:

  • A larger percentage of 'Parents and homebuilders (35 to 49)' (21.8% compared to 19.7%)
  • A larger percentage of 'Babies and pre-schoolers (0 to 4)' (7.4% compared to 6.2%)
  • A smaller percentage of 'Seniors (70 to 84)' (6.2% compared to 9.1%)
  • A smaller percentage of 'Elderly aged (85 and over)' (0.8% compared to 2.1%)

Emerging groups

From 2011 to 2016, Sellicks Beach's population increased by 273 people (11.7%). This represents an average annual population change of 2.23% per year over the period.

The largest changes in the age structure in this area between 2011 and 2016 were in the age groups:

  • Empty nesters and retirees (60 to 69) (+72 people)
  • Older workers and pre-retirees (50 to 59) (+63 people)

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