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Wollondilly Shire CouncilCommunity profile

In 2021, Tahmoor had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Wollondilly Shire.

The Age Structure of Tahmoor provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Tahmoor'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 Tahmoor'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
Tahmoor - Total persons (Usual residence)20212011Change
Service age group (years)Number%Wollondilly Shire %Number%Wollondilly Shire %2011 to 2021
Babies and pre-schoolers (0 to 4)4738.27.03457.57.3+127
Primary schoolers (5 to 11)62510.810.34489.811.1+176
Secondary schoolers (12 to 17)4668.18.73868.49.2+79
Tertiary education and independence (18 to 24)4818.38.64459.79.0+35
Young workforce (25 to 34)84814.712.152311.410.8+325
Parents and homebuilders (35 to 49)1,10619.219.898521.522.4+121
Older workers and pre-retirees (50 to 59)61310.612.661513.413.7-2
Empty nesters and retirees (60 to 69)5639.810.74339.59.6+129
Seniors (70 to 84)5008.78.93507.65.8+149
Elderly aged (85 and over)911.61.4521.21.1+38
Total5,766100.0100.04,588100.0100.0+1,177
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

Dominant groups

Analysis of the service age groups of Tahmoor in 2021 compared to Wollondilly Shire 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, 27.1% of the population was aged between 0 and 17, and 20.0% were aged 60 years and over, compared with 26.0% and 21.0% respectively for Wollondilly Shire.

The major differences between the age structure of Tahmoor and Wollondilly Shire were:

  • A larger percentage of 'Young workforce' (14.7% compared to 12.1%)
  • A larger percentage of 'Babies and pre-schoolers' (8.2% compared to 7.0%)
  • A smaller percentage of 'Older workers & pre-retirees' (10.6% compared to 12.6%)
  • A smaller percentage of 'Empty nesters and retirees' (9.8% compared to 10.7%)

Emerging groups

From 2011 to 2021, Tahmoor's population increased by 1,178 people (25.7%). This represents an average annual population change of 2.31% per year over the period.

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

  • Young workforce (25 to 34) (+325 people)
  • Primary schoolers (5 to 11) (+176 people)
  • Seniors (70 to 84) (+149 people)
  • Empty nesters and retirees (60 to 69) (+129 people)

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