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The Hills Shire CouncilCommunity profile
Service age groups Five year age groups Age-sex pyramid

Baulkham Hills

Service age groups

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In 2021, Baulkham Hills had similar proportion of children (under 18) and a higher proportion of persons aged 60 or older than The Hills Shire.

The Age Structure of Baulkham Hills provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Baulkham Hills'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 Baulkham Hills'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
Baulkham Hills - Total persons (Enumerated)20212011Change
Service age group (years)Number%The Hills Shire %Number%The Hills Shire %2011 to 2021
Babies and pre-schoolers (0 to 4)2,0995.85.82,4967.86.8-398
Primary schoolers (5 to 11)4,20811.610.83,27210.210.6+936
Secondary schoolers (12 to 17)2,8587.98.82,5357.99.0+322
Tertiary education and independence (18 to 24)2,6287.38.62,5447.99.4+84
Young workforce (25 to 34)3,4009.410.13,86012.010.7-461
Parents and homebuilders (35 to 49)9,03224.923.67,70324.023.2+1,329
Older workers and pre-retirees (50 to 59)4,32411.912.43,83312.013.6+490
Empty nesters and retirees (60 to 69)3,3549.39.83,45310.810.2-100
Seniors (70 to 84)3,64710.18.71,9426.15.5+1,704
Elderly aged (85 and over)6881.91.54391.41.1+248
Total36,238100.0100.032,082100.0100.0+4,155
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 service age groups of Baulkham Hills in 2021 compared to The Hills Shire shows that there was a similar proportion of people in the younger age groups (0 to 17 years) and a higher proportion of people in the older age groups (60+ years).

Overall, 25.3% of the population was aged between 0 and 17, and 21.2% were aged 60 years and over, compared with 25.4% and 20.0% respectively for The Hills Shire.

The major differences between the age structure of Baulkham Hills and The Hills Shire were:

  • A larger percentage of 'Seniors' (10.1% compared to 8.7%)
  • A larger percentage of 'Parents and homebuilders' (24.9% compared to 23.6%)
  • A smaller percentage of 'Tertiary education & independence' (7.3% compared to 8.6%)
  • A smaller percentage of 'Secondary schoolers' (7.9% compared to 8.8%)

Emerging groups

From 2011 to 2021, Baulkham Hills's population increased by 4,156 people (13.0%). This represents an average annual population change of 1.23% per year over the period.

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

  • Seniors (70 to 84) (+1,704 people)
  • Parents and homebuilders (35 to 49) (+1,329 people)
  • Primary schoolers (5 to 11) (+936 people)
  • Older workers and pre-retirees (50 to 59) (+490 people)

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