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Northern Beaches CouncilCommunity profile
Service age groups Five year age groups Age-sex pyramid

Dee Why

Service age groups

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In 2021, Dee Why had lower proportion of children (under 18) and a lower proportion of persons aged 60 or older than Northern Beaches Council area.

The Age Structure of Dee Why provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Dee Why'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 Dee Why'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
Dee Why - Total persons (Enumerated)20212006Change
Service age group (years)Number%Northern Beaches Council area %Number%Northern Beaches Council area %2006 to 2021
Babies and pre-schoolers (0 to 4)1,4756.35.41,1146.46.8+361
Primary schoolers (5 to 11)1,4986.48.91,0005.88.9+498
Secondary schoolers (12 to 17)1,0594.68.18675.07.2+192
Tertiary education and independence (18 to 24)1,8247.97.51,73110.07.6+92
Young workforce (25 to 34)4,89321.111.04,00823.213.9+885
Parents and homebuilders (35 to 49)5,75524.821.34,17324.123.3+1,582
Older workers and pre-retirees (50 to 59)2,79112.014.01,78210.312.3+1,009
Empty nesters and retirees (60 to 69)2,0628.910.31,1356.69.0+927
Seniors (70 to 84)1,5186.510.61,2437.28.6+274
Elderly aged (85 and over)3541.52.82541.52.4+100
Total23,229100.0100.017,311100.0100.0+5,918
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
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, 2006 and 2021 (Enumerated data). Compiled and presented in profile.id by .id (informed decisions).

Dominant groups

Analysis of the service age groups of Dee Why in 2021 compared to Northern Beaches Council area shows that there was a lower proportion of people in the younger age groups (0 to 17 years) as well as a lower proportion of people in the older age groups (60+ years).

Overall, 17.4% of the population was aged between 0 and 17, and 16.9% were aged 60 years and over, compared with 22.4% and 23.7% respectively for Northern Beaches Council area.

The major differences between the age structure of Dee Why and Northern Beaches Council area were:

  • A larger percentage of 'Young workforce' (21.1% compared to 11.0%)
  • A larger percentage of 'Parents and homebuilders' (24.8% compared to 21.3%)
  • A smaller percentage of 'Seniors' (6.5% compared to 10.6%)
  • A smaller percentage of 'Secondary schoolers' (4.6% compared to 8.1%)

Emerging groups

From 2006 to 2021, Dee Why's population increased by 5,918 people (34.2%). This represents an average annual population change of 1.98% per year over the period.

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

  • Parents and homebuilders (35 to 49) (+1,582 people)
  • Older workers and pre-retirees (50 to 59) (+1,009 people)
  • Empty nesters and retirees (60 to 69) (+927 people)
  • Young workforce (25 to 34) (+885 people)

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