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Central Coast NSWCommunity profile
Service age groups Five year age groups Age-sex pyramid

Lake Munmorah - Chain Valley Bay

Service age groups

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In 2021, Lake Munmorah - Chain Valley Bay had higher proportion of children (under 18) and a lower proportion of persons aged 60 or older than Erina.

The Age Structure of Lake Munmorah - Chain Valley Bay provides key insights into the level of demand for age based services and facilities such as child care. It is an indicator of Lake Munmorah - Chain Valley Bay'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 Lake Munmorah - Chain Valley Bay'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
Lake Munmorah - Chain Valley Bay - Total persons (Enumerated)20212011Change
Service age group (years)Number%Erina %Number%Erina %2011 to 2021
Babies and pre-schoolers (0 to 4)3504.23.73975.33.7-47
Primary schoolers (5 to 11)5106.26.15757.75.9-65
Secondary schoolers (12 to 17)4585.54.95667.66.7-108
Tertiary education and independence (18 to 24)5046.15.35397.26.1-35
Young workforce (25 to 34)7078.66.86228.35.9+85
Parents and homebuilders (35 to 49)1,00912.213.31,23316.514.9-224
Older workers and pre-retirees (50 to 59)1,00712.28.289412.010.3+113
Empty nesters and retirees (60 to 69)1,30715.810.71,10214.810.8+205
Seniors (70 to 84)2,08225.227.01,41819.022.9+664
Elderly aged (85 and over)3304.014.01181.612.8+212
Total8,264100.0100.07,464100.0100.0+800
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 Lake Munmorah - Chain Valley Bay in 2021 compared to Erina 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, 15.9% of the population was aged between 0 and 17, and 45.0% were aged 60 years and over, compared with 14.7% and 51.7% respectively for Erina.

The major differences between the age structure of Lake Munmorah - Chain Valley Bay and Erina were:

  • A larger percentage of 'Empty nesters and retirees' (15.8% compared to 10.7%)
  • A larger percentage of 'Older workers & pre-retirees' (12.2% compared to 8.2%)
  • A smaller percentage of 'Frail aged' (4.0% compared to 14.0%)
  • A smaller percentage of 'Seniors' (25.2% compared to 27.0%)

Emerging groups

From 2011 to 2021, Lake Munmorah - Chain Valley Bay's population increased by 800 people (10.7%). This represents an average annual population change of 1.02% 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) (+664 people)
  • Parents and homebuilders (35 to 49) (-224 people)
  • Elderly aged (85 and over) (+212 people)
  • Empty nesters and retirees (60 to 69) (+205 people)

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