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City of OnkaparingaCommunity profile

Aldinga Beach

Five year age groups

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In 2021, the largest age group in Aldinga Beach was 5 to 9 year olds. The group that changed the most since 1996 was 15 to 19 year olds, increasing by 514 people.

The Age Structure of Aldinga Beach provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Aldinga Beach's residential role and function and how it is likely to change in the future.

Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.

To get a more complete picture Aldinga Beach'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 - Five year age groups
Aldinga Beach - Total persons (Enumerated)20211996Change
Five year age groups (years)Number%City of Onkaparinga %Number%City of Onkaparinga %1996 to 2021
0 to 46155.95.43359.07.7+280
5 to 98147.76.33449.28.0+470
10 to 148007.66.33459.38.7+454
15 to 196946.65.91804.87.8+514
20 to 245585.35.61875.06.8+370
25 to 295425.25.92807.56.9+262
30 to 346185.96.33338.97.8+285
35 to 397667.36.73228.68.5+444
40 to 446556.26.22436.58.4+412
45 to 496546.26.42256.18.3+428
50 to 546416.16.61534.15.5+488
55 to 596546.26.41794.83.7+475
60 to 645865.66.31684.53.0+418
65 to 695475.25.81754.73.0+372
70 to 745455.25.61213.22.6+424
75 to 793753.63.8742.01.7+300
80 to 842362.22.3451.21.0+190
85 and over2092.02.2170.50.6+191
Total population10,509100.0100.03,733100.0100.0+6,775
Source: Australian Bureau of Statistics, Census of Population and Housing 1996 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Aldinga Beach in 2021 compared to the City of Onkaparinga shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 21.2% of the population was aged between 0 and 15, and 18.2% were aged 65 years and over, compared with 18.0% and 19.7% respectively for the City of Onkaparinga.

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

  • A larger percentage of persons aged 5 to 9 (7.7% compared to 6.3%)
  • A larger percentage of persons aged 10 to 14 (7.6% compared to 6.3%)
  • A smaller percentage of persons aged 25 to 29 (5.2% compared to 5.9%)
  • A smaller percentage of persons aged 60 to 64 (5.6% compared to 6.3%)

Emerging groups

From 1996 to 2021, Aldinga Beach's population increased by 6,776 people (181.5%). This represents an average annual population change of 4.23% per year over the period.

The largest changes in age structure in this area between 1996 and 2021 were in the age groups:

  • 15 to 19 (+514 persons)
  • 50 to 54 (+488 persons)
  • 55 to 59 (+475 persons)
  • 5 to 9 (+470 persons)

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