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RDA Limestone Coast RegionCommunity profile

Limestone Coast region

Five year age groups

In 2021, the largest age group in Limestone Coast region was 55 to 59 year olds. The group that changed the most since 2011 was 70 to 74 year olds, increasing by 1,546 people.

The Age Structure of Limestone Coast region provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Limestone Coast region'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 Limestone Coast region'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
Limestone Coast region - Total persons (Usual residence)20212011Change
Five year age groups (years)Number%Regional SA %Number%Regional SA %2011 to 2021
0 to 43,4595.24.94,1916.66.1-732
5 to 93,9095.85.74,2526.76.2-343
10 to 144,3046.46.14,4117.06.7-107
15 to 193,8775.85.34,0986.56.2-221
20 to 243,3385.04.63,1545.04.9+184
25 to 293,6865.55.13,5305.65.1+156
30 to 343,7705.65.43,6495.85.1+121
35 to 393,9035.85.43,8486.15.9+55
40 to 443,8455.85.24,6247.36.9-779
45 to 494,0126.05.84,5427.27.1-530
50 to 544,6887.06.74,5607.27.4+128
55 to 594,7047.07.24,2746.87.0+430
60 to 644,6657.07.74,0156.47.0+650
65 to 694,4266.67.42,9774.75.7+1,449
70 to 743,9265.96.82,3803.84.4+1,546
75 to 792,6964.04.81,7972.83.3+899
80 to 841,8902.83.11,4832.42.6+407
85 and over1,7482.62.81,2932.02.3+455
Total population66,846100.0100.063,078100.0100.0+3,768
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 five year age groups of Limestone Coast region in 2021 compared to Regional SA 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, 17.5% of the population was aged between 0 and 15, and 22.0% were aged 65 years and over, compared with 16.7% and 24.9% respectively for Regional SA.

The major differences between the age structure of Limestone Coast region and Regional SA were:

  • A smaller percentage of persons aged 70 to 74 (5.9% compared to 6.8%)
  • A smaller percentage of persons aged 75 to 79 (4.0% compared to 4.8%)
  • A smaller percentage of persons aged 65 to 69 (6.6% compared to 7.4%)
  • A smaller percentage of persons aged 60 to 64 (7.0% compared to 7.7%)

Emerging groups

From 2011 to 2021, Limestone Coast region's population increased by 3,768 people (6.0%). This represents an average annual population change of 0.58% per year over the period.

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

  • 70 to 74 (+1,546 persons)
  • 65 to 69 (+1,449 persons)
  • 75 to 79 (+899 persons)
  • 40 to 44 (-779 persons)

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