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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of Marion was 30 to 34 year olds. The group that changed the most since 2006 was 65 to 69 year olds, increasing by 2,278 people.
The Age Structure of the City of Marion provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Marion'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 the City of Marion'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 | |||||||
|---|---|---|---|---|---|---|---|
| City of Marion - Total persons (Enumerated) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | Hallett Cove % | Number | % | Hallett Cove % | 2006 to 2021 |
| 0 to 4 | 5,080 | 5.4 | 5.0 | 4,101 | 5.3 | 4.8 | +979 |
| 5 to 9 | 5,221 | 5.6 | 5.8 | 4,266 | 5.5 | 6.4 | +955 |
| 10 to 14 | 4,917 | 5.3 | 6.0 | 4,553 | 5.9 | 8.1 | +364 |
| 15 to 19 | 4,851 | 5.2 | 5.7 | 5,270 | 6.8 | 8.8 | -419 |
| 20 to 24 | 6,298 | 6.7 | 5.5 | 5,363 | 6.9 | 6.8 | +935 |
| 25 to 29 | 6,842 | 7.3 | 4.8 | 4,997 | 6.5 | 4.9 | +1,845 |
| 30 to 34 | 7,208 | 7.7 | 5.7 | 5,102 | 6.6 | 5.5 | +2,106 |
| 35 to 39 | 7,041 | 7.5 | 6.8 | 5,257 | 6.8 | 6.6 | +1,784 |
| 40 to 44 | 6,157 | 6.6 | 6.8 | 5,537 | 7.2 | 8.4 | +620 |
| 45 to 49 | 5,729 | 6.1 | 6.6 | 5,867 | 7.6 | 9.9 | -138 |
| 50 to 54 | 5,465 | 5.8 | 6.9 | 5,597 | 7.2 | 9.1 | -132 |
| 55 to 59 | 5,486 | 5.9 | 7.5 | 4,772 | 6.2 | 7.4 | +714 |
| 60 to 64 | 5,603 | 6.0 | 8.1 | 3,510 | 4.5 | 3.9 | +2,093 |
| 65 to 69 | 5,267 | 5.6 | 7.2 | 2,989 | 3.9 | 3.2 | +2,278 |
| 70 to 74 | 4,404 | 4.7 | 5.5 | 2,794 | 3.6 | 2.1 | +1,610 |
| 75 to 79 | 3,036 | 3.2 | 2.8 | 3,077 | 4.0 | 2.3 | -41 |
| 80 to 84 | 2,172 | 2.3 | 1.8 | 2,538 | 3.3 | 1.3 | -366 |
| 85 and over | 2,705 | 2.9 | 1.3 | 1,651 | 2.1 | 0.4 | +1,054 |
| Total population | 93,482 | 100.0 | 100.0 | 77,241 | 100.0 | 100.0 | +16,241 |
Dominant groups
Analysis of the five year age groups of the City of Marion in 2021 compared to Hallett Cove shows that there was a lower proportion of people in the younger age groups (under 15) and a similar proportion of people in the older age groups (65+).
Overall, 16.3% of the population was aged between 0 and 15, and 18.8% were aged 65 years and over, compared with 16.8% and 18.6% respectively for Hallett Cove.
The major differences between the age structure of the City of Marion and Hallett Cove were:
- A larger percentage of persons aged 25 to 29 (7.3% compared to 4.8%)
- A larger percentage of persons aged 30 to 34 (7.7% compared to 5.7%)
- A smaller percentage of persons aged 60 to 64 (6.0% compared to 8.1%)
- A smaller percentage of persons aged 55 to 59 (5.9% compared to 7.5%)
Emerging groups
From 2006 to 2021, City of Marion's population increased by 16,241 people (21.0%). This represents an average annual population change of 1.28% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 65 to 69 (+2,278 persons)
- 30 to 34 (+2,106 persons)
- 60 to 64 (+2,093 persons)
- 25 to 29 (+1,845 persons)
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