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LEARN MORE ABOUT .idIn 2021, the largest age group in Colac Otway Shire was 60 to 64 year olds. The group that changed the most since 1996 was 60 to 64 year olds, increasing by 779 people.
The Age Structure of Colac Otway Shire provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Colac Otway Shire'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 Colac Otway Shire'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 | |||||||
|---|---|---|---|---|---|---|---|
| Colac Otway Shire - Total persons (Enumerated) | 2021 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | Great Ocean Road - Otways % | Number | % | Great Ocean Road - Otways % | 1996 to 2021 |
| 0 to 4 | 1,135 | 5.1 | 3.9 | 1,436 | 7.3 | 6.7 | -301 |
| 5 to 9 | 1,286 | 5.7 | 4.0 | 1,600 | 8.1 | 6.3 | -314 |
| 10 to 14 | 1,327 | 5.9 | 4.7 | 1,661 | 8.4 | 7.2 | -334 |
| 15 to 19 | 1,234 | 5.5 | 3.9 | 1,325 | 6.7 | 5.8 | -91 |
| 20 to 24 | 1,057 | 4.7 | 3.1 | 1,065 | 5.4 | 4.9 | -8 |
| 25 to 29 | 1,312 | 5.9 | 4.6 | 1,165 | 5.9 | 5.7 | +147 |
| 30 to 34 | 1,341 | 6.0 | 5.7 | 1,321 | 6.7 | 6.5 | +20 |
| 35 to 39 | 1,285 | 5.7 | 5.3 | 1,491 | 7.6 | 8.9 | -206 |
| 40 to 44 | 1,195 | 5.3 | 4.8 | 1,493 | 7.6 | 8.7 | -298 |
| 45 to 49 | 1,338 | 6.0 | 6.3 | 1,354 | 6.9 | 7.4 | -16 |
| 50 to 54 | 1,501 | 6.7 | 8.1 | 1,060 | 5.4 | 4.8 | +441 |
| 55 to 59 | 1,597 | 7.1 | 8.9 | 927 | 4.7 | 4.2 | +670 |
| 60 to 64 | 1,624 | 7.2 | 10.6 | 845 | 4.3 | 5.7 | +779 |
| 65 to 69 | 1,604 | 7.2 | 9.7 | 886 | 4.5 | 4.8 | +718 |
| 70 to 74 | 1,364 | 6.1 | 7.3 | 787 | 4.0 | 4.7 | +577 |
| 75 to 79 | 925 | 4.1 | 4.4 | 594 | 3.0 | 4.4 | +331 |
| 80 to 84 | 646 | 2.9 | 2.8 | 405 | 2.1 | 1.9 | +241 |
| 85 and over | 638 | 2.8 | 2.0 | 259 | 1.3 | 1.1 | +379 |
| Total population | 22,409 | 100.0 | 100.0 | 19,674 | 100.0 | 100.0 | +2,735 |
Dominant groups
Analysis of the five year age groups of Colac Otway Shire in 2021 compared to Great Ocean Road - Otways 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, 16.7% of the population was aged between 0 and 15, and 23.1% were aged 65 years and over, compared with 12.5% and 26.2% respectively for Great Ocean Road - Otways.
The major differences between the age structure of Colac Otway Shire and Great Ocean Road - Otways were:
- A larger percentage of persons aged 5 to 9 (5.7% compared to 4.0%)
- A smaller percentage of persons aged 60 to 64 (7.2% compared to 10.6%)
- A smaller percentage of persons aged 65 to 69 (7.2% compared to 9.7%)
- A smaller percentage of persons aged 55 to 59 (7.1% compared to 8.9%)
Emerging groups
From 1996 to 2021, Colac Otway Shire's population increased by 2,735 people (13.9%). This represents an average annual population change of 0.52% per year over the period.
The largest changes in age structure in this area between 1996 and 2021 were in the age groups:
- 60 to 64 (+779 persons)
- 65 to 69 (+718 persons)
- 55 to 59 (+670 persons)
- 70 to 74 (+577 persons)
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