Powered by .id (informed decisions) for Colac Otway Shire
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LEARN MORE ABOUT .idIn 2021, the largest age group in Colac Otway Shire was 65 to 69 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 219 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 females (Enumerated) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Rural North % | Number | % | Rural North % | 2016 to 2021 |
| 0 to 4 | 553 | 4.9 | 4.8 | 574 | 5.6 | 7.0 | -21 |
| 5 to 9 | 623 | 5.6 | 7.4 | 586 | 5.7 | 6.0 | +37 |
| 10 to 14 | 623 | 5.6 | 5.4 | 592 | 5.8 | 6.6 | +31 |
| 15 to 19 | 571 | 5.1 | 5.3 | 575 | 5.6 | 6.8 | -4 |
| 20 to 24 | 500 | 4.5 | 4.0 | 502 | 4.9 | 3.7 | -2 |
| 25 to 29 | 648 | 5.8 | 6.2 | 531 | 5.2 | 3.9 | +117 |
| 30 to 34 | 669 | 6.0 | 5.8 | 541 | 5.3 | 6.4 | +128 |
| 35 to 39 | 643 | 5.7 | 5.9 | 495 | 4.8 | 6.1 | +148 |
| 40 to 44 | 592 | 5.3 | 5.9 | 618 | 6.0 | 6.9 | -26 |
| 45 to 49 | 664 | 5.9 | 5.8 | 725 | 7.1 | 6.8 | -61 |
| 50 to 54 | 777 | 6.9 | 7.1 | 708 | 6.9 | 8.8 | +69 |
| 55 to 59 | 808 | 7.2 | 8.8 | 750 | 7.3 | 5.9 | +58 |
| 60 to 64 | 799 | 7.1 | 7.0 | 766 | 7.5 | 7.7 | +33 |
| 65 to 69 | 825 | 7.4 | 7.8 | 671 | 6.6 | 6.7 | +154 |
| 70 to 74 | 707 | 6.3 | 6.8 | 488 | 4.8 | 4.5 | +219 |
| 75 to 79 | 459 | 4.1 | 3.2 | 410 | 4.0 | 2.6 | +49 |
| 80 to 84 | 340 | 3.0 | 1.4 | 320 | 3.1 | 2.2 | +20 |
| 85 and over | 402 | 3.6 | 1.4 | 366 | 3.6 | 1.4 | +36 |
| Total population | 11,203 | 100.0 | 100.0 | 10,218 | 100.0 | 100.0 | +985 |
Dominant groups
Analysis of the female five year age groups of Colac Otway Shire in 2021 compared to Rural North shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).
Overall, 16.1% of the female population was aged between 0 and 15, and 24.4% were aged 65 years and over, compared with 17.5% and 20.6% respectively for Rural North.
The major differences between the female age structure of Colac Otway Shire and Rural North were:
- A larger percentage of females aged 85 and over (3.6% compared to 1.4%)
- A larger percentage of females aged 80 to 84 (3.0% compared to 1.4%)
- A smaller percentage of females aged 5 to 9 (5.6% compared to 7.4%)
- A smaller percentage of females aged 55 to 59 (7.2% compared to 8.8%)
Emerging groups
From 2016 to 2021, Colac Otway Shire's female population increased by 985 people (9.6%). This represents an average annual population change of 1.86% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
- 70 to 74 (+219 females)
- 65 to 69 (+154 females)
- 35 to 39 (+148 females)
- 30 to 34 (+128 females)
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