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LEARN MORE ABOUT .idIn 2021, the largest age group in Corio was 15 to 19 year olds. The group that changed the most since 1991 was 10 to 14 year olds, decreasing by 704 people.
The Age Structure of Corio provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Corio'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 Corio'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 | |||||||
|---|---|---|---|---|---|---|---|
| Corio - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Greater Geelong % | Number | % | City of Greater Geelong % | 1991 to 2021 |
| 0 to 4 | 909 | 5.8 | 5.8 | 1,511 | 8.8 | 7.4 | -602 |
| 5 to 9 | 921 | 5.9 | 6.1 | 1,577 | 9.2 | 7.4 | -656 |
| 10 to 14 | 1,054 | 6.8 | 5.9 | 1,758 | 10.2 | 7.7 | -704 |
| 15 to 19 | 1,409 | 9.1 | 5.7 | 1,985 | 11.5 | 8.5 | -576 |
| 20 to 24 | 1,107 | 7.1 | 6.4 | 1,293 | 7.5 | 7.7 | -186 |
| 25 to 29 | 1,278 | 8.2 | 7.2 | 1,457 | 8.5 | 7.4 | -179 |
| 30 to 34 | 1,053 | 6.8 | 7.0 | 1,488 | 8.7 | 7.9 | -435 |
| 35 to 39 | 913 | 5.9 | 6.8 | 1,400 | 8.1 | 7.5 | -487 |
| 40 to 44 | 860 | 5.5 | 6.0 | 1,176 | 6.8 | 7.1 | -316 |
| 45 to 49 | 953 | 6.1 | 6.3 | 802 | 4.7 | 5.5 | +151 |
| 50 to 54 | 920 | 5.9 | 6.0 | 627 | 3.6 | 4.7 | +293 |
| 55 to 59 | 972 | 6.2 | 5.9 | 604 | 3.5 | 4.3 | +368 |
| 60 to 64 | 868 | 5.6 | 5.9 | 541 | 3.1 | 4.5 | +327 |
| 65 to 69 | 753 | 4.8 | 5.5 | 447 | 2.6 | 4.3 | +306 |
| 70 to 74 | 656 | 4.2 | 5.0 | 261 | 1.5 | 3.2 | +395 |
| 75 to 79 | 441 | 2.8 | 3.6 | 176 | 1.0 | 2.6 | +265 |
| 80 to 84 | 286 | 1.8 | 2.5 | 79 | 0.5 | 1.5 | +207 |
| 85 and over | 210 | 1.3 | 2.5 | 17 | 0.1 | 1.0 | +193 |
| Total population | 15,563 | 100.0 | 100.0 | 17,199 | 100.0 | 100.0 | -1,636 |
Dominant groups
Analysis of the five year age groups of Corio in 2021 compared to the City of Greater Geelong 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, 18.5% of the population was aged between 0 and 15, and 15.1% were aged 65 years and over, compared with 17.8% and 19.2% respectively for the City of Greater Geelong.
The major differences between the age structure of Corio and the City of Greater Geelong were:
- A larger percentage of persons aged 15 to 19 (9.1% compared to 5.7%)
- A larger percentage of persons aged 25 to 29 (8.2% compared to 7.2%)
- A smaller percentage of persons aged 85 and over (1.3% compared to 2.5%)
- A smaller percentage of persons aged 35 to 39 (5.9% compared to 6.8%)
Emerging groups
From 1991 to 2021, Corio's population decreased by 1,636 people (9.5%). This represents an average annual population change of -0.33% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 10 to 14 (-704 persons)
- 5 to 9 (-656 persons)
- 0 to 4 (-602 persons)
- 15 to 19 (-576 persons)
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