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LEARN MORE ABOUT .idIn 2021, the largest age group in Bass Coast Mainland was 65 to 69 year olds. The group that changed the most since 1991 was 65 to 69 year olds, increasing by 1,437 people.
The Age Structure of Bass Coast Mainland provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Bass Coast Mainland'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 Bass Coast Mainland'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 | |||||||
|---|---|---|---|---|---|---|---|
| Bass Coast Mainland - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Regional VIC % | Number | % | Regional VIC % | 1991 to 2021 |
| 0 to 4 | 1,244 | 4.7 | 5.4 | 997 | 7.1 | 8.0 | +246 |
| 5 to 9 | 1,386 | 5.2 | 6.0 | 1,102 | 7.9 | 8.1 | +284 |
| 10 to 14 | 1,463 | 5.5 | 6.2 | 918 | 6.6 | 8.1 | +544 |
| 15 to 19 | 1,279 | 4.8 | 5.7 | 864 | 6.2 | 7.8 | +414 |
| 20 to 24 | 1,015 | 3.8 | 5.3 | 808 | 5.8 | 6.8 | +207 |
| 25 to 29 | 1,137 | 4.3 | 5.9 | 779 | 5.6 | 7.1 | +357 |
| 30 to 34 | 1,312 | 4.9 | 6.0 | 989 | 7.1 | 7.9 | +322 |
| 35 to 39 | 1,449 | 5.4 | 6.0 | 968 | 6.9 | 7.6 | +480 |
| 40 to 44 | 1,364 | 5.1 | 5.7 | 907 | 6.5 | 7.2 | +457 |
| 45 to 49 | 1,470 | 5.5 | 6.1 | 752 | 5.4 | 5.5 | +718 |
| 50 to 54 | 1,707 | 6.4 | 6.4 | 664 | 4.7 | 4.7 | +1,043 |
| 55 to 59 | 1,937 | 7.3 | 6.7 | 763 | 5.4 | 4.3 | +1,173 |
| 60 to 64 | 2,254 | 8.4 | 6.9 | 957 | 6.8 | 4.5 | +1,297 |
| 65 to 69 | 2,391 | 9.0 | 6.5 | 953 | 6.8 | 4.1 | +1,437 |
| 70 to 74 | 2,085 | 7.8 | 5.8 | 724 | 5.2 | 3.1 | +1,360 |
| 75 to 79 | 1,481 | 5.5 | 4.1 | 459 | 3.3 | 2.5 | +1,022 |
| 80 to 84 | 926 | 3.5 | 2.8 | 282 | 2.0 | 1.5 | +644 |
| 85 and over | 815 | 3.1 | 2.7 | 126 | 0.9 | 1.1 | +689 |
| Total population | 26,715 | 100.0 | 100.0 | 14,021 | 100.0 | 100.0 | +12,694 |
Dominant groups
Analysis of the five year age groups of Bass Coast Mainland in 2021 compared to Regional VIC shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 15.3% of the population was aged between 0 and 15, and 28.8% were aged 65 years and over, compared with 17.7% and 21.8% respectively for Regional VIC.
The major differences between the age structure of Bass Coast Mainland and Regional VIC were:
- A larger percentage of persons aged 65 to 69 (9.0% compared to 6.5%)
- A larger percentage of persons aged 70 to 74 (7.8% compared to 5.8%)
- A larger percentage of persons aged 60 to 64 (8.4% compared to 6.9%)
- A smaller percentage of persons aged 25 to 29 (4.3% compared to 5.9%)
Emerging groups
From 1991 to 2021, Bass Coast Mainland's population increased by 12,694 people (90.5%). This represents an average annual population change of 2.17% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 65 to 69 (+1,437 persons)
- 70 to 74 (+1,360 persons)
- 60 to 64 (+1,297 persons)
- 55 to 59 (+1,173 persons)
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