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LEARN MORE ABOUT .idIn 2021, the largest age group in Victoria was 30 to 34 year olds. The group that changed the most since 1991 was 30 to 34 year olds, increasing by 499,959 people.
The Age Structure of Victoria provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Victoria'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 Victoria'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 | |||||||
|---|---|---|---|---|---|---|---|
| Victoria - Total persons (Usual residence) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Australia % | Number | % | Australia % | 1991 to 2021 |
| 0 to 4 | 375,900 | 5.8 | 5.8 | 0 | -- | -- | +375,900 |
| 5 to 9 | 402,168 | 6.2 | 6.2 | 0 | -- | -- | +402,168 |
| 10 to 14 | 391,388 | 6.0 | 6.2 | 0 | -- | -- | +391,388 |
| 15 to 19 | 363,201 | 5.6 | 5.7 | 0 | -- | -- | +363,201 |
| 20 to 24 | 410,337 | 6.3 | 6.2 | 0 | -- | -- | +410,337 |
| 25 to 29 | 475,532 | 7.3 | 7.0 | 0 | -- | -- | +475,532 |
| 30 to 34 | 499,959 | 7.7 | 7.3 | 0 | -- | -- | +499,959 |
| 35 to 39 | 489,927 | 7.5 | 7.2 | 0 | -- | -- | +489,927 |
| 40 to 44 | 428,808 | 6.6 | 6.5 | 0 | -- | -- | +428,808 |
| 45 to 49 | 416,524 | 6.4 | 6.4 | 0 | -- | -- | +416,524 |
| 50 to 54 | 410,360 | 6.3 | 6.3 | 0 | -- | -- | +410,360 |
| 55 to 59 | 383,916 | 5.9 | 6.1 | 0 | -- | -- | +383,916 |
| 60 to 64 | 362,634 | 5.6 | 5.8 | 0 | -- | -- | +362,634 |
| 65 to 69 | 320,562 | 4.9 | 5.1 | 0 | -- | -- | +320,562 |
| 70 to 74 | 285,000 | 4.4 | 4.6 | 0 | -- | -- | +285,000 |
| 75 to 79 | 203,205 | 3.1 | 3.2 | 0 | -- | -- | +203,205 |
| 80 to 84 | 141,601 | 2.2 | 2.2 | 0 | -- | -- | +141,601 |
| 85 and over | 142,475 | 2.2 | 2.1 | 12,549 | 100.0 | 100.0 | +129,926 |
| Total population | 6,503,497 | 100.0 | 100.0 | 12,549 | 100.0 | 100.0 | +6,490,948 |
Dominant groups
Analysis of the five year age groups of Victoria in 2021 compared to Australia shows that there was a similar proportion of people in the younger age groups (under 15) as well as a similar proportion of people in the older age groups (65+).
Overall, 18.0% of the population was aged between 0 and 15, and 16.8% were aged 65 years and over, compared with 18.2% and 17.2% respectively for Australia.
There were no major differences between Victoria and Australia in 2021.
Emerging groups
From 1991 to 2021, Victoria's population increased by 6,490,948 people (51724.8%). This represents an average annual population change of 23.16% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 30 to 34 (+499,959 persons)
- 35 to 39 (+489,927 persons)
- 25 to 29 (+475,532 persons)
- 40 to 44 (+428,808 persons)
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