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LEARN MORE ABOUT .idIn 2021, the largest age group in Blackburn was 50 to 54 year olds. The group that changed the most since 2001 was 60 to 64 year olds, increasing by 411 people.
The Age Structure of Blackburn provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Blackburn'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 Blackburn'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 | |||||||
|---|---|---|---|---|---|---|---|
| Blackburn - Total persons (Enumerated) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Victoria % | Number | % | Victoria % | 2001 to 2021 |
| 0 to 4 | 565 | 3.9 | 5.8 | 771 | 6.6 | 6.5 | -207 |
| 5 to 9 | 814 | 5.7 | 6.2 | 679 | 5.9 | 7.0 | +134 |
| 10 to 14 | 922 | 6.4 | 6.0 | 688 | 5.9 | 7.0 | +233 |
| 15 to 19 | 912 | 6.4 | 5.6 | 685 | 5.9 | 7.0 | +227 |
| 20 to 24 | 1,000 | 7.0 | 6.3 | 657 | 5.7 | 6.8 | +342 |
| 25 to 29 | 880 | 6.1 | 7.3 | 718 | 6.2 | 7.2 | +161 |
| 30 to 34 | 880 | 6.1 | 7.7 | 901 | 7.8 | 7.8 | -21 |
| 35 to 39 | 984 | 6.9 | 7.6 | 850 | 7.3 | 7.7 | +134 |
| 40 to 44 | 965 | 6.7 | 6.6 | 936 | 8.1 | 7.7 | +29 |
| 45 to 49 | 1,021 | 7.1 | 6.4 | 773 | 6.7 | 7.0 | +248 |
| 50 to 54 | 1,031 | 7.2 | 6.3 | 773 | 6.7 | 6.6 | +257 |
| 55 to 59 | 901 | 6.3 | 5.9 | 554 | 4.8 | 5.1 | +346 |
| 60 to 64 | 861 | 6.0 | 5.5 | 449 | 3.9 | 4.1 | +411 |
| 65 to 69 | 669 | 4.7 | 4.8 | 470 | 4.1 | 3.5 | +198 |
| 70 to 74 | 596 | 4.2 | 4.3 | 583 | 5.0 | 3.3 | +12 |
| 75 to 79 | 463 | 3.2 | 3.1 | 520 | 4.5 | 2.7 | -57 |
| 80 to 84 | 361 | 2.5 | 2.2 | 321 | 2.8 | 1.7 | +39 |
| 85 and over | 526 | 3.7 | 2.2 | 272 | 2.3 | 1.5 | +253 |
| Total population | 14,351 | 100.0 | 100.0 | 11,610 | 100.0 | 100.0 | +2,740 |
Dominant groups
Analysis of the five year age groups of Blackburn in 2021 compared to Victoria 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, 16.0% of the population was aged between 0 and 15, and 18.2% were aged 65 years and over, compared with 18.1% and 16.6% respectively for Victoria.
The major differences between the age structure of Blackburn and Victoria were:
- A larger percentage of persons aged 85 and over (3.7% compared to 2.2%)
- A smaller percentage of persons aged 0 to 4 (3.9% compared to 5.8%)
- A smaller percentage of persons aged 30 to 34 (6.1% compared to 7.7%)
- A smaller percentage of persons aged 25 to 29 (6.1% compared to 7.3%)
Emerging groups
From 2001 to 2021, Blackburn's population increased by 2,741 people (23.6%). This represents an average annual population change of 1.07% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 60 to 64 (+411 persons)
- 55 to 59 (+346 persons)
- 20 to 24 (+342 persons)
- 50 to 54 (+257 persons)
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