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LEARN MORE ABOUT .idIn 2021, the largest age group in St Albans was 25 to 29 year olds. The group that changed the most since 1991 was 15 to 19 year olds, decreasing by 670 people.
The Age Structure of St Albans provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of St Albans'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 St Albans'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 | |||||||
|---|---|---|---|---|---|---|---|
| St Albans - Total females (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | City of Brimbank % | Number | % | City of Brimbank % | 1991 to 2021 |
| 0 to 4 | 1,020 | 5.4 | 5.4 | 1,216 | 7.0 | 7.9 | -196 |
| 5 to 9 | 1,033 | 5.5 | 5.8 | 1,286 | 7.4 | 8.2 | -253 |
| 10 to 14 | 928 | 4.9 | 5.5 | 1,476 | 8.5 | 8.7 | -548 |
| 15 to 19 | 989 | 5.2 | 5.7 | 1,659 | 9.6 | 9.0 | -670 |
| 20 to 24 | 1,363 | 7.2 | 6.5 | 1,623 | 9.4 | 8.6 | -260 |
| 25 to 29 | 1,640 | 8.7 | 7.5 | 1,324 | 7.6 | 8.2 | +315 |
| 30 to 34 | 1,598 | 8.5 | 7.6 | 1,312 | 7.6 | 8.6 | +286 |
| 35 to 39 | 1,316 | 7.0 | 7.2 | 1,395 | 8.1 | 8.6 | -80 |
| 40 to 44 | 1,123 | 5.9 | 6.4 | 1,439 | 8.3 | 8.3 | -316 |
| 45 to 49 | 1,103 | 5.8 | 6.5 | 1,055 | 6.1 | 5.8 | +47 |
| 50 to 54 | 1,122 | 5.9 | 6.6 | 856 | 4.9 | 4.5 | +265 |
| 55 to 59 | 1,022 | 5.4 | 6.0 | 714 | 4.1 | 3.7 | +307 |
| 60 to 64 | 1,026 | 5.4 | 6.0 | 681 | 3.9 | 3.3 | +344 |
| 65 to 69 | 983 | 5.2 | 5.3 | 596 | 3.4 | 2.9 | +386 |
| 70 to 74 | 894 | 4.7 | 4.4 | 349 | 2.0 | 1.7 | +544 |
| 75 to 79 | 642 | 3.4 | 3.1 | 189 | 1.1 | 1.1 | +453 |
| 80 to 84 | 518 | 2.7 | 2.1 | 96 | 0.6 | 0.5 | +422 |
| 85 and over | 565 | 3.0 | 2.3 | 41 | 0.2 | 0.4 | +523 |
| Total population | 18,885 | 100.0 | 100.0 | 17,316 | 100.0 | 100.0 | +1,569 |
Dominant groups
Analysis of the female five year age groups of St Albans in 2021 compared to the City of Brimbank 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, 15.8% of the female population was aged between 0 and 15, and 19.1% were aged 65 years and over, compared with 16.8% and 17.2% respectively for the City of Brimbank.
The major differences between the female age structure of St Albans and the City of Brimbank were:
- A larger percentage of females aged 25 to 29 (8.7% compared to 7.5%)
- A larger percentage of females aged 30 to 34 (8.5% compared to 7.6%)
- A larger percentage of females aged 20 to 24 (7.2% compared to 6.5%)
- A smaller percentage of females aged 45 to 49 (5.8% compared to 6.5%)
Emerging groups
From 1991 to 2021, St Albans's female population increased by 1,569 people (9.1%). This represents an average annual population change of 0.29% per year over the period.
The largest changes in female age structure in this area between 1991 and 2021 were in the age groups:
- 15 to 19 (-670 females)
- 10 to 14 (-548 females)
- 70 to 74 (+544 females)
- 85 and over (+523 females)
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