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LEARN MORE ABOUT .idIn 2021, the largest age group in Birkdale was 50 to 54 year olds. The group that changed the most since 2011 was 70 to 74 year olds, increasing by 379 people.
The Age Structure of Birkdale provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Birkdale'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 Birkdale'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 | |||||||
|---|---|---|---|---|---|---|---|
| Birkdale - Total persons (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | Redland City Islands % | Number | % | Redland City Islands % | 2011 to 2021 |
| 0 to 4 | 748 | 5.1 | 2.5 | 815 | 6.0 | 5.9 | -68 |
| 5 to 9 | 923 | 6.3 | 3.0 | 886 | 6.5 | 5.0 | +37 |
| 10 to 14 | 975 | 6.7 | 4.1 | 935 | 6.9 | 5.7 | +40 |
| 15 to 19 | 924 | 6.4 | 3.5 | 1,087 | 8.0 | 4.1 | -164 |
| 20 to 24 | 755 | 5.2 | 2.7 | 848 | 6.3 | 3.4 | -94 |
| 25 to 29 | 710 | 4.9 | 2.4 | 721 | 5.3 | 3.3 | -12 |
| 30 to 34 | 787 | 5.4 | 2.9 | 682 | 5.0 | 4.3 | +105 |
| 35 to 39 | 917 | 6.3 | 3.7 | 870 | 6.4 | 5.3 | +46 |
| 40 to 44 | 891 | 6.1 | 4.0 | 1,015 | 7.5 | 5.9 | -125 |
| 45 to 49 | 963 | 6.6 | 5.8 | 978 | 7.2 | 6.0 | -15 |
| 50 to 54 | 1,006 | 6.9 | 7.3 | 949 | 7.0 | 7.7 | +57 |
| 55 to 59 | 928 | 6.4 | 9.4 | 908 | 6.7 | 9.0 | +20 |
| 60 to 64 | 900 | 6.2 | 12.3 | 815 | 6.0 | 11.5 | +85 |
| 65 to 69 | 881 | 6.1 | 12.3 | 626 | 4.6 | 9.9 | +254 |
| 70 to 74 | 812 | 5.6 | 11.5 | 433 | 3.2 | 6.1 | +379 |
| 75 to 79 | 618 | 4.2 | 7.3 | 298 | 2.2 | 3.6 | +320 |
| 80 to 84 | 392 | 2.7 | 3.4 | 318 | 2.3 | 2.2 | +74 |
| 85 and over | 421 | 2.9 | 1.9 | 357 | 2.6 | 0.9 | +64 |
| Total population | 14,551 | 100.0 | 100.0 | 13,550 | 100.0 | 100.0 | +1,001 |
Dominant groups
Analysis of the five year age groups of Birkdale in 2021 compared to Redland City Islands 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, 18.2% of the population was aged between 0 and 15, and 21.5% were aged 65 years and over, compared with 9.7% and 36.4% respectively for Redland City Islands.
The major differences between the age structure of Birkdale and Redland City Islands were:
- A larger percentage of persons aged 5 to 9 (6.3% compared to 3.0%)
- A smaller percentage of persons aged 65 to 69 (6.1% compared to 12.3%)
- A smaller percentage of persons aged 60 to 64 (6.2% compared to 12.3%)
- A smaller percentage of persons aged 70 to 74 (5.6% compared to 11.5%)
Emerging groups
From 2011 to 2021, Birkdale's population increased by 1,001 people (7.4%). This represents an average annual population change of 0.72% per year over the period.
The largest changes in age structure in this area between 2011 and 2021 were in the age groups:
- 70 to 74 (+379 persons)
- 75 to 79 (+320 persons)
- 65 to 69 (+254 persons)
- 15 to 19 (-164 persons)
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