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LEARN MORE ABOUT .idIn 2021, the largest age group in Baldivis (South) was 30 to 34 year olds. The group that changed the most since 2001 was 30 to 34 year olds, increasing by 1,151 people.
The Age Structure of Baldivis (South) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Baldivis (South)'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 Baldivis (South)'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 | |||||||
|---|---|---|---|---|---|---|---|
| Baldivis (South) - Total females (Enumerated) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | City of Rockingham % | Number | % | City of Rockingham % | 2001 to 2021 |
| 0 to 4 | 1,069 | 8.0 | 6.4 | 89 | 7.8 | 7.3 | +979 |
| 5 to 9 | 1,231 | 9.2 | 7.2 | 119 | 10.4 | 8.3 | +1,112 |
| 10 to 14 | 1,215 | 9.1 | 7.5 | 94 | 8.3 | 8.3 | +1,120 |
| 15 to 19 | 887 | 6.7 | 6.3 | 85 | 7.4 | 7.1 | +802 |
| 20 to 24 | 746 | 5.6 | 5.7 | 50 | 4.4 | 5.3 | +696 |
| 25 to 29 | 896 | 6.7 | 6.3 | 63 | 5.5 | 6.4 | +833 |
| 30 to 34 | 1,268 | 9.5 | 7.4 | 116 | 10.2 | 7.7 | +1,151 |
| 35 to 39 | 1,185 | 8.9 | 7.4 | 111 | 9.7 | 8.5 | +1,074 |
| 40 to 44 | 990 | 7.4 | 6.6 | 97 | 8.5 | 7.7 | +893 |
| 45 to 49 | 878 | 6.6 | 6.7 | 91 | 8.0 | 6.5 | +786 |
| 50 to 54 | 744 | 5.6 | 6.6 | 74 | 6.5 | 5.7 | +670 |
| 55 to 59 | 612 | 4.6 | 6.1 | 61 | 5.3 | 4.6 | +551 |
| 60 to 64 | 446 | 3.3 | 5.1 | 40 | 3.5 | 4.2 | +406 |
| 65 to 69 | 381 | 2.9 | 4.4 | 26 | 2.3 | 3.6 | +355 |
| 70 to 74 | 334 | 2.5 | 3.8 | 8 | 0.7 | 3.4 | +325 |
| 75 to 79 | 258 | 1.9 | 2.8 | 12 | 1.1 | 2.4 | +245 |
| 80 to 84 | 125 | 0.9 | 2.0 | 2 | 0.2 | 1.6 | +123 |
| 85 and over | 72 | 0.5 | 1.8 | 2 | 0.2 | 1.2 | +70 |
| Total population | 13,337 | 100.0 | 100.0 | 1,147 | 100.0 | 100.0 | +12,189 |
Dominant groups
Analysis of the female five year age groups of Baldivis (South) in 2021 compared to the City of Rockingham shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 26.4% of the female population was aged between 0 and 15, and 8.8% were aged 65 years and over, compared with 21.1% and 14.8% respectively for the City of Rockingham.
The major differences between the female age structure of Baldivis (South) and the City of Rockingham were:
- A larger percentage of females aged 30 to 34 (9.5% compared to 7.4%)
- A larger percentage of females aged 5 to 9 (9.2% compared to 7.2%)
- A larger percentage of females aged 10 to 14 (9.1% compared to 7.5%)
- A smaller percentage of females aged 60 to 64 (3.3% compared to 5.1%)
Emerging groups
From 2001 to 2021, Baldivis (South)'s female population increased by 12,190 people (1062.8%). This represents an average annual population change of 13.05% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 30 to 34 (+1,151 females)
- 10 to 14 (+1,120 females)
- 5 to 9 (+1,112 females)
- 35 to 39 (+1,074 females)
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