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LEARN MORE ABOUT .idIn 2021, the largest age group in the Wonthaggi District was 70 to 74 year olds. The group that changed the most since 2001 was 70 to 74 year olds, increasing by 273 people.
The Age Structure of the Wonthaggi District provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the Wonthaggi District'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 the Wonthaggi District'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 | |||||||
|---|---|---|---|---|---|---|---|
| Wonthaggi District - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Waterline (Westernport Townships) % | Number | % | Waterline (Westernport Townships) % | 2001 to 2021 |
| 0 to 4 | 386 | 4.2 | 5.0 | 439 | 5.8 | 5.7 | -53 |
| 5 to 9 | 457 | 5.0 | 4.8 | 563 | 7.4 | 5.6 | -107 |
| 10 to 14 | 498 | 5.5 | 4.7 | 519 | 6.8 | 6.7 | -21 |
| 15 to 19 | 461 | 5.1 | 3.9 | 537 | 7.1 | 4.6 | -77 |
| 20 to 24 | 418 | 4.6 | 3.7 | 330 | 4.3 | 3.0 | +88 |
| 25 to 29 | 483 | 5.3 | 4.6 | 333 | 4.4 | 3.7 | +149 |
| 30 to 34 | 468 | 5.1 | 4.8 | 413 | 5.4 | 5.0 | +55 |
| 35 to 39 | 471 | 5.2 | 5.5 | 507 | 6.7 | 6.7 | -36 |
| 40 to 44 | 430 | 4.7 | 4.9 | 571 | 7.5 | 5.8 | -141 |
| 45 to 49 | 469 | 5.2 | 5.7 | 483 | 6.3 | 7.7 | -14 |
| 50 to 54 | 535 | 5.9 | 7.1 | 446 | 5.9 | 9.2 | +88 |
| 55 to 59 | 577 | 6.3 | 9.3 | 447 | 5.9 | 9.0 | +130 |
| 60 to 64 | 701 | 7.7 | 8.1 | 430 | 5.7 | 8.7 | +270 |
| 65 to 69 | 714 | 7.9 | 10.2 | 457 | 6.0 | 7.4 | +257 |
| 70 to 74 | 744 | 8.2 | 8.2 | 470 | 6.2 | 5.9 | +273 |
| 75 to 79 | 534 | 5.9 | 5.4 | 320 | 4.2 | 3.4 | +214 |
| 80 to 84 | 380 | 4.2 | 2.6 | 203 | 2.7 | 1.6 | +177 |
| 85 and over | 368 | 4.0 | 1.6 | 138 | 1.8 | 0.5 | +229 |
| Total population | 9,094 | 100.0 | 100.0 | 7,613 | 100.0 | 100.0 | +1,480 |
Dominant groups
Analysis of the five year age groups of the Wonthaggi District in 2021 compared to Waterline (Westernport Townships) shows that there was a similar proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 14.7% of the population was aged between 0 and 15, and 30.1% were aged 65 years and over, compared with 14.4% and 28.0% respectively for Waterline (Westernport Townships).
The major differences between the age structure of the Wonthaggi District and Waterline (Westernport Townships) were:
- A larger percentage of persons aged 85 and over (4.0% compared to 1.6%)
- A larger percentage of persons aged 80 to 84 (4.2% compared to 2.6%)
- A smaller percentage of persons aged 55 to 59 (6.3% compared to 9.3%)
- A smaller percentage of persons aged 65 to 69 (7.9% compared to 10.2%)
Emerging groups
From 2001 to 2021, Wonthaggi District's population increased by 1,481 people (19.5%). This represents an average annual population change of 0.89% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 70 to 74 (+273 persons)
- 60 to 64 (+270 persons)
- 65 to 69 (+257 persons)
- 85 and over (+229 persons)
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