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LEARN MORE ABOUT .idIn 2021, the largest age group in Mount Martha was 50 to 54 year olds. The group that changed the most since 2001 was 50 to 54 year olds, increasing by 815 people.
The Age Structure of Mount Martha provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Mount Martha'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 Mount Martha'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 | |||||||
|---|---|---|---|---|---|---|---|
| Mount Martha - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Mornington Peninsula Shire % | Number | % | Mornington Peninsula Shire % | 2001 to 2021 |
| 0 to 4 | 913 | 4.6 | 4.7 | 920 | 7.6 | 6.0 | -8 |
| 5 to 9 | 1,312 | 6.6 | 5.5 | 913 | 7.5 | 7.0 | +399 |
| 10 to 14 | 1,590 | 8.0 | 6.1 | 972 | 8.0 | 7.3 | +618 |
| 15 to 19 | 1,412 | 7.1 | 5.7 | 671 | 5.5 | 6.6 | +740 |
| 20 to 24 | 860 | 4.3 | 4.5 | 458 | 3.8 | 4.8 | +402 |
| 25 to 29 | 507 | 2.6 | 4.0 | 637 | 5.3 | 5.1 | -131 |
| 30 to 34 | 640 | 3.2 | 4.6 | 884 | 7.3 | 6.1 | -245 |
| 35 to 39 | 984 | 5.0 | 5.2 | 916 | 7.6 | 6.8 | +67 |
| 40 to 44 | 1,267 | 6.4 | 5.4 | 1,042 | 8.6 | 7.4 | +225 |
| 45 to 49 | 1,528 | 7.7 | 6.4 | 801 | 6.6 | 6.6 | +727 |
| 50 to 54 | 1,606 | 8.1 | 7.0 | 791 | 6.5 | 6.6 | +815 |
| 55 to 59 | 1,263 | 6.4 | 6.7 | 683 | 5.6 | 5.9 | +580 |
| 60 to 64 | 1,248 | 6.3 | 7.0 | 557 | 4.6 | 5.3 | +690 |
| 65 to 69 | 1,172 | 5.9 | 7.1 | 524 | 4.3 | 5.0 | +648 |
| 70 to 74 | 1,275 | 6.4 | 7.2 | 529 | 4.4 | 5.0 | +745 |
| 75 to 79 | 999 | 5.0 | 5.7 | 371 | 3.1 | 4.1 | +628 |
| 80 to 84 | 659 | 3.3 | 3.7 | 267 | 2.2 | 2.6 | +391 |
| 85 and over | 618 | 3.1 | 3.6 | 168 | 1.4 | 1.9 | +450 |
| Total population | 19,853 | 100.0 | 100.0 | 12,112 | 100.0 | 100.0 | +7,741 |
Dominant groups
Analysis of the five year age groups of Mount Martha in 2021 compared to Mornington Peninsula Shire 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, 19.2% of the population was aged between 0 and 15, and 23.8% were aged 65 years and over, compared with 16.3% and 27.2% respectively for Mornington Peninsula Shire.
The major differences between the age structure of Mount Martha and Mornington Peninsula Shire were:
- A larger percentage of persons aged 10 to 14 (8.0% compared to 6.1%)
- A larger percentage of persons aged 15 to 19 (7.1% compared to 5.7%)
- A smaller percentage of persons aged 30 to 34 (3.2% compared to 4.6%)
- A smaller percentage of persons aged 25 to 29 (2.6% compared to 4.0%)
Emerging groups
From 2001 to 2021, Mount Martha's population increased by 7,741 people (63.9%). This represents an average annual population change of 2.5% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 50 to 54 (+815 persons)
- 70 to 74 (+745 persons)
- 15 to 19 (+740 persons)
- 45 to 49 (+727 persons)
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