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LEARN MORE ABOUT .idIn 2021, the largest age group in Jervis Bay Territory was 25 to 29 year olds. The group that changed the most since 2011 was 0 to 4 year olds, decreasing by 19 people.
The Age Structure of Jervis Bay Territory provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Jervis Bay Territory'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 Jervis Bay Territory'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 | |||||||
|---|---|---|---|---|---|---|---|
| Jervis Bay Territory - Total persons (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | Milton % | Number | % | Milton % | 2011 to 2021 |
| 0 to 4 | 13 | 3.0 | 5.0 | 32 | 7.4 | 3.4 | -19 |
| 5 to 9 | 16 | 3.6 | 5.3 | 32 | 7.4 | 5.0 | -16 |
| 10 to 14 | 24 | 5.5 | 5.1 | 34 | 7.9 | 6.7 | -10 |
| 15 to 19 | 46 | 10.5 | 4.7 | 31 | 7.2 | 5.2 | +15 |
| 20 to 24 | 52 | 11.8 | 2.7 | 59 | 13.7 | 2.3 | -7 |
| 25 to 29 | 58 | 13.2 | 3.0 | 56 | 13.0 | 1.9 | +2 |
| 30 to 34 | 43 | 9.8 | 3.6 | 30 | 7.0 | 3.4 | +13 |
| 35 to 39 | 31 | 7.0 | 5.4 | 30 | 7.0 | 5.2 | +1 |
| 40 to 44 | 15 | 3.4 | 4.8 | 27 | 6.3 | 6.2 | -12 |
| 45 to 49 | 31 | 7.0 | 4.3 | 29 | 6.7 | 6.2 | +2 |
| 50 to 54 | 27 | 6.1 | 5.9 | 28 | 6.5 | 5.8 | -1 |
| 55 to 59 | 21 | 4.8 | 6.0 | 13 | 3.0 | 7.4 | +8 |
| 60 to 64 | 12 | 2.7 | 8.4 | 10 | 2.3 | 6.8 | +2 |
| 65 to 69 | 21 | 4.8 | 8.7 | 13 | 3.0 | 7.1 | +8 |
| 70 to 74 | 10 | 2.3 | 8.7 | 0 | -- | 5.2 | +10 |
| 75 to 79 | 13 | 3.0 | 5.8 | 4 | 0.9 | 6.0 | +9 |
| 80 to 84 | 7 | 1.6 | 4.7 | 3 | 0.7 | 6.7 | +4 |
| 85 and over | 0 | -- | 7.9 | 0 | -- | 9.6 | 0 |
| Total population | 440 | 100.0 | 100.0 | 431 | 100.0 | 100.0 | +9 |
Dominant groups
Analysis of the five year age groups of Jervis Bay Territory in 2021 compared to Milton shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).
Overall, 12.0% of the population was aged between 0 and 15, and 11.6% were aged 65 years and over, compared with 15.4% and 35.8% respectively for Milton.
The major differences between the age structure of Jervis Bay Territory and Milton were:
- A larger percentage of persons aged 25 to 29 (13.2% compared to 3.0%)
- A larger percentage of persons aged 20 to 24 (11.8% compared to 2.7%)
- A smaller percentage of persons aged 85 and over (0.0% compared to 7.9%)
- A smaller percentage of persons aged 70 to 74 (2.3% compared to 8.7%)
Emerging groups
From 2011 to 2021, Jervis Bay Territory's population increased by 9 people (2.1%). This represents an average annual population change of 0.21% per year over the period.
There were no major differences in Jervis Bay Territory between 2011 and 2021.
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