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LEARN MORE ABOUT .idIn 2021, the largest age group in Northern Territory was 30 to 34 year olds. The group that changed the most since 2016 was 45 to 49 year olds, decreasing by 944 people.
The Age Structure of Northern 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 Northern 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 Northern 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 | |||||||
|---|---|---|---|---|---|---|---|
| Northern Territory - Total males (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Victoria % | Number | % | Victoria % | 2016 to 2021 |
| 0 to 4 | 8,445 | 7.2 | 6.0 | 9,005 | 7.6 | 6.6 | -560 |
| 5 to 9 | 8,565 | 7.3 | 6.5 | 8,687 | 7.3 | 6.5 | -122 |
| 10 to 14 | 8,218 | 7.0 | 6.3 | 7,778 | 6.6 | 6.0 | +440 |
| 15 to 19 | 7,320 | 6.2 | 5.8 | 7,476 | 6.3 | 6.3 | -156 |
| 20 to 24 | 8,321 | 7.1 | 6.6 | 8,850 | 7.5 | 7.2 | -529 |
| 25 to 29 | 10,262 | 8.7 | 7.5 | 11,132 | 9.4 | 7.5 | -870 |
| 30 to 34 | 10,671 | 9.1 | 7.6 | 10,861 | 9.2 | 7.6 | -190 |
| 35 to 39 | 9,496 | 8.1 | 7.5 | 9,274 | 7.8 | 6.9 | +222 |
| 40 to 44 | 8,162 | 6.9 | 6.6 | 8,577 | 7.2 | 6.7 | -415 |
| 45 to 49 | 7,594 | 6.5 | 6.4 | 8,538 | 7.2 | 6.7 | -944 |
| 50 to 54 | 7,451 | 6.3 | 6.2 | 7,697 | 6.5 | 6.3 | -246 |
| 55 to 59 | 6,673 | 5.7 | 5.8 | 6,602 | 5.6 | 6.0 | +71 |
| 60 to 64 | 5,621 | 4.8 | 5.5 | 5,505 | 4.6 | 5.3 | +116 |
| 65 to 69 | 4,383 | 3.7 | 4.8 | 3,999 | 3.4 | 4.8 | +384 |
| 70 to 74 | 3,186 | 2.7 | 4.2 | 2,311 | 1.9 | 3.6 | +875 |
| 75 to 79 | 1,740 | 1.5 | 3.0 | 1,317 | 1.1 | 2.6 | +423 |
| 80 to 84 | 903 | 0.8 | 2.0 | 569 | 0.5 | 1.8 | +334 |
| 85 and over | 499 | 0.4 | 1.7 | 392 | 0.3 | 1.6 | +107 |
| Total population | 117,510 | 100.0 | 100.0 | 118,570 | 100.0 | 100.0 | -1,060 |
Dominant groups
Analysis of the male five year age groups of Northern Territory in 2021 compared to Victoria shows that there was a higher proportion of males in the younger age groups (under 15) and a lower proportion of males in the older age groups (65+).
Overall, 21.5% of the male population was aged between 0 and 15, and 9.1% were aged 65 years and over, compared with 18.8% and 15.7% respectively for Victoria.
The major differences between the male age structure of Northern Territory and Victoria were:
- A larger percentage of males aged 30 to 34 (9.1% compared to 7.6%)
- A smaller percentage of males aged 70 to 74 (2.7% compared to 4.2%)
- A smaller percentage of males aged 75 to 79 (1.5% compared to 3.0%)
- A smaller percentage of males aged 85 and over (0.4% compared to 1.7%)
Emerging groups
From 2016 to 2021, Northern Territory's male population decreased by 1,060 people (0.9%). This represents an average annual population change of -0.18% per year over the period.
The largest changes in male age structure in this area between 2016 and 2021 were in the age groups:
- 45 to 49 (-944 males)
- 70 to 74 (+875 males)
- 25 to 29 (-870 males)
- 0 to 4 (-560 males)
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