Powered by .id (informed decisions) for RDA Northern Territory
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LEARN MORE ABOUT .idIn 2021, the largest age group in the RDA Northern Territory was 30 to 34 year olds. The group that changed the most since 1991 was 55 to 59 year olds, increasing by 10,155 people.
The Age Structure of the RDA 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 the RDA 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 the RDA 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 | |||||||
|---|---|---|---|---|---|---|---|
| RDA Northern Territory - Total persons (Enumerated) | 2021 | 1991 | Change | ||||
| Five year age groups (years) | Number | % | Greater Darwin % | Number | % | Greater Darwin % | 1991 to 2021 |
| 0 to 4 | 16,771 | 6.4 | 6.5 | 16,552 | 9.4 | 8.6 | +219 |
| 5 to 9 | 17,548 | 6.7 | 6.6 | 15,736 | 8.9 | 8.1 | +1,812 |
| 10 to 14 | 16,264 | 6.2 | 6.1 | 14,119 | 8.0 | 8.1 | +2,145 |
| 15 to 19 | 14,425 | 5.5 | 5.1 | 13,079 | 7.4 | 7.5 | +1,346 |
| 20 to 24 | 16,840 | 6.4 | 6.2 | 16,946 | 9.6 | 9.2 | -106 |
| 25 to 29 | 22,681 | 8.7 | 8.7 | 17,906 | 10.2 | 9.8 | +4,775 |
| 30 to 34 | 23,531 | 9.0 | 9.2 | 16,972 | 9.6 | 9.8 | +6,559 |
| 35 to 39 | 20,920 | 8.0 | 8.2 | 14,695 | 8.4 | 9.0 | +6,225 |
| 40 to 44 | 17,721 | 6.8 | 7.1 | 13,455 | 7.6 | 8.7 | +4,266 |
| 45 to 49 | 16,425 | 6.3 | 6.5 | 9,934 | 5.6 | 6.2 | +6,491 |
| 50 to 54 | 16,995 | 6.5 | 6.5 | 7,634 | 4.3 | 4.6 | +9,361 |
| 55 to 59 | 15,909 | 6.1 | 6.0 | 5,754 | 3.3 | 3.2 | +10,155 |
| 60 to 64 | 15,193 | 5.8 | 5.4 | 5,058 | 2.9 | 2.8 | +10,135 |
| 65 to 69 | 12,964 | 5.0 | 4.7 | 3,836 | 2.2 | 2.1 | +9,128 |
| 70 to 74 | 9,194 | 3.5 | 3.6 | 2,199 | 1.2 | 1.2 | +6,995 |
| 75 to 79 | 4,453 | 1.7 | 1.9 | 1,179 | 0.7 | 0.7 | +3,274 |
| 80 to 84 | 2,218 | 0.8 | 1.0 | 552 | 0.3 | 0.3 | +1,666 |
| 85 and over | 1,252 | 0.5 | 0.6 | 323 | 0.2 | 0.2 | +929 |
| Total population | 261,304 | 100.0 | 100.0 | 175,929 | 100.0 | 100.0 | +85,375 |
Dominant groups
Analysis of the five year age groups of the RDA Northern Territory in 2021 compared to Greater Darwin shows that there was a similar proportion of people in the younger age groups (under 15) as well as a similar proportion of people in the older age groups (65+).
Overall, 19.4% of the population was aged between 0 and 15, and 11.5% were aged 65 years and over, compared with 19.2% and 11.7% respectively for Greater Darwin.
There were no major differences between the RDA Northern Territory and Greater Darwin in 2021.
Emerging groups
From 1991 to 2021, RDA Northern Territory's population increased by 85,375 people (48.5%). This represents an average annual population change of 1.33% per year over the period.
The largest changes in age structure in this area between 1991 and 2021 were in the age groups:
- 55 to 59 (+10,155 persons)
- 60 to 64 (+10,135 persons)
- 50 to 54 (+9,361 persons)
- 65 to 69 (+9,128 persons)
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