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LEARN MORE ABOUT .idIn 2021, the largest age group in the City of Darwin LGA was 30 to 34 year olds. The group that changed the most since 2011 was 30 to 34 year olds, increasing by 1,850 people.
The Age Structure of the City of Darwin LGA 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 City of Darwin LGA'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 City of Darwin LGA'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 | |||||||
|---|---|---|---|---|---|---|---|
| City of Darwin LGA - Total persons (Usual residence) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | RDA Northern Territory % | Number | % | RDA Northern Territory % | 2011 to 2021 |
| 0 to 4 | 5,067 | 6.3 | 7.0 | 4,864 | 6.7 | 8.1 | +203 |
| 5 to 9 | 5,081 | 6.3 | 7.2 | 4,421 | 6.1 | 7.7 | +660 |
| 10 to 14 | 4,750 | 5.9 | 6.8 | 4,622 | 6.3 | 7.4 | +128 |
| 15 to 19 | 4,049 | 5.0 | 6.1 | 4,570 | 6.3 | 7.0 | -521 |
| 20 to 24 | 5,101 | 6.3 | 6.8 | 5,615 | 7.7 | 8.0 | -514 |
| 25 to 29 | 7,823 | 9.7 | 9.0 | 7,152 | 9.8 | 9.1 | +671 |
| 30 to 34 | 8,167 | 10.1 | 9.4 | 6,317 | 8.7 | 8.2 | +1,850 |
| 35 to 39 | 6,898 | 8.6 | 8.3 | 5,804 | 8.0 | 7.9 | +1,094 |
| 40 to 44 | 5,912 | 7.3 | 7.1 | 5,634 | 7.7 | 7.7 | +278 |
| 45 to 49 | 5,240 | 6.5 | 6.5 | 5,310 | 7.3 | 7.0 | -70 |
| 50 to 54 | 5,034 | 6.3 | 6.4 | 5,079 | 7.0 | 6.5 | -45 |
| 55 to 59 | 4,536 | 5.6 | 5.6 | 4,460 | 6.1 | 5.5 | +76 |
| 60 to 64 | 4,004 | 5.0 | 4.8 | 3,786 | 5.2 | 4.3 | +218 |
| 65 to 69 | 3,220 | 4.0 | 3.6 | 2,244 | 3.1 | 2.5 | +976 |
| 70 to 74 | 2,621 | 3.3 | 2.6 | 1,454 | 2.0 | 1.5 | +1,167 |
| 75 to 79 | 1,533 | 1.9 | 1.4 | 782 | 1.1 | 0.8 | +751 |
| 80 to 84 | 918 | 1.1 | 0.8 | 528 | 0.7 | 0.5 | +390 |
| 85 and over | 578 | 0.7 | 0.5 | 312 | 0.4 | 0.3 | +266 |
| Total population | 80,532 | 100.0 | 100.0 | 72,954 | 100.0 | 100.0 | +7,578 |
Dominant groups
Analysis of the five year age groups of the City of Darwin LGA in 2021 compared to the RDA Northern Territory shows that there was a lower proportion of people in the younger age groups (under 15) and a higher proportion of people in the older age groups (65+).
Overall, 18.5% of the population was aged between 0 and 15, and 11.0% were aged 65 years and over, compared with 21.0% and 8.9% respectively for the RDA Northern Territory.
The major differences between the age structure of the City of Darwin LGA and the RDA Northern Territory were:
- A larger percentage of persons aged 25 to 29 (9.7% compared to 9.0%)
- A smaller percentage of persons aged 15 to 19 (5.0% compared to 6.1%)
- A smaller percentage of persons aged 5 to 9 (6.3% compared to 7.2%)
- A smaller percentage of persons aged 10 to 14 (5.9% compared to 6.8%)
Emerging groups
From 2011 to 2021, City of Darwin LGA's population increased by 7,578 people (10.4%). This represents an average annual population change of 0.99% per year over the period.
The largest changes in age structure in this area between 2011 and 2021 were in the age groups:
- 30 to 34 (+1,850 persons)
- 70 to 74 (+1,167 persons)
- 35 to 39 (+1,094 persons)
- 65 to 69 (+976 persons)
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