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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 2016 was 35 to 39 year olds, increasing by 1,154 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 females (Usual residence) | 2021 | 2016 | Change | ||||
| Five year age groups (years) | Number | % | Litchfield Council LGA % | Number | % | Litchfield Council LGA % | 2016 to 2021 |
| 0 to 4 | 7,774 | 6.8 | 5.6 | 8,623 | 7.8 | 6.8 | -849 |
| 5 to 9 | 8,276 | 7.2 | 7.1 | 8,129 | 7.4 | 7.5 | +147 |
| 10 to 14 | 7,616 | 6.6 | 7.1 | 7,251 | 6.6 | 6.8 | +365 |
| 15 to 19 | 6,857 | 6.0 | 6.0 | 6,597 | 6.0 | 5.9 | +260 |
| 20 to 24 | 7,473 | 6.5 | 5.0 | 7,795 | 7.1 | 5.7 | -322 |
| 25 to 29 | 10,674 | 9.3 | 5.8 | 10,571 | 9.6 | 6.1 | +103 |
| 30 to 34 | 11,289 | 9.8 | 6.6 | 10,471 | 9.5 | 7.2 | +818 |
| 35 to 39 | 9,900 | 8.6 | 7.6 | 8,746 | 7.9 | 7.7 | +1,154 |
| 40 to 44 | 8,259 | 7.2 | 7.2 | 8,039 | 7.3 | 8.0 | +220 |
| 45 to 49 | 7,460 | 6.5 | 7.6 | 7,920 | 7.2 | 9.5 | -460 |
| 50 to 54 | 7,459 | 6.5 | 8.8 | 7,155 | 6.5 | 8.0 | +304 |
| 55 to 59 | 6,402 | 5.6 | 7.7 | 6,289 | 5.7 | 7.5 | +113 |
| 60 to 64 | 5,528 | 4.8 | 6.3 | 4,899 | 4.4 | 5.2 | +629 |
| 65 to 69 | 4,058 | 3.5 | 4.8 | 3,364 | 3.1 | 3.9 | +694 |
| 70 to 74 | 2,873 | 2.5 | 3.6 | 1,985 | 1.8 | 2.3 | +888 |
| 75 to 79 | 1,544 | 1.3 | 1.8 | 1,197 | 1.1 | 0.9 | +347 |
| 80 to 84 | 974 | 0.8 | 0.8 | 688 | 0.6 | 0.5 | +286 |
| 85 and over | 665 | 0.6 | 0.6 | 545 | 0.5 | 0.3 | +120 |
| Total population | 115,081 | 100.0 | 100.0 | 110,264 | 100.0 | 100.0 | +4,817 |
Dominant groups
Analysis of the female five year age groups of the RDA Northern Territory in 2021 compared to Litchfield Council LGA shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 20.6% of the female population was aged between 0 and 15, and 8.8% were aged 65 years and over, compared with 19.8% and 11.6% respectively for Litchfield Council LGA.
The major differences between the female age structure of the RDA Northern Territory and Litchfield Council LGA were:
- A larger percentage of females aged 25 to 29 (9.3% compared to 5.8%)
- A larger percentage of females aged 30 to 34 (9.8% compared to 6.6%)
- A smaller percentage of females aged 50 to 54 (6.5% compared to 8.8%)
- A smaller percentage of females aged 55 to 59 (5.6% compared to 7.7%)
Emerging groups
From 2016 to 2021, RDA Northern Territory's female population increased by 4,817 people (4.4%). This represents an average annual population change of 0.86% per year over the period.
The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:
- 35 to 39 (+1,154 females)
- 70 to 74 (+888 females)
- 0 to 4 (-849 females)
- 30 to 34 (+818 females)
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