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LEARN MORE ABOUT .idIn 2021, the largest age group in Tirhatuan Ward was 55 to 59 year olds. The group that changed the most since 2006 was 70 to 74 year olds, increasing by 483 people.
The Age Structure of Tirhatuan Ward provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Tirhatuan Ward'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 Tirhatuan Ward'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 | |||||||
|---|---|---|---|---|---|---|---|
| Tirhatuan Ward - Total persons (Usual residence) | 2021 | 2006 | Change | ||||
| Five year age groups (years) | Number | % | City of Knox % | Number | % | City of Knox % | 2006 to 2021 |
| 0 to 4 | 746 | 4.6 | 5.3 | 870 | 5.6 | 6.1 | -125 |
| 5 to 9 | 873 | 5.4 | 5.9 | 1,055 | 6.8 | 6.8 | -183 |
| 10 to 14 | 967 | 6.0 | 5.8 | 1,290 | 8.3 | 7.5 | -323 |
| 15 to 19 | 993 | 6.2 | 5.9 | 1,377 | 8.9 | 7.8 | -384 |
| 20 to 24 | 1,113 | 6.9 | 6.1 | 1,098 | 7.1 | 6.9 | +14 |
| 25 to 29 | 1,057 | 6.5 | 6.0 | 950 | 6.1 | 6.0 | +107 |
| 30 to 34 | 960 | 5.9 | 6.7 | 1,031 | 6.6 | 6.7 | -71 |
| 35 to 39 | 1,092 | 6.8 | 7.2 | 1,139 | 7.3 | 7.6 | -48 |
| 40 to 44 | 1,088 | 6.7 | 6.8 | 1,264 | 8.1 | 7.8 | -176 |
| 45 to 49 | 1,149 | 7.1 | 6.7 | 1,328 | 8.6 | 7.9 | -180 |
| 50 to 54 | 1,089 | 6.7 | 6.8 | 1,169 | 7.5 | 7.3 | -81 |
| 55 to 59 | 1,191 | 7.4 | 6.7 | 1,012 | 6.5 | 6.5 | +178 |
| 60 to 64 | 1,093 | 6.8 | 6.2 | 673 | 4.3 | 4.6 | +419 |
| 65 to 69 | 878 | 5.4 | 5.4 | 441 | 2.8 | 3.3 | +437 |
| 70 to 74 | 763 | 4.7 | 4.6 | 279 | 1.8 | 2.4 | +483 |
| 75 to 79 | 493 | 3.1 | 3.2 | 221 | 1.4 | 2.0 | +272 |
| 80 to 84 | 341 | 2.1 | 2.4 | 201 | 1.3 | 1.6 | +140 |
| 85 and over | 254 | 1.6 | 2.2 | 115 | 0.7 | 1.4 | +138 |
| Total population | 16,140 | 100.0 | 100.0 | 15,522 | 100.0 | 100.0 | +618 |
Dominant groups
Analysis of the five year age groups of Tirhatuan Ward in 2021 compared to the City of Knox 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, 16.0% of the population was aged between 0 and 15, and 16.9% were aged 65 years and over, compared with 17.0% and 17.9% respectively for the City of Knox.
The major differences between the age structure of Tirhatuan Ward and the City of Knox were:
- A larger percentage of persons aged 20 to 24 (6.9% compared to 6.1%)
- A larger percentage of persons aged 55 to 59 (7.4% compared to 6.7%)
- A smaller percentage of persons aged 30 to 34 (5.9% compared to 6.7%)
- A smaller percentage of persons aged 0 to 4 (4.6% compared to 5.3%)
Emerging groups
From 2006 to 2021, Tirhatuan Ward's population increased by 618 people (4.0%). This represents an average annual population change of 0.26% per year over the period.
The largest changes in age structure in this area between 2006 and 2021 were in the age groups:
- 70 to 74 (+483 persons)
- 65 to 69 (+437 persons)
- 60 to 64 (+419 persons)
- 15 to 19 (-384 persons)
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