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LEARN MORE ABOUT .idIn 2021, the largest age group in Reservoir was 30 to 34 year olds. The group that changed the most since 2011 was 30 to 34 year olds, increasing by 1,203 people.
The Age Structure of Reservoir provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Reservoir'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 Reservoir'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 | |||||||
|---|---|---|---|---|---|---|---|
| Reservoir - Total persons (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | Preston Activity Area % | Number | % | Preston Activity Area % | 2011 to 2021 |
| 0 to 4 | 3,099 | 6.1 | 4.9 | 2,979 | 6.4 | 6.6 | +120 |
| 5 to 9 | 2,587 | 5.1 | 4.2 | 2,291 | 5.0 | 4.5 | +295 |
| 10 to 14 | 2,258 | 4.4 | 3.6 | 2,059 | 4.4 | 3.7 | +199 |
| 15 to 19 | 2,096 | 4.1 | 2.7 | 2,226 | 4.8 | 3.7 | -130 |
| 20 to 24 | 3,139 | 6.2 | 6.9 | 3,325 | 7.2 | 10.1 | -186 |
| 25 to 29 | 4,407 | 8.7 | 13.6 | 4,182 | 9.0 | 12.7 | +225 |
| 30 to 34 | 4,978 | 9.8 | 14.1 | 3,775 | 8.2 | 10.2 | +1,203 |
| 35 to 39 | 4,480 | 8.8 | 11.2 | 3,530 | 7.6 | 9.5 | +950 |
| 40 to 44 | 3,503 | 6.9 | 7.7 | 3,283 | 7.1 | 8.1 | +220 |
| 45 to 49 | 3,235 | 6.4 | 6.1 | 2,791 | 6.0 | 5.9 | +443 |
| 50 to 54 | 3,167 | 6.2 | 5.5 | 2,700 | 5.8 | 6.4 | +466 |
| 55 to 59 | 2,739 | 5.4 | 4.2 | 2,237 | 4.8 | 3.6 | +501 |
| 60 to 64 | 2,423 | 4.8 | 4.2 | 2,240 | 4.8 | 3.8 | +183 |
| 65 to 69 | 2,070 | 4.1 | 3.4 | 1,994 | 4.3 | 3.5 | +75 |
| 70 to 74 | 1,863 | 3.7 | 2.9 | 1,813 | 3.9 | 2.9 | +49 |
| 75 to 79 | 1,617 | 3.2 | 1.7 | 1,825 | 3.9 | 2.2 | -209 |
| 80 to 84 | 1,419 | 2.8 | 1.5 | 1,631 | 3.5 | 1.7 | -213 |
| 85 and over | 1,701 | 3.3 | 1.5 | 1,406 | 3.0 | 1.0 | +294 |
| Total population | 50,781 | 100.0 | 100.0 | 46,296 | 100.0 | 100.0 | +4,485 |
Dominant groups
Analysis of the five year age groups of Reservoir in 2021 compared to Preston Activity Area shows that there was a higher proportion of people in the younger age groups (under 15) as well as a higher proportion of people in the older age groups (65+).
Overall, 15.6% of the population was aged between 0 and 15, and 17.1% were aged 65 years and over, compared with 12.7% and 11.0% respectively for Preston Activity Area.
The major differences between the age structure of Reservoir and Preston Activity Area were:
- A larger percentage of persons aged 85 and over (3.3% compared to 1.5%)
- A smaller percentage of persons aged 25 to 29 (8.7% compared to 13.6%)
- A smaller percentage of persons aged 30 to 34 (9.8% compared to 14.1%)
- A smaller percentage of persons aged 35 to 39 (8.8% compared to 11.2%)
Emerging groups
From 2011 to 2021, Reservoir's population increased by 4,485 people (9.7%). This represents an average annual population change of 0.93% 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 (+1,203 persons)
- 35 to 39 (+950 persons)
- 55 to 59 (+501 persons)
- 50 to 54 (+466 persons)
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