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LEARN MORE ABOUT .idIn 2021, the largest age group in Reservoir (Merrilands) was 35 to 39 year olds. The group that changed the most since 2001 was 80 to 84 year olds, increasing by 151 people.
The Age Structure of Reservoir (Merrilands) 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 (Merrilands)'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 (Merrilands)'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 (Merrilands) - Total females (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Preston Activity Area % | Number | % | Preston Activity Area % | 2001 to 2021 |
| 0 to 4 | 267 | 5.5 | 4.7 | 242 | 4.6 | 6.1 | +25 |
| 5 to 9 | 224 | 4.6 | 4.0 | 294 | 5.6 | 4.9 | -70 |
| 10 to 14 | 214 | 4.4 | 3.4 | 263 | 5.0 | 4.8 | -49 |
| 15 to 19 | 236 | 4.9 | 2.3 | 302 | 5.8 | 5.8 | -66 |
| 20 to 24 | 274 | 5.7 | 7.3 | 355 | 6.8 | 7.6 | -81 |
| 25 to 29 | 276 | 5.7 | 14.3 | 373 | 7.1 | 8.7 | -97 |
| 30 to 34 | 278 | 5.8 | 13.9 | 391 | 7.5 | 10.8 | -113 |
| 35 to 39 | 331 | 6.9 | 10.8 | 317 | 6.0 | 8.6 | +14 |
| 40 to 44 | 279 | 5.8 | 7.4 | 300 | 5.7 | 6.7 | -21 |
| 45 to 49 | 287 | 6.0 | 6.0 | 298 | 5.7 | 5.4 | -11 |
| 50 to 54 | 308 | 6.4 | 5.3 | 392 | 7.5 | 6.2 | -84 |
| 55 to 59 | 271 | 5.6 | 4.1 | 352 | 6.7 | 5.0 | -81 |
| 60 to 64 | 241 | 5.0 | 4.6 | 371 | 7.1 | 4.0 | -130 |
| 65 to 69 | 242 | 5.0 | 3.3 | 314 | 6.0 | 3.8 | -72 |
| 70 to 74 | 314 | 6.5 | 3.1 | 267 | 5.1 | 4.0 | +47 |
| 75 to 79 | 275 | 5.7 | 2.1 | 176 | 3.4 | 3.3 | +99 |
| 80 to 84 | 254 | 5.3 | 1.5 | 103 | 2.0 | 2.2 | +151 |
| 85 and over | 248 | 5.1 | 1.9 | 138 | 2.6 | 2.1 | +110 |
| Total population | 4,819 | 100.0 | 100.0 | 5,248 | 100.0 | 100.0 | -429 |
Dominant groups
Analysis of the female five year age groups of Reservoir (Merrilands) in 2021 compared to Preston Activity Area shows that there was a higher proportion of females in the younger age groups (under 15) as well as a higher proportion of females in the older age groups (65+).
Overall, 14.6% of the female population was aged between 0 and 15, and 27.7% were aged 65 years and over, compared with 12.1% and 11.8% respectively for Preston Activity Area.
The major differences between the female age structure of Reservoir (Merrilands) and Preston Activity Area were:
- A larger percentage of females aged 80 to 84 (5.3% compared to 1.5%)
- A smaller percentage of females aged 25 to 29 (5.7% compared to 14.3%)
- A smaller percentage of females aged 30 to 34 (5.8% compared to 13.9%)
- A smaller percentage of females aged 35 to 39 (6.9% compared to 10.8%)
Emerging groups
From 2001 to 2021, Reservoir (Merrilands)'s female population decreased by 429 people (8.2%). This represents an average annual population change of -0.43% per year over the period.
The largest changes in female age structure in this area between 2001 and 2021 were in the age groups:
- 80 to 84 (+151 females)
- 60 to 64 (-130 females)
- 30 to 34 (-113 females)
- 85 and over (+110 females)
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