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LEARN MORE ABOUT .idIn 2021, the largest age group in Lake Munmorah - Chain Valley Bay was 70 to 74 year olds. The group that changed the most since 2001 was 75 to 79 year olds, increasing by 582 people.
The Age Structure of Lake Munmorah - Chain Valley Bay provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Lake Munmorah - Chain Valley Bay'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 Lake Munmorah - Chain Valley Bay'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 | |||||||
|---|---|---|---|---|---|---|---|
| Lake Munmorah - Chain Valley Bay - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Tuggerah - Mardi % | Number | % | Tuggerah - Mardi % | 2001 to 2021 |
| 0 to 4 | 352 | 4.2 | 5.9 | 477 | 7.4 | 10.1 | -125 |
| 5 to 9 | 370 | 4.4 | 6.7 | 573 | 8.9 | 8.8 | -203 |
| 10 to 14 | 386 | 4.6 | 7.0 | 538 | 8.3 | 6.6 | -152 |
| 15 to 19 | 394 | 4.7 | 7.0 | 375 | 5.8 | 5.9 | +19 |
| 20 to 24 | 342 | 4.1 | 6.8 | 217 | 3.4 | 6.1 | +125 |
| 25 to 29 | 380 | 4.5 | 5.9 | 301 | 4.7 | 9.0 | +79 |
| 30 to 34 | 345 | 4.1 | 6.9 | 479 | 7.4 | 8.6 | -134 |
| 35 to 39 | 373 | 4.4 | 6.0 | 568 | 8.8 | 8.9 | -195 |
| 40 to 44 | 326 | 3.9 | 6.1 | 515 | 8.0 | 6.6 | -190 |
| 45 to 49 | 329 | 3.9 | 6.8 | 307 | 4.8 | 5.7 | +21 |
| 50 to 54 | 472 | 5.6 | 7.4 | 334 | 5.2 | 4.9 | +138 |
| 55 to 59 | 545 | 6.5 | 6.4 | 326 | 5.1 | 4.4 | +219 |
| 60 to 64 | 612 | 7.3 | 5.7 | 382 | 5.9 | 3.6 | +230 |
| 65 to 69 | 717 | 8.5 | 4.4 | 410 | 6.3 | 2.9 | +307 |
| 70 to 74 | 831 | 9.9 | 4.3 | 324 | 5.0 | 2.7 | +507 |
| 75 to 79 | 774 | 9.2 | 2.9 | 191 | 3.0 | 2.5 | +582 |
| 80 to 84 | 511 | 6.1 | 2.4 | 91 | 1.4 | 1.5 | +419 |
| 85 and over | 345 | 4.1 | 1.4 | 46 | 0.7 | 1.2 | +299 |
| Total population | 8,404 | 100.0 | 100.0 | 6,458 | 100.0 | 100.0 | +1,945 |
Dominant groups
Analysis of the five year age groups of Lake Munmorah - Chain Valley Bay in 2021 compared to Tuggerah - Mardi 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, 13.2% of the population was aged between 0 and 15, and 37.8% were aged 65 years and over, compared with 19.6% and 15.4% respectively for Tuggerah - Mardi.
The major differences between the age structure of Lake Munmorah - Chain Valley Bay and Tuggerah - Mardi were:
- A larger percentage of persons aged 75 to 79 (9.2% compared to 2.9%)
- A larger percentage of persons aged 70 to 74 (9.9% compared to 4.3%)
- A larger percentage of persons aged 65 to 69 (8.5% compared to 4.4%)
- A larger percentage of persons aged 80 to 84 (6.1% compared to 2.4%)
Emerging groups
From 2001 to 2021, Lake Munmorah - Chain Valley Bay's population increased by 1,946 people (30.1%). This represents an average annual population change of 1.33% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 75 to 79 (+582 persons)
- 70 to 74 (+507 persons)
- 80 to 84 (+419 persons)
- 65 to 69 (+307 persons)
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