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LEARN MORE ABOUT .idIn 2021, the largest age group in Cumberland Council area was 25 to 29 year olds. The group that changed the most since 2001 was 25 to 29 year olds, increasing by 8,856 people.
The Age Structure of Cumberland Council area provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Cumberland Council area'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 Cumberland Council area'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 | |||||||
|---|---|---|---|---|---|---|---|
| Cumberland Council area - Total persons (Usual residence) | 2021 | 2001 | Change | ||||
| Five year age groups (years) | Number | % | Mosman Council area % | Number | % | Mosman Council area % | 2001 to 2021 |
| 0 to 4 | 16,450 | 7.0 | 4.3 | 12,417 | 7.5 | 5.8 | +4,032 |
| 5 to 9 | 16,043 | 6.8 | 5.4 | 12,058 | 7.3 | 5.7 | +3,985 |
| 10 to 14 | 14,394 | 6.1 | 6.6 | 11,361 | 6.9 | 5.3 | +3,033 |
| 15 to 19 | 12,646 | 5.4 | 5.7 | 11,754 | 7.1 | 5.2 | +892 |
| 20 to 24 | 18,657 | 7.9 | 4.8 | 12,674 | 7.7 | 5.8 | +5,983 |
| 25 to 29 | 22,015 | 9.4 | 4.6 | 13,159 | 8.0 | 7.8 | +8,856 |
| 30 to 34 | 21,619 | 9.2 | 5.7 | 13,088 | 7.9 | 8.6 | +8,531 |
| 35 to 39 | 20,123 | 8.5 | 6.4 | 12,886 | 7.8 | 8.5 | +7,237 |
| 40 to 44 | 15,958 | 6.8 | 6.5 | 11,846 | 7.2 | 8.0 | +4,112 |
| 45 to 49 | 13,285 | 5.6 | 7.4 | 10,409 | 6.3 | 7.3 | +2,875 |
| 50 to 54 | 12,713 | 5.4 | 7.5 | 9,818 | 6.0 | 7.5 | +2,895 |
| 55 to 59 | 12,308 | 5.2 | 6.9 | 7,610 | 4.6 | 6.3 | +4,698 |
| 60 to 64 | 10,858 | 4.6 | 6.2 | 6,321 | 3.8 | 4.2 | +4,537 |
| 65 to 69 | 8,887 | 3.8 | 5.4 | 5,151 | 3.1 | 3.1 | +3,736 |
| 70 to 74 | 7,244 | 3.1 | 5.4 | 5,083 | 3.1 | 3.1 | +2,161 |
| 75 to 79 | 5,162 | 2.2 | 4.8 | 4,331 | 2.6 | 3.0 | +830 |
| 80 to 84 | 3,645 | 1.5 | 3.0 | 2,734 | 1.7 | 2.5 | +910 |
| 85 and over | 3,442 | 1.5 | 3.2 | 2,021 | 1.2 | 2.5 | +1,421 |
| Total population | 235,449 | 100.0 | 100.0 | 164,727 | 100.0 | 100.0 | +70,721 |
Dominant groups
Analysis of the five year age groups of Cumberland Council area in 2021 compared to Mosman Council area shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 19.9% of the population was aged between 0 and 15, and 12.1% were aged 65 years and over, compared with 16.3% and 21.9% respectively for Mosman Council area.
The major differences between the age structure of Cumberland Council area and Mosman Council area were:
- A larger percentage of persons aged 25 to 29 (9.4% compared to 4.6%)
- A larger percentage of persons aged 30 to 34 (9.2% compared to 5.7%)
- A larger percentage of persons aged 20 to 24 (7.9% compared to 4.8%)
- A larger percentage of persons aged 0 to 4 (7.0% compared to 4.3%)
Emerging groups
From 2001 to 2021, Cumberland Council area's population increased by 70,722 people (42.9%). This represents an average annual population change of 1.8% per year over the period.
The largest changes in age structure in this area between 2001 and 2021 were in the age groups:
- 25 to 29 (+8,856 persons)
- 30 to 34 (+8,531 persons)
- 35 to 39 (+7,237 persons)
- 20 to 24 (+5,983 persons)
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