Powered by .id (informed decisions) for Alexandrina Council
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LEARN MORE ABOUT .idBetween 2021 and 2031, the age structure forecasts for Alexandrina Council indicate a 21.8% increase in females under working age, a 29.7% increase in females of retirement age, and a 12.8% increase in females of working age.
Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.
The forecast age groups of Alexandrina Council is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.
| Forecast age structure - 5 year age groups | |||||||
|---|---|---|---|---|---|---|---|
| Alexandrina Council - Total females | 2021 | 2031 | 2046 | Change between 2021 and 2046 | |||
| Age group (years) | Number | % | Number | % | Number | % | Number |
| 0 to 4 | 544 | 3.7 | 803 | 4.6 | 898 | 4.5 | +354 |
| 5 to 9 | 688 | 4.7 | 845 | 4.8 | 956 | 4.8 | +269 |
| 10 to 14 | 823 | 5.6 | 854 | 4.8 | 1,009 | 5.1 | +186 |
| 15 to 19 | 699 | 4.7 | 850 | 4.8 | 929 | 4.7 | +230 |
| 20 to 24 | 526 | 3.6 | 806 | 4.6 | 832 | 4.2 | +306 |
| 25 to 29 | 566 | 3.8 | 756 | 4.3 | 837 | 4.2 | +271 |
| 30 to 34 | 623 | 4.2 | 871 | 4.9 | 992 | 5.0 | +369 |
| 35 to 39 | 672 | 4.6 | 1,048 | 6.0 | 1,166 | 5.9 | +494 |
| 40 to 44 | 712 | 4.8 | 923 | 5.2 | 1,058 | 5.3 | +347 |
| 45 to 49 | 841 | 5.7 | 769 | 4.4 | 989 | 5.0 | +148 |
| 50 to 54 | 889 | 6.0 | 789 | 4.5 | 1,064 | 5.4 | +174 |
| 55 to 59 | 1,073 | 7.3 | 1,015 | 5.8 | 1,110 | 5.6 | +38 |
| 60 to 64 | 1,286 | 8.7 | 1,067 | 6.1 | 1,068 | 5.4 | -218 |
| 65 to 69 | 1,398 | 9.5 | 1,271 | 7.2 | 1,149 | 5.8 | -249 |
| 70 to 74 | 1,360 | 9.2 | 1,471 | 8.4 | 1,316 | 6.6 | -44 |
| 75 to 79 | 919 | 6.2 | 1,399 | 7.9 | 1,375 | 6.9 | +456 |
| 80 to 84 | 600 | 4.1 | 1,117 | 6.3 | 1,225 | 6.2 | +625 |
| 85 and over | 510 | 3.5 | 949 | 5.4 | 1,866 | 9.4 | +1,356 |
| Total persons | 14,729 | 100.0 | 17,605 | 100.0 | 19,842 | 100.0 | +5,113 |
Key findings
In 2021, the dominant age structure for females in Alexandrina Council was ages 65 to 69, which accounted for 9.5% of the total females.
The largest increase in females between 2021 and 2031 is forecast to be in ages 80 to 84, which is expected to increase by 517 and account for 6.3% of the total females.
The largest female 5 year age group in 2031 is 70 to 74 years, with a total of 1,471 females.
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