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Alexandrina CouncilPopulation forecast

Strathalbyn Town

Population and age structure

Between 2021 and 2026, the age structure forecasts for Strathalbyn Town indicate a 11.3% increase in population under working age, a 11.1% increase in population of retirement age, and a 11.4% increase in population 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
Strathalbyn Town - Total persons202120262041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 43365.23805.34395.0+103
5 to 93846.04245.94995.7+115
10 to 144106.44546.35386.1+128
15 to 193525.54055.74945.6+142
20 to 243004.73244.53884.4+88
25 to 293144.93675.14064.6+92
30 to 343685.73935.54525.2+84
35 to 393365.24195.84755.4+139
40 to 443134.93915.44885.6+175
45 to 493545.53675.15045.8+150
50 to 544086.34185.85296.0+121
55 to 593815.94516.35346.1+153
60 to 644547.14546.35576.4+102
65 to 694296.75097.15996.8+170
70 to 744627.24686.56107.0+148
75 to 793665.74396.15356.1+169
80 to 842654.12884.04194.8+154
85 and over2073.22173.02923.3+85
Total persons6,440100.07,168100.08,759100.0+2,318
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), February 2023.

Key findings

In 2021, the dominant age structure for persons in Strathalbyn Town was ages 70 to 74, which accounted for 7.2% of the total persons.

The largest increase in persons between 2021 and 2026 is forecast to be in ages 35 to 39, which is expected to increase by 83 and account for 5.8% of the total persons.

The largest 5 year age group in 2026 is 65 to 69 years, with a total of 509 persons.

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