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Alexandrina CouncilPopulation forecast

Strathalbyn Town

Population and age structure

Between 2016 and 2021, the age structure forecasts for Strathalbyn Town indicate a 2.8% increase in population under working age, a 17.4% increase in population of retirement age, and a 4.2% 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 Strathalbyn Town 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 persons201620212026Change between 2016 and 2026
Age group (years)Number%Number%Number%Number
0 to 43455.83225.13515.1+5
5 to 93926.63886.14035.8+10
10 to 143536.04106.54346.3+81
15 to 193576.03465.53995.8+42
20 to 242754.72824.52774.0+1
25 to 293275.52884.52974.3-31
30 to 343055.23475.53344.8+29
35 to 392935.03475.53985.7+105
40 to 443465.93515.64146.0+68
45 to 493766.43745.93975.7+22
50 to 543736.33926.24095.9+36
55 to 593806.43926.24236.1+43
60 to 643676.24246.74536.5+86
65 to 694257.24286.84947.1+69
70 to 743345.64417.04616.6+127
75 to 792784.73475.54456.4+167
80 to 841853.12303.62834.1+98
85 and over1983.42213.52553.7+57
Total persons5,910100.06,331100.06,927100.0+1,017
Source: Population and household forecasts, 2016 to 2041, prepared by .id (informed decisions), April 2018.

Key findings

In 2016, the dominant age structure for persons in Strathalbyn Town was ages 65 to 69, which accounted for 7.2% of the total persons.

The largest increase in persons between 2016 and 2021 is forecast to be in ages 70 to 74, which is expected to increase by 108 and account for 7.0% of the total persons.

The largest 5 year age group in 2021 is 70 to 74 years, with a total of 441 persons.

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