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Sutherland Shire CouncilPopulation forecast


Population and age structure

Between 2016 and 2026, the age structure forecasts for Jannali indicate a 5.1% increase in population under working age, a 10.6% 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 Jannali 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
Jannali - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 44917.84766.84976.7+7
5 to 95208.24826.95086.8-12
10 to 143375.34596.64606.2+123
15 to 193505.54426.44305.8+81
20 to 243645.73835.54365.9+73
25 to 293745.94256.14566.1+82
30 to 344467.14756.84886.6+42
35 to 394356.95137.45357.2+100
40 to 445829.25127.45287.1-54
45 to 494697.44786.95146.9+45
50 to 544046.45237.54896.6+84
55 to 593445.44226.14315.8+87
60 to 642864.53444.94195.6+133
65 to 692183.42814.03364.5+118
70 to 741462.32243.22703.6+124
75 to 791502.41772.52273.1+77
80 to 841652.61422.01912.6+26
85 and over2423.81952.82002.7-42
Total persons6,323100.06,953100.07,417100.0+1,094
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, October 2017.

Key findings

In 2016, the dominant age structure for persons in Jannali was ages 40 to 44, which accounted for 9.2% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 10 to 14, which is expected to increase by 123 and account for 6.6% of the total persons.

The largest 5 year age group in 2026 is 50 to 54 years, with a total of 523 persons.

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