Sutherland Shire CouncilPopulation forecast
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Bonnet Bay

Population and age structure

Between 2016 and 2026, the age structure forecasts for Bonnet Bay indicate a 4.1% decrease in population under working age, a 24.9% increase in population of retirement age, and a 8.9% decrease 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 Sutherland Shire 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
Bonnet Bay - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 41395.81265.31295.5-11
5 to 91516.31496.31496.3-2
10 to 141697.01657.01636.9-6
15 to 191606.61626.91637.0+3
20 to 241446.01355.71335.7-11
25 to 29903.8883.7913.90
30 to 34933.9964.1964.1+3
35 to 391486.21265.41295.5-19
40 to 441887.81446.11476.3-41
45 to 491747.21576.71506.4-24
50 to 541596.61797.61556.6-3
55 to 591978.21657.01566.7-41
60 to 641747.21395.91516.4-22
65 to 691817.51556.61365.8-44
70 to 741305.41395.91195.1-11
75 to 79391.61295.51205.1+81
80 to 84421.7763.2913.9+49
85 and over291.2271.2682.9+39
Total persons2,407100.02,358100.02,346100.0-60

Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, October 2017.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 68 Forecast persons aged 80-84,  2036: 91 Forecast persons aged 75-79,  2036: 120 Forecast persons aged 70-74,  2036: 119 Forecast persons aged 65-69,  2036: 136 Forecast persons aged 60-64,  2036: 151 Forecast persons aged 55-59,  2036: 156 Forecast persons aged 50-54,  2036: 155 Forecast persons aged 45-49,  2036: 150 Forecast persons aged 40-44,  2036: 147 Forecast persons aged 35-39,  2036: 129 Forecast persons aged 30-34,  2036: 96 Forecast persons aged 25-29,  2036: 91 Forecast persons aged 20-24,  2036: 133 Forecast persons aged 15-19,  2036: 163 Forecast persons aged 10-14,  2036: 163 Forecast persons aged 5-9,  2036: 149 Forecast persons aged 0-4,  2036: 129 Forecast persons aged 85+,  2026: 27 Forecast persons aged 80-84,  2026: 76 Forecast persons aged 75-79,  2026: 129 Forecast persons aged 70-74,  2026: 139 Forecast persons aged 65-69,  2026: 155 Forecast persons aged 60-64,  2026: 139 Forecast persons aged 55-59,  2026: 165 Forecast persons aged 50-54,  2026: 179 Forecast persons aged 45-49,  2026: 157 Forecast persons aged 40-44,  2026: 144 Forecast persons aged 35-39,  2026: 126 Forecast persons aged 30-34,  2026: 96 Forecast persons aged 25-29,  2026: 88 Forecast persons aged 20-24,  2026: 135 Forecast persons aged 15-19,  2026: 162 Forecast persons aged 10-14,  2026: 165 Forecast persons aged 5-9,  2026: 149 Forecast persons aged 0-4,  2026: 126 Forecast persons aged 85+,  2016: 29 Forecast persons aged 80-84,  2016: 42 Forecast persons aged 75-79,  2016: 39 Forecast persons aged 70-74,  2016: 130 Forecast persons aged 65-69,  2016: 181 Forecast persons aged 60-64,  2016: 174 Forecast persons aged 55-59,  2016: 197 Forecast persons aged 50-54,  2016: 159 Forecast persons aged 45-49,  2016: 174 Forecast persons aged 40-44,  2016: 188 Forecast persons aged 35-39,  2016: 148 Forecast persons aged 30-34,  2016: 93 Forecast persons aged 25-29,  2016: 90 Forecast persons aged 20-24,  2016: 144 Forecast persons aged 15-19,  2016: 160 Forecast persons aged 10-14,  2016: 169 Forecast persons aged 5-9,  2016: 151 Forecast persons aged 0-4,  2016: 139
Population and household forecasts, 2016 to 2036, prepared by .id the population experts, October 2017.
Forecast change in age structure - 5 year age groups
Forecast change in age structure - 5 year age groups Forecast persons aged 85+,  2026 to 2036: 41 Forecast persons aged 80-84,  2026 to 2036: 15 Forecast persons aged 75-79,  2026 to 2036: -9 Forecast persons aged 70-74,  2026 to 2036: -20 Forecast persons aged 65-69,  2026 to 2036: -18 Forecast persons aged 60-64,  2026 to 2036: 13 Forecast persons aged 55-59,  2026 to 2036: -9 Forecast persons aged 50-54,  2026 to 2036: -23 Forecast persons aged 45-49,  2026 to 2036: -7 Forecast persons aged 40-44,  2026 to 2036: 3 Forecast persons aged 35-39,  2026 to 2036: 2 Forecast persons aged 30-34,  2026 to 2036: 0 Forecast persons aged 25-29,  2026 to 2036: 2 Forecast persons aged 20-24,  2026 to 2036: -1 Forecast persons aged 15-19,  2026 to 2036: 1 Forecast persons aged 10-14,  2026 to 2036: -3 Forecast persons aged 5-9,  2026 to 2036: 0 Forecast persons aged 0-4,  2026 to 2036: 2 Forecast persons aged 85+,  2016 to 2026: -2 Forecast persons aged 80-84,  2016 to 2026: 34 Forecast persons aged 75-79,  2016 to 2026: 90 Forecast persons aged 70-74,  2016 to 2026: 9 Forecast persons aged 65-69,  2016 to 2026: -26 Forecast persons aged 60-64,  2016 to 2026: -35 Forecast persons aged 55-59,  2016 to 2026: -32 Forecast persons aged 50-54,  2016 to 2026: 20 Forecast persons aged 45-49,  2016 to 2026: -17 Forecast persons aged 40-44,  2016 to 2026: -44 Forecast persons aged 35-39,  2016 to 2026: -22 Forecast persons aged 30-34,  2016 to 2026: 3 Forecast persons aged 25-29,  2016 to 2026: -2 Forecast persons aged 20-24,  2016 to 2026: -10 Forecast persons aged 15-19,  2016 to 2026: 2 Forecast persons aged 10-14,  2016 to 2026: -4 Forecast persons aged 5-9,  2016 to 2026: -2 Forecast persons aged 0-4,  2016 to 2026: -13
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 Bonnet Bay was ages 55 to 59, which accounted for 8.2% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 75 to 79, which is expected to increase by 90 and account for 5.5% of the total persons.

The largest 5 year age group in 2026 is 50 to 54 years, with a total of 179 persons.

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