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Bayside CouncilPopulation forecast

Bayside Council

Population and age structure

Between 2016 and 2026, the age structure forecasts for Bayside Council indicate a 24.4% increase in population under working age, a 19.5% increase in population of retirement age, and a 26.6% 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 Bayside 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
Bayside Council - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 410,1196.213,3766.613,4466.3+3,327
5 to 99,0095.510,8665.311,2295.3+2,220
10 to 147,8174.89,2654.69,9644.7+2,147
15 to 198,5585.310,3355.110,7495.1+2,191
20 to 2412,3517.615,4747.615,3267.2+2,975
25 to 2915,7259.721,17210.420,2709.5+4,545
30 to 3414,9389.220,47310.119,8789.3+4,940
35 to 3912,0697.416,8658.317,3758.2+5,306
40 to 4411,2596.914,0086.915,0147.1+3,755
45 to 4910,3166.411,9425.913,4586.3+3,142
50 to 549,7026.011,0515.412,2725.8+2,570
55 to 598,6235.310,2725.111,0105.2+2,387
60 to 647,7224.89,3074.69,9884.7+2,266
65 to 696,9684.37,7973.88,7384.1+1,770
70 to 745,5343.46,7623.37,7703.7+2,236
75 to 794,5552.85,8942.96,5413.1+1,986
80 to 843,4192.14,2642.15,0682.4+1,649
85 and over3,6742.34,1362.04,7402.2+1,067
Total persons162,358100.0203,258100.0212,836100.0+50,478
Source: Population and household forecasts, 2016 to 2036, prepared by .id (informed decisions), November 2017.

Key findings

In 2016, the dominant age structure for persons in Bayside Council was ages 25 to 29, which accounted for 9.7% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 30 to 34, which is expected to increase by 5,535 and account for 10.1% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 21,172 persons.

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