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City of BaysidePopulation forecast

City of Bayside

Population and age structure

Between 2016 and 2026, the age structure forecasts for City of Bayside indicate a 4.5% increase in population under working age, a 20.8% increase in population of retirement age, and a 10.3% 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 the City of Bayside 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
City of Bayside - Total persons201620262041Change between 2016 and 2041
Age group (years)Number%Number%Number%Number
0 to 45,5575.46,1305.46,8055.3+1,248
5 to 96,9896.87,0666.27,7776.1+788
10 to 147,0796.97,3136.48,0356.3+956
15 to 196,4336.37,3136.47,7576.1+1,324
20 to 245,5495.46,2215.46,7005.2+1,151
25 to 294,4684.35,2364.65,8144.5+1,346
30 to 344,8064.75,6645.06,3094.9+1,503
35 to 395,6605.56,6895.87,4575.8+1,797
40 to 447,5587.37,7376.88,5916.7+1,033
45 to 498,5838.38,0917.19,0747.1+491
50 to 547,8377.68,3377.38,8366.9+999
55 to 597,1627.08,1827.28,3236.5+1,161
60 to 645,9865.87,1786.37,6115.9+1,625
65 to 695,6285.56,4035.67,2155.6+1,587
70 to 744,4444.35,3814.76,7255.2+2,281
75 to 793,0883.04,6254.05,7394.5+2,651
80 to 842,3682.33,2982.94,5893.6+2,221
85 and over3,7173.63,5333.14,8103.8+1,093
Total persons102,912100.0114,397100.0128,169100.0+25,257
Source: Population and household forecasts, 2016 to 2041, prepared by .id (informed decisions), August 2020.

Key findings

In 2016, the dominant age structure for persons in City of Bayside was ages 45 to 49, which accounted for 8.3% 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 1,537 and account for 4.0% of the total persons.

The largest 5 year age group in 2026 is 50 to 54 years, with a total of 8,337 persons.

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