Bayside CouncilPopulation forecast
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Bayside Council

Population and age structure

Between 2011 and 2026, the age structure forecasts for the Bayside Council indicate a 33.7% increase in population under working age, a 33.0% increase in population of retirement age, and a 43.7% 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 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 persons201120262036Change between 2011 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 9,5456.613,3536.613,5046.3+3,959
5 to 9 8,0495.610,7165.311,2185.3+3,169
10 to 14 7,4085.19,3634.69,8854.6+2,477
15 to 19 7,5855.210,2805.010,6665.0+3,081
20 to 24 10,2927.115,6737.715,5267.3+5,234
25 to 29 13,4089.221,58110.620,5829.6+7,174
30 to 34 12,3528.520,86610.220,1899.5+7,837
35 to 39 11,4407.917,0838.417,5668.2+6,126
40 to 44 10,3217.113,9686.915,0877.1+4,766
45 to 49 9,4876.512,0575.913,4666.3+3,979
50 to 54 8,6686.011,0115.412,1825.7+3,514
55 to 59 7,7775.410,1145.011,0425.2+3,265
60 to 64 7,2855.09,1154.59,9384.7+2,653
65 to 69 5,9064.17,7073.88,5944.0+2,688
70 to 74 4,9703.46,5923.27,5883.6+2,618
75 to 79 4,0942.85,7222.86,4713.0+2,377
80 to 84 3,2042.24,2282.15,0092.3+1,805
85 and over3,1942.24,1722.04,7812.2+1,587
Total persons144,985100.0203,600100.0213,291100.0+68,306

Population and household forecasts, 2011 to 2036, prepared by .id , the population experts, October 2016.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 4,781 Forecast persons aged 80-84,  2036: 5,009 Forecast persons aged 75-79,  2036: 6,471 Forecast persons aged 70-74,  2036: 7,588 Forecast persons aged 65-69,  2036: 8,594 Forecast persons aged 60-64,  2036: 9,938 Forecast persons aged 55-59,  2036: 11,042 Forecast persons aged 50-54,  2036: 12,182 Forecast persons aged 45-49,  2036: 13,466 Forecast persons aged 40-44,  2036: 15,087 Forecast persons aged 35-39,  2036: 17,566 Forecast persons aged 30-34,  2036: 20,189 Forecast persons aged 25-29,  2036: 20,582 Forecast persons aged 20-24,  2036: 15,526 Forecast persons aged 15-19,  2036: 10,666 Forecast persons aged 10-14,  2036: 9,885 Forecast persons aged 5-9,  2036: 11,218 Forecast persons aged 0-4,  2036: 13,504 Forecast persons aged 85+,  2026: 4,172 Forecast persons aged 80-84,  2026: 4,228 Forecast persons aged 75-79,  2026: 5,722 Forecast persons aged 70-74,  2026: 6,592 Forecast persons aged 65-69,  2026: 7,707 Forecast persons aged 60-64,  2026: 9,115 Forecast persons aged 55-59,  2026: 10,114 Forecast persons aged 50-54,  2026: 11,011 Forecast persons aged 45-49,  2026: 12,057 Forecast persons aged 40-44,  2026: 13,968 Forecast persons aged 35-39,  2026: 17,083 Forecast persons aged 30-34,  2026: 20,866 Forecast persons aged 25-29,  2026: 21,581 Forecast persons aged 20-24,  2026: 15,673 Forecast persons aged 15-19,  2026: 10,280 Forecast persons aged 10-14,  2026: 9,363 Forecast persons aged 5-9,  2026: 10,716 Forecast persons aged 0-4,  2026: 13,353 Forecast persons aged 85+,  2011: 3,194 Forecast persons aged 80-84,  2011: 3,204 Forecast persons aged 75-79,  2011: 4,094 Forecast persons aged 70-74,  2011: 4,970 Forecast persons aged 65-69,  2011: 5,906 Forecast persons aged 60-64,  2011: 7,285 Forecast persons aged 55-59,  2011: 7,777 Forecast persons aged 50-54,  2011: 8,668 Forecast persons aged 45-49,  2011: 9,487 Forecast persons aged 40-44,  2011: 10,321 Forecast persons aged 35-39,  2011: 11,440 Forecast persons aged 30-34,  2011: 12,352 Forecast persons aged 25-29,  2011: 13,408 Forecast persons aged 20-24,  2011: 10,292 Forecast persons aged 15-19,  2011: 7,585 Forecast persons aged 10-14,  2011: 7,408 Forecast persons aged 5-9,  2011: 8,049 Forecast persons aged 0-4,  2011: 9,545
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, October 2016.
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: 609 Forecast persons aged 80-84,  2026 to 2036: 781 Forecast persons aged 75-79,  2026 to 2036: 749 Forecast persons aged 70-74,  2026 to 2036: 996 Forecast persons aged 65-69,  2026 to 2036: 886 Forecast persons aged 60-64,  2026 to 2036: 823 Forecast persons aged 55-59,  2026 to 2036: 928 Forecast persons aged 50-54,  2026 to 2036: 1,171 Forecast persons aged 45-49,  2026 to 2036: 1,409 Forecast persons aged 40-44,  2026 to 2036: 1,119 Forecast persons aged 35-39,  2026 to 2036: 483 Forecast persons aged 30-34,  2026 to 2036: -677 Forecast persons aged 25-29,  2026 to 2036: -999 Forecast persons aged 20-24,  2026 to 2036: -147 Forecast persons aged 15-19,  2026 to 2036: 386 Forecast persons aged 10-14,  2026 to 2036: 521 Forecast persons aged 5-9,  2026 to 2036: 502 Forecast persons aged 0-4,  2026 to 2036: 151 Forecast persons aged 85+,  2011 to 2026: 978 Forecast persons aged 80-84,  2011 to 2026: 1,024 Forecast persons aged 75-79,  2011 to 2026: 1,628 Forecast persons aged 70-74,  2011 to 2026: 1,622 Forecast persons aged 65-69,  2011 to 2026: 1,801 Forecast persons aged 60-64,  2011 to 2026: 1,830 Forecast persons aged 55-59,  2011 to 2026: 2,337 Forecast persons aged 50-54,  2011 to 2026: 2,343 Forecast persons aged 45-49,  2011 to 2026: 2,570 Forecast persons aged 40-44,  2011 to 2026: 3,647 Forecast persons aged 35-39,  2011 to 2026: 5,643 Forecast persons aged 30-34,  2011 to 2026: 8,514 Forecast persons aged 25-29,  2011 to 2026: 8,173 Forecast persons aged 20-24,  2011 to 2026: 5,381 Forecast persons aged 15-19,  2011 to 2026: 2,695 Forecast persons aged 10-14,  2011 to 2026: 1,955 Forecast persons aged 5-9,  2011 to 2026: 2,667 Forecast persons aged 0-4,  2011 to 2026: 3,808
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, October 2016.

Key findings

In 2011, the dominant age structure for persons in the Bayside Council was ages 25 to 29 , which accounted for 9.2% of the total persons.

The largest increase in persons between 2011 and 2026 is forecast to be in ages 30 to 34 , which is expected to increase by 8,514 and account for 10.2% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 21,581 persons.

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