City of SydneyPopulation forecast
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City of Sydney

Population and age structure

Between 2011 and 2026, the age structure forecasts for the City of Sydney indicate a 77.3% increase in population under working age, a 62.5% increase in population of retirement age, and a 48.3% 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 Sydney 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 Sydney - Total persons201120262036Change between 2011 and 2036
Age group (years)Number%Number%Number%Number
0 to 4 6,3323.511,2324.013,3414.1+7,009
5 to 9 3,3961.96,3392.37,9152.4+4,519
10 to 14 2,8101.54,6571.75,9271.8+3,117
15 to 19 6,1963.417,2346.218,8705.8+12,674
20 to 24 23,46912.838,35213.841,48912.7+18,020
25 to 29 33,99218.543,95215.848,68214.9+14,689
30 to 34 27,15714.837,51013.543,12913.2+15,971
35 to 39 18,1689.926,8619.731,7279.7+13,559
40 to 44 13,3047.320,0077.223,5877.2+10,283
45 to 49 10,5025.715,7025.719,1875.9+8,686
50 to 54 9,1745.013,0214.716,4335.0+7,259
55 to 59 7,8854.310,8453.913,7224.2+5,837
60 to 64 6,8673.78,9223.211,2773.5+4,410
65 to 69 4,9332.77,2302.69,1442.8+4,211
70 to 74 3,4281.95,6972.17,3522.3+3,924
75 to 79 2,4771.44,4921.65,9861.8+3,509
80 to 84 1,7350.92,9201.14,3921.3+2,657
85 and over1,4560.82,4550.93,7371.1+2,281
Total persons183,281100.0277,427100.0325,897100.0+142,616

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

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2036: 3,737 Forecast persons aged 80-84,  2036: 4,392 Forecast persons aged 75-79,  2036: 5,986 Forecast persons aged 70-74,  2036: 7,352 Forecast persons aged 65-69,  2036: 9,144 Forecast persons aged 60-64,  2036: 11,277 Forecast persons aged 55-59,  2036: 13,722 Forecast persons aged 50-54,  2036: 16,433 Forecast persons aged 45-49,  2036: 19,187 Forecast persons aged 40-44,  2036: 23,587 Forecast persons aged 35-39,  2036: 31,727 Forecast persons aged 30-34,  2036: 43,129 Forecast persons aged 25-29,  2036: 48,682 Forecast persons aged 20-24,  2036: 41,489 Forecast persons aged 15-19,  2036: 18,870 Forecast persons aged 10-14,  2036: 5,927 Forecast persons aged 5-9,  2036: 7,915 Forecast persons aged 0-4,  2036: 13,341 Forecast persons aged 85+,  2026: 2,455 Forecast persons aged 80-84,  2026: 2,920 Forecast persons aged 75-79,  2026: 4,492 Forecast persons aged 70-74,  2026: 5,697 Forecast persons aged 65-69,  2026: 7,230 Forecast persons aged 60-64,  2026: 8,922 Forecast persons aged 55-59,  2026: 10,845 Forecast persons aged 50-54,  2026: 13,021 Forecast persons aged 45-49,  2026: 15,702 Forecast persons aged 40-44,  2026: 20,007 Forecast persons aged 35-39,  2026: 26,861 Forecast persons aged 30-34,  2026: 37,510 Forecast persons aged 25-29,  2026: 43,952 Forecast persons aged 20-24,  2026: 38,352 Forecast persons aged 15-19,  2026: 17,234 Forecast persons aged 10-14,  2026: 4,657 Forecast persons aged 5-9,  2026: 6,339 Forecast persons aged 0-4,  2026: 11,232 Forecast persons aged 85+,  2011: 1,456 Forecast persons aged 80-84,  2011: 1,735 Forecast persons aged 75-79,  2011: 2,477 Forecast persons aged 70-74,  2011: 3,428 Forecast persons aged 65-69,  2011: 4,933 Forecast persons aged 60-64,  2011: 6,867 Forecast persons aged 55-59,  2011: 7,885 Forecast persons aged 50-54,  2011: 9,174 Forecast persons aged 45-49,  2011: 10,502 Forecast persons aged 40-44,  2011: 13,304 Forecast persons aged 35-39,  2011: 18,168 Forecast persons aged 30-34,  2011: 27,157 Forecast persons aged 25-29,  2011: 33,992 Forecast persons aged 20-24,  2011: 23,469 Forecast persons aged 15-19,  2011: 6,196 Forecast persons aged 10-14,  2011: 2,810 Forecast persons aged 5-9,  2011: 3,396 Forecast persons aged 0-4,  2011: 6,332
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, December 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: 1,282 Forecast persons aged 80-84,  2026 to 2036: 1,472 Forecast persons aged 75-79,  2026 to 2036: 1,494 Forecast persons aged 70-74,  2026 to 2036: 1,655 Forecast persons aged 65-69,  2026 to 2036: 1,914 Forecast persons aged 60-64,  2026 to 2036: 2,355 Forecast persons aged 55-59,  2026 to 2036: 2,877 Forecast persons aged 50-54,  2026 to 2036: 3,412 Forecast persons aged 45-49,  2026 to 2036: 3,485 Forecast persons aged 40-44,  2026 to 2036: 3,580 Forecast persons aged 35-39,  2026 to 2036: 4,866 Forecast persons aged 30-34,  2026 to 2036: 5,619 Forecast persons aged 25-29,  2026 to 2036: 4,729 Forecast persons aged 20-24,  2026 to 2036: 3,137 Forecast persons aged 15-19,  2026 to 2036: 1,636 Forecast persons aged 10-14,  2026 to 2036: 1,270 Forecast persons aged 5-9,  2026 to 2036: 1,576 Forecast persons aged 0-4,  2026 to 2036: 2,109 Forecast persons aged 85+,  2011 to 2026: 999 Forecast persons aged 80-84,  2011 to 2026: 1,185 Forecast persons aged 75-79,  2011 to 2026: 2,015 Forecast persons aged 70-74,  2011 to 2026: 2,269 Forecast persons aged 65-69,  2011 to 2026: 2,297 Forecast persons aged 60-64,  2011 to 2026: 2,055 Forecast persons aged 55-59,  2011 to 2026: 2,960 Forecast persons aged 50-54,  2011 to 2026: 3,847 Forecast persons aged 45-49,  2011 to 2026: 5,200 Forecast persons aged 40-44,  2011 to 2026: 6,703 Forecast persons aged 35-39,  2011 to 2026: 8,693 Forecast persons aged 30-34,  2011 to 2026: 10,353 Forecast persons aged 25-29,  2011 to 2026: 9,960 Forecast persons aged 20-24,  2011 to 2026: 14,883 Forecast persons aged 15-19,  2011 to 2026: 11,038 Forecast persons aged 10-14,  2011 to 2026: 1,847 Forecast persons aged 5-9,  2011 to 2026: 2,943 Forecast persons aged 0-4,  2011 to 2026: 4,900
Population and household forecasts, 2011 to 2036, prepared by .id the population experts, December 2016.

Key findings

In 2011, the dominant age structure for persons in the City of Sydney was ages 25 to 29 , which accounted for 18.5% of the total persons.

The largest increase in persons between 2011 and 2026 is forecast to be in ages 20 to 24 , which is expected to increase by 14,883 and account for 13.8% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 43,952 persons.

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