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City of SydneyPopulation forecast

City of Sydney

Population and age structure

Between 2021 and 2031, the age structure forecasts for City of Sydney indicate a 33.1% increase in males under working age, a 25.9% increase in males of retirement age, and a 31.7% increase in males 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 males202120312032Change between 2021 and 2032
Age group (years)Number%Number%Number%Number
0 to 43,8913.45,5053.75,5573.7+1,666
5 to 92,4252.13,1442.13,2062.1+781
10 to 141,9971.82,4141.62,4801.6+483
15 to 192,6582.35,6023.85,6323.7+2,974
20 to 2410,9139.615,41410.415,49210.3+4,579
25 to 2917,90315.822,42415.122,57715.0+4,674
30 to 3418,28316.122,25115.022,40314.9+4,120
35 to 3913,09811.617,54511.817,71711.8+4,619
40 to 448,8567.813,1278.813,3068.8+4,450
45 to 496,8266.09,6536.59,8826.6+3,056
50 to 546,2235.57,4565.07,6585.1+1,435
55 to 595,4564.86,0964.16,1594.1+703
60 to 644,4313.95,0823.45,1673.4+736
65 to 693,3873.04,1322.84,1152.7+728
70 to 743,0222.73,2312.23,3272.2+305
75 to 791,8581.62,3221.62,3841.6+526
80 to 841,1821.01,8711.31,8601.2+678
85 and over8280.71,3870.91,4511.0+623
Total persons113,237100.0148,655100.0150,373100.0+37,136
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), November 2022.

Key findings

In 2021, the dominant age structure for males in City of Sydney was ages 30 to 34, which accounted for 16.1% of the total males.

The largest increase in males between 2021 and 2031 is forecast to be in ages 25 to 29, which is expected to increase by 4,521 and account for 15.1% of the total males.

The largest male 5 year age group in 2031 is 25 to 29 years, with a total of 22,424 males.

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