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North Sydney CouncilPopulation forecast

North Sydney Council

Population and age structure

Between 2021 and 2026, the age structure forecasts for North Sydney Council indicate a 9.3% increase in males under working age, a 12.5% increase in males of retirement age, and a 7.1% 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 North Sydney 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
North Sydney Council - Total males202120262036Change between 2021 and 2036
Age group (years)Number%Number%Number%Number
0 to 41,7555.32,0585.82,1565.8+401
5 to 91,4644.51,4174.01,5904.2+126
10 to 141,2313.71,3913.91,4673.9+236
15 to 191,1043.41,3703.91,5244.1+420
20 to 241,6585.12,2236.32,4556.6+796
25 to 293,1129.53,70410.43,92310.5+811
30 to 343,91411.94,11711.64,36911.7+455
35 to 393,35310.23,3039.33,4519.2+98
40 to 442,5947.92,5757.22,5806.9-15
45 to 492,2246.82,1716.12,1395.7-85
50 to 541,9405.92,0415.71,9935.3+53
55 to 591,8005.51,8555.21,8985.1+99
60 to 641,6495.01,6464.61,7444.7+95
65 to 691,4344.41,4464.11,4864.0+51
70 to 741,4234.31,3043.71,3383.6-85
75 to 791,0923.31,2653.61,2243.3+132
80 to 846361.99522.71,0592.8+423
85 and over4511.47012.01,0452.8+595
Total persons32,834100.035,540100.037,440100.0+4,606
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), March 2024.

Key findings

In 2021, the dominant age structure for males in North Sydney Council was ages 30 to 34, which accounted for 11.9% of the total males.

The largest increase in males between 2021 and 2026 is forecast to be in ages 25 to 29, which is expected to increase by 592 and account for 10.4% of the total males.

The largest male 5 year age group in 2026 is 30 to 34 years, with a total of 4,117 males.

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