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Hornsby Shire CouncilPopulation forecast

Hornsby Shire Council

Population and age structure

Between 2021 and 2026, the age structure forecasts for Hornsby Shire Council indicate a 3.4% increase in males under working age, a 6.2% increase in males of retirement age, and a 6.9% 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 Hornsby Shire 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
Hornsby Shire Council - Total males202120262036Change between 2021 and 2036
Age group (years)Number%Number%Number%Number
0 to 44,0025.34,4135.54,5695.3+567
5 to 95,4777.35,2516.65,5076.4+30
10 to 145,6617.55,9907.55,9897.0+328
15 to 195,1206.85,6787.15,8736.9+753
20 to 244,4856.04,6645.95,2596.1+774
25 to 293,5164.73,8734.94,3195.0+803
30 to 343,7114.94,2765.44,7725.6+1,061
35 to 395,1706.95,4096.85,8826.9+713
40 to 445,5997.56,0797.66,3187.4+719
45 to 495,7057.65,9067.46,2717.3+566
50 to 545,1076.85,5667.05,9567.0+848
55 to 594,8506.54,9106.25,3886.3+538
60 to 644,2705.74,4445.64,7715.6+501
65 to 693,5474.73,7974.84,0244.7+477
70 to 743,1024.13,0863.93,4914.1+389
75 to 792,3783.22,6213.32,9233.4+545
80 to 841,6812.21,9512.52,2742.7+593
85 and over1,6132.21,6312.11,9662.3+353
Total persons74,994100.079,545100.085,553100.0+10,558
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), January 2023.

Key findings

In 2021, the dominant age structure for males in Hornsby Shire Council was ages 45 to 49, which accounted for 7.6% of the total males.

The largest increase in males between 2021 and 2026 is forecast to be in ages 30 to 34, which is expected to increase by 565 and account for 5.4% of the total males.

The largest male 5 year age group in 2026 is 40 to 44 years, with a total of 6,079 males.

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