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Willoughby City CouncilPopulation forecast

Chatswood (CBD)

Population and age structure

Between 2016 and 2026, the age structure forecasts for Chatswood (CBD) indicate a 48.6% increase in population under working age, a 61.4% increase in population of retirement age, and a 33.6% 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 Chatswood (CBD) 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
Chatswood (CBD) - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 46496.79056.79346.2+284
5 to 94995.17425.57895.3+290
10 to 143473.65754.36654.4+318
15 to 195325.51,0267.61,1167.4+584
20 to 241,04010.71,3209.81,3809.2+340
25 to 291,21112.51,42510.61,51210.1+300
30 to 341,23312.71,50111.11,52910.2+296
35 to 399359.61,34410.01,3869.2+451
40 to 447267.51,1068.21,1958.0+468
45 to 495435.68206.11,0326.9+489
50 to 543964.14973.77294.9+332
55 to 593593.73132.34613.1+103
60 to 642842.93492.64002.7+116
65 to 692893.04123.13802.5+91
70 to 741821.93362.53872.6+205
75 to 791471.53002.24032.7+256
80 to 841651.72311.73392.3+174
85 and over1791.82742.03552.4+176
Total persons9,717100.013,476100.014,991100.0+5,274
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, November 2017.

Key findings

In 2016, the dominant age structure for persons in Chatswood (CBD) was ages 30 to 34, which accounted for 12.7% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 15 to 19, which is expected to increase by 494 and account for 7.6% of the total persons.

The largest 5 year age group in 2026 is 30 to 34 years, with a total of 1,501 persons.

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