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Wollondilly Shire CouncilPopulation forecast

Wollondilly Shire Council

Population and age structure

Between 2016 and 2031, the age structure forecasts for Wollondilly Shire Council indicate a 47.8% increase in females under working age, a 75.9% increase in females of retirement age, and a 50.2% increase in females 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 Wollondilly 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
Wollondilly Shire Council - Total females201620312041Change between 2016 and 2041
Age group (years)Number%Number%Number%Number
0 to 41,6846.82,6136.93,4586.9+1,774
5 to 91,9017.72,8527.53,8497.7+1,948
10 to 141,7847.22,4736.53,3966.8+1,611
15 to 191,6866.82,2295.92,9075.8+1,220
20 to 241,5506.22,1445.62,6135.2+1,063
25 to 291,4936.02,3276.12,8575.7+1,365
30 to 341,6126.52,7717.33,5277.0+1,915
35 to 391,5896.42,9897.93,9357.8+2,346
40 to 441,8507.52,9567.83,9767.9+2,126
45 to 491,7457.02,6817.13,7417.4+1,995
50 to 541,7016.92,2936.03,3516.7+1,650
55 to 591,6256.52,1325.62,8955.8+1,270
60 to 641,3895.61,8664.92,4164.8+1,027
65 to 691,1704.71,6124.22,0704.1+900
70 to 747563.01,3563.61,7163.4+960
75 to 795462.21,0892.91,4332.9+887
80 to 843511.47842.11,0912.2+740
85 and over3831.57982.11,0292.0+645
Total persons24,816100.037,964100.050,258100.0+25,442
Source: Population and household forecasts, 2016 to 2041, prepared by .id (informed decisions), August 2019.

Key findings

In 2016, the dominant age structure for females in Wollondilly Shire Council was ages 5 to 9, which accounted for 7.7% of the total females.

The largest increase in females between 2016 and 2031 is forecast to be in ages 35 to 39, which is expected to increase by 1,400 and account for 7.9% of the total females.

The largest female 5 year age group in 2031 is 35 to 39 years, with a total of 2,989 females.

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