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The Hills Shire CouncilPopulation forecast

The Hills Shire Council

Population and age structure

Between 2021 and 2030, the age structure forecasts for The Hills Shire Council indicate a 18.2% increase in females under working age, a 21.1% increase in females of retirement age, and a 18.8% 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 The Hills 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
The Hills Shire Council - Total females202120302031Change between 2021 and 2031
Age group (years)Number%Number%Number%Number
0 to 45,5405.77,2486.37,4316.3+1,891
5 to 97,2857.58,2367.18,4577.2+1,172
10 to 147,1537.48,1227.08,2307.0+1,077
15 to 196,3176.57,7956.77,9276.7+1,610
20 to 245,4765.66,2585.46,3315.4+855
25 to 294,3544.55,1994.55,3174.5+963
30 to 345,8096.06,8345.96,9795.9+1,169
35 to 398,2088.58,9937.89,1657.8+957
40 to 447,9738.29,3228.19,4618.0+1,488
45 to 497,2547.59,1647.99,2537.8+1,999
50 to 546,5076.77,8716.88,1446.9+1,637
55 to 595,5815.76,9396.06,9805.9+1,399
60 to 645,1025.35,9645.26,1965.3+1,094
65 to 694,6674.85,4014.75,4304.6+762
70 to 743,9934.14,5884.04,6513.9+658
75 to 792,6712.83,2312.83,3512.8+679
80 to 841,6531.72,3452.02,4512.1+798
85 and over1,5741.62,0681.82,1591.8+585
Total persons97,118100.0115,580100.0117,912100.0+20,794
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), January 2023.

Key findings

In 2021, the dominant age structure for females in The Hills Shire Council was ages 35 to 39, which accounted for 8.5% of the total females.

The largest increase in females between 2021 and 2030 is forecast to be in ages 45 to 49, which is expected to increase by 1,909 and account for 7.9% of the total females.

The largest female 5 year age group in 2030 is 40 to 44 years, with a total of 9,322 females.

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