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City of GosnellsPopulation forecast

Thornlie (West)

Population and age structure

Between 2016 and 2026, the age structure forecasts for Thornlie (West) indicate a NaN% stable trend in males under working age, a NaN% stable trend in males of retirement age, and a NaN% stable trend 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 Thornlie (West) 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 - Service age groups
Thornlie (West) - Total males201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
Babies and pre-schoolers (0 to 4)2486.52727.12626.9+14
Primary schoolers (5 to 11)3669.63489.13368.8-30
Secondary schoolers (12 to 17)3098.13148.23058.0-4
Tertiary education and independence (18 to 24)40210.53709.63589.4-44
Young workforce (25 to 34)52013.648612.747412.4-46
Parents and homebuilders (35 to 49)76520.074519.472018.9-45
Older workers and pre-retirees (50 to 59)51613.544211.542411.1-92
Empty nesters and retirees (60 to 69)41310.839810.33689.7-45
Seniors (70 to 84)2265.940210.546712.3+241
Elderly aged (85 and over)521.4641.7932.4+41
Total persons3,817100.03,841100.03,807100.0-10
Population and household forecasts, 2016 to 2036, prepared by .id , the population experts, April 2018.

Key findings

In 2016, the dominant age structure for males in Thornlie (West) was ages Parents and homebuilders (35 to 49), which accounted for 20.0% of the total males.

The largest increase in males between 2016 and 2026 is forecast to be in ages Seniors (70 to 84), which is expected to increase by 176 and account for 10.5% of the total males.

The largest male 5 year age group in 2026 is Parents and homebuilders (35 to 49) years, with a total of 745 males.

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