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City of GosnellsPopulation forecast

City of Gosnells

Population and age structure

Between 2016 and 2026, the age structure forecasts for City of Gosnells indicate a 20.5% increase in population under working age, a 40.5% increase in population of retirement age, and a 17.7% 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 the City of Gosnells 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
City of Gosnells - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 49,2167.510,8427.312,0827.1+2,866
5 to 98,6627.110,2917.011,6846.9+3,022
10 to 147,6526.39,6296.510,9836.5+3,331
15 to 197,9556.59,6706.511,0296.5+3,074
20 to 248,8517.210,7297.312,2927.2+3,441
25 to 299,7968.011,8918.113,4477.9+3,651
30 to 3410,6978.811,8198.013,4117.9+2,714
35 to 399,3887.710,9227.412,5227.4+3,134
40 to 448,5937.010,0606.811,3606.7+2,767
45 to 497,9596.59,3096.310,5386.2+2,579
50 to 547,2135.98,6065.89,6875.7+2,474
55 to 596,3665.27,6845.28,7195.1+2,353
60 to 645,8634.86,6454.57,7764.6+1,913
65 to 695,0144.15,7373.96,8524.0+1,838
70 to 743,3662.85,0843.45,9413.5+2,575
75 to 792,5142.14,0882.84,9302.9+2,416
80 to 841,5941.32,5051.73,6892.2+2,095
85 and over1,4291.22,1431.53,1061.8+1,677
Total persons122,128100.0147,653100.0170,048100.0+47,920
Source: Population and household forecasts, 2016 to 2036, prepared by .id (informed decisions), August 2017.

Key findings

In 2016, the dominant age structure for persons in City of Gosnells was ages 30 to 34, which accounted for 8.8% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 25 to 29, which is expected to increase by 2,095 and account for 8.1% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 11,891 persons.

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