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City of GosnellsPopulation forecast

Gosnells (Balance)

Population and age structure

Between 2021 and 2031, the age structure forecasts for Gosnells (Balance) indicate a 26.3% decrease in females under working age, a 166.3% increase in females of retirement age, and a 5.3% 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 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
Gosnells (Balance) - Total females202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 42727.42135.22935.4+20
5 to 93188.71954.72725.0-46
10 to 143128.52576.23055.6-7
15 to 192005.52897.03266.0+126
20 to 242386.52626.43316.1+94
25 to 292587.02636.43897.1+132
30 to 342978.12616.33857.0+88
35 to 392948.02566.23676.7+73
40 to 442657.22947.13576.5+92
45 to 492286.22907.03396.2+111
50 to 542236.12315.63135.7+90
55 to 592516.82125.13065.6+55
60 to 641754.81994.82805.1+106
65 to 691734.72014.92394.4+66
70 to 741103.02034.92404.4+130
75 to 79230.61984.82554.7+232
80 to 84320.91563.82224.1+190
85 and over00.01423.42444.5+244
Total persons3,670100.04,121100.05,465100.0+1,795
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), February 2024.

Key findings

In 2021, the dominant age structure for females in Gosnells (Balance) was ages 5 to 9, which accounted for 8.7% of the total females.

The largest increase in females between 2021 and 2031 is forecast to be in ages 75 to 79, which is expected to increase by 175 and account for 4.8% of the total females.

The largest female 5 year age group in 2031 is 40 to 44 years, with a total of 294 females.

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