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City of Port PhillipPopulation forecast

Sandridge Precinct

Population and age structure

Between 2021 and 2026, the age structure forecasts for Sandridge Precinct indicate a 213.6% increase in males under working age, a 2366.7% increase in males of retirement age, and a 144.6% increase 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 City of Port Phillip 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
Sandridge Precinct - Total males202120262041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 4102.3413.73414.4+331
5 to 940.9151.41562.0+152
10 to 1481.9131.21151.5+107
15 to 1951.2464.12593.3+254
20 to 245212.213411.977910.0+727
25 to 2911927.922319.81,32617.0+1,207
30 to 349422.121819.41,33317.1+1,239
35 to 394811.312811.489811.5+850
40 to 44255.9645.75066.5+481
45 to 49235.4504.53834.9+360
50 to 54194.5484.33494.5+330
55 to 59163.8423.73194.1+303
60 to 6400.0282.42363.0+236
65 to 6910.2222.02292.9+228
70 to 7400.0201.82192.8+219
75 to 7920.5151.31762.3+174
80 to 8400.0100.91111.4+111
85 and over00.070.7791.0+79
Total persons426100.01,126100.07,816100.0+7,390
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), November 2022.

Key findings

In 2021, the dominant age structure for males in Sandridge Precinct was ages 25 to 29, which accounted for 27.9% of the total males.

The largest increase in males between 2021 and 2026 is forecast to be in ages 30 to 34, which is expected to increase by 124 and account for 19.4% of the total males.

The largest male 5 year age group in 2026 is 25 to 29 years, with a total of 223 males.

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