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Hobsons Bay CityPopulation forecast

Altona North

Population and age structure

Between 2021 and 2026, the age structure forecasts for Altona North indicate a 33.7% increase in females under working age, a 6.3% decrease in females of retirement age, and a 40.8% 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 Hobsons Bay City 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
Altona North - Total females202120262041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 45167.66737.61,0657.9+549
5 to 94506.66197.09727.2+522
10 to 144086.05456.28806.5+471
15 to 192964.34535.27625.7+467
20 to 243174.74725.47505.6+433
25 to 294596.77368.49797.3+520
30 to 345728.48609.81,2039.0+630
35 to 395458.08379.51,2619.4+716
40 to 445047.47088.01,1838.8+679
45 to 493995.95296.01,0227.6+622
50 to 543685.44014.68086.0+440
55 to 592453.63383.85814.3+337
60 to 642623.92512.94423.3+179
65 to 692603.82512.93462.6+86
70 to 742663.92623.03242.4+59
75 to 793104.52502.82632.0-47
80 to 842914.32853.22672.0-24
85 and over3455.13313.83232.4-22
Total persons6,813100.08,802100.013,432100.0+6,619
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), November 2022.

Key findings

In 2021, the dominant age structure for females in Altona North was ages 30 to 34, which accounted for 8.4% of the total females.

The largest increase in females between 2021 and 2026 is forecast to be in ages 35 to 39, which is expected to increase by 292 and account for 9.5% of the total females.

The largest female 5 year age group in 2026 is 30 to 34 years, with a total of 860 females.

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