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City of Port PhillipPopulation forecast

City of Port Phillip

Population and age structure

Between 2021 and 2026, the age structure forecasts for City of Port Phillip indicate a 9.6% increase in females under working age, a 31.9% increase in females of retirement age, and a 22.7% 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 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
City of Port Phillip - Total females202120262041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 42,1574.12,6274.13,6104.2+1,453
5 to 91,9063.61,9223.02,5643.0+658
10 to 141,8453.51,9253.02,2132.6+368
15 to 191,6543.12,5273.93,0353.5+1,381
20 to 243,0305.75,2408.16,9678.1+3,938
25 to 296,14411.68,39313.011,32813.1+5,185
30 to 346,22211.87,69411.910,50312.2+4,281
35 to 395,32110.15,5658.67,5578.8+2,236
40 to 444,0477.74,6397.25,7806.7+1,733
45 to 493,8517.34,0876.35,2076.0+1,357
50 to 543,6576.93,8816.04,8735.6+1,216
55 to 593,1015.93,6875.74,6235.4+1,521
60 to 642,7165.13,0374.74,0094.6+1,293
65 to 692,1474.12,6244.13,5794.1+1,432
70 to 741,9683.72,1653.43,2773.8+1,309
75 to 791,2932.51,8922.92,7043.1+1,411
80 to 848751.71,2962.02,2412.6+1,366
85 and over8461.61,4262.22,2572.6+1,411
Total persons52,780100.064,628100.086,328100.0+33,548
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 City of Port Phillip was ages 30 to 34, which accounted for 11.8% of the total females.

The largest increase in females between 2021 and 2026 is forecast to be in ages 25 to 29, which is expected to increase by 2,249 and account for 13.0% of the total females.

The largest female 5 year age group in 2026 is 25 to 29 years, with a total of 8,393 females.

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