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City of WhittleseaPopulation forecast

City of Whittlesea

Population and age structure

Between 2021 and 2031, the age structure forecasts for City of Whittlesea indicate a 21.2% increase in population under working age, a 60.9% increase in population of retirement age, and a 25.2% 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 Whittlesea 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 Whittlesea - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 417,0047.322,6417.627,0027.5+9,998
5 to 917,5747.620,1106.724,4676.8+6,893
10 to 1415,1746.517,5665.921,4435.9+6,269
15 to 1913,2735.717,6605.919,9295.5+6,656
20 to 2414,8536.419,0596.421,4405.9+6,587
25 to 2916,8997.321,5607.224,8856.9+7,986
30 to 3420,0158.623,3917.827,3407.6+7,324
35 to 3920,7318.922,4787.527,0277.5+6,296
40 to 4416,7907.221,1887.124,9126.9+8,121
45 to 4914,6206.319,7486.622,2986.2+7,678
50 to 5413,2765.717,1325.720,7985.8+7,522
55 to 5911,8875.115,4525.219,2425.3+7,355
60 to 6410,7074.613,9604.716,9784.7+6,271
65 to 699,0593.912,4604.215,5174.3+6,458
70 to 747,8543.411,0743.714,3924.0+6,537
75 to 795,2262.39,0103.012,5943.5+7,368
80 to 843,6191.67,0082.310,2272.8+6,609
85 and over3,2461.47,1042.410,2022.8+6,955
Total persons231,809100.0298,601100.0360,692100.0+128,883
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), January 2023.

Key findings

In 2021, the dominant age structure for persons in City of Whittlesea was ages 35 to 39, which accounted for 8.9% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 0 to 4, which is expected to increase by 5,637 and account for 7.6% of the total persons.

The largest 5 year age group in 2031 is 30 to 34 years, with a total of 23,391 persons.

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