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Hume CityPopulation forecast

Sunbury

Population and age structure

Between 2021 and 2031, the age structure forecasts for Sunbury indicate a 67.1% increase in population under working age, a 47.1% increase in population of retirement age, and a 56.4% 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 Hume 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
Sunbury - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 42,3996.14,0676.66,3186.3+3,919
5 to 92,6176.74,3367.07,0937.0+4,477
10 to 142,5376.54,2166.87,4807.4+4,943
15 to 192,3926.14,0536.67,1377.1+4,745
20 to 242,4046.13,9146.46,6006.5+4,196
25 to 292,7216.94,0686.66,6246.6+3,903
30 to 342,9337.54,6497.67,2107.1+4,278
35 to 392,8257.24,9578.17,8347.8+5,010
40 to 442,4546.34,5077.37,5437.5+5,089
45 to 492,6536.84,1956.87,3317.3+4,678
50 to 542,6676.83,8616.36,9036.8+4,237
55 to 592,5646.53,3235.45,6835.6+3,120
60 to 642,2675.82,9374.84,6134.6+2,345
65 to 691,9244.92,5654.23,8273.8+1,903
70 to 741,5774.02,1113.43,1483.1+1,571
75 to 799792.51,5492.52,3342.3+1,355
80 to 846361.61,1241.81,6901.7+1,054
85 and over6401.61,1191.81,6951.7+1,055
Total persons39,189100.061,553100.0101,065100.0+61,876
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), May 2023.

Key findings

In 2021, the dominant age structure for persons in Sunbury was ages 30 to 34, which accounted for 7.5% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 35 to 39, which is expected to increase by 2,132 and account for 8.1% of the total persons.

The largest 5 year age group in 2031 is 35 to 39 years, with a total of 4,957 persons.

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