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City of KnoxPopulation forecast

Boronia

Population and age structure

Between 2021 and 2031, the age structure forecasts for Boronia indicate a 7.6% decrease in males under working age, a 6.1% increase in males of retirement age, and a 9.6% 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 the City of Knox 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 - Service age groups
Boronia - Total males202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
Babies and pre-schoolers (0 to 4)7256.26895.66975.4-28
Primary schoolers (5 to 11)9848.48697.08816.9-103
Secondary schoolers (12 to 17)7436.47816.37706.0+28
Tertiary education and independence (18 to 24)8957.71,0338.41,0147.9+118
Young workforce (25 to 34)1,86116.01,93115.61,97215.4+111
Parents and homebuilders (35 to 49)2,59022.22,89223.42,97523.2+385
Older workers and pre-retirees (50 to 59)1,33211.41,47812.01,63212.7+300
Empty nesters and retirees (60 to 69)1,1399.81,1299.11,27810.0+139
Seniors (70 to 84)1,1529.91,2149.81,2429.7+89
Elderly aged (85 and over)2432.13382.73622.8+119
Total persons11,664100.012,354100.012,823100.0+1,159
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), June 2023.

Key findings

In 2021, the dominant age structure for males in Boronia was ages Parents and homebuilders (35 to 49), which accounted for 22.2% of the total males.

The largest increase in males between 2021 and 2031 is forecast to be in ages Parents and homebuilders (35 to 49), which is expected to increase by 302 and account for 23.4% of the total males.

The largest male 5 year age group in 2031 is Parents and homebuilders (35 to 49) years, with a total of 2,892 males.

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