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City of Glen EiraPopulation forecast

Bentleigh

Population and age structure

Between 2021 and 2030, the age structure forecasts for Bentleigh indicate a 10.9% increase in population under working age, a 11.2% increase in population of retirement age, and a 9.6% 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 Glen Eira 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
Bentleigh - Total persons202120302036Change between 2021 and 2036
Age group (years)Number%Number%Number%Number
0 to 49645.11,2516.11,2835.9+319
5 to 91,1616.21,2255.91,2916.0+130
10 to 141,2456.61,2616.11,3486.2+103
15 to 191,1256.01,2346.01,2375.7+112
20 to 241,1306.01,2165.91,2465.8+116
25 to 291,1406.11,2075.91,2595.8+118
30 to 341,2076.41,3646.61,3856.4+178
35 to 391,4087.51,5127.31,5607.2+152
40 to 441,3277.11,5747.61,6297.5+302
45 to 491,4207.61,5517.51,6037.4+183
50 to 541,3907.41,3716.71,5197.0+128
55 to 591,1966.41,3506.51,3326.2+137
60 to 641,0415.61,1915.81,2255.7+184
65 to 698414.59954.81,0845.0+243
70 to 746853.78224.09084.2+222
75 to 795362.96583.27573.5+221
80 to 844142.24942.45392.5+124
85 and over4992.73391.63781.8-121
Total persons18,731100.020,615100.021,583100.0+2,852
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), January 2023.

Key findings

In 2021, the dominant age structure for persons in Bentleigh was ages 45 to 49, which accounted for 7.6% of the total persons.

The largest increase in persons between 2021 and 2030 is forecast to be in ages 0 to 4, which is expected to increase by 287 and account for 6.1% of the total persons.

The largest 5 year age group in 2030 is 40 to 44 years, with a total of 1,574 persons.

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