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City of StonningtonPopulation forecast

Glen Iris

Population and age structure

Between 2021 and 2026, the age structure forecasts for Glen Iris indicate a 20.4% increase in population under working age, a 11.1% increase in population of retirement age, and a 14.3% 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 Stonnington 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
Glen Iris - Total persons202120262036Change between 2021 and 2036
Age group (years)Number%Number%Number%Number
0 to 43954.25415.05374.4+142
5 to 94174.45465.06265.2+209
10 to 145345.65344.96735.6+140
15 to 195545.96165.76645.5+110
20 to 247117.58407.78386.9+127
25 to 2994710.01,0039.21,0028.3+55
30 to 347998.48778.18697.2+70
35 to 397287.77767.17876.5+60
40 to 446286.68567.98757.2+247
45 to 495926.37757.11,0028.3+410
50 to 546476.86726.21,0008.3+353
55 to 595255.56275.87666.3+240
60 to 644444.74704.35534.6+108
65 to 694434.74113.84844.0+40
70 to 743683.93973.73863.2+18
75 to 792933.13162.93212.7+27
80 to 841741.82542.32872.4+113
85 and over2692.83413.14043.3+135
Total persons9,467100.010,852100.012,073100.0+2,606
Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), May 2023.

Key findings

In 2021, the dominant age structure for persons in Glen Iris was ages 25 to 29, which accounted for 10.0% of the total persons.

The largest increase in persons between 2021 and 2026 is forecast to be in ages 40 to 44, which is expected to increase by 228 and account for 7.9% of the total persons.

The largest 5 year age group in 2026 is 25 to 29 years, with a total of 1,003 persons.

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