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City of BaysidePopulation forecast

Highett

Population and age structure

Between 2021 and 2031, the age structure forecasts for Highett indicate a 24.7% increase in population under working age, a 46.8% increase in population of retirement age, and a 30.8% 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 Bayside 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
Highett - Total persons202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 45336.67417.07886.7+255
5 to 95897.37036.67826.6+193
10 to 145296.66145.87296.2+200
15 to 194705.86095.76835.8+212
20 to 243984.95565.25905.0+192
25 to 294045.05955.66135.2+209
30 to 345476.87276.97486.3+201
35 to 395897.38097.68537.2+264
40 to 446968.78608.19347.9+238
45 to 497048.88327.99377.9+233
50 to 546448.07627.28627.3+218
55 to 594705.86436.17256.1+255
60 to 643744.75365.16135.2+239
65 to 693083.84274.05344.5+227
70 to 743123.93703.54744.0+162
75 to 792122.62932.83763.2+163
80 to 84991.22412.32852.4+186
85 and over1642.02772.63202.7+156
Total persons8,044100.010,594100.011,846100.0+3,802
Source: Population and household forecasts, 2021 to 2041, prepared by .id (informed decisions), February 2024.

Key findings

In 2021, the dominant age structure for persons in Highett was ages 45 to 49, which accounted for 8.8% 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 220 and account for 7.6% of the total persons.

The largest 5 year age group in 2031 is 40 to 44 years, with a total of 860 persons.

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