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City of BelmontPopulation forecast

Rivervale

Population and age structure

Between 2021 and 2031, the age structure forecasts for Rivervale indicate a 30.8% increase in population under working age, a 32.1% increase in population of retirement age, and a 14.6% 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 Belmont 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.

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Forecast age structure - 5 year age groups
Rivervale - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 46285.57185.38185.2+190
5 to 94954.46554.97214.6+226
10 to 144093.66314.77004.5+291
15 to 193343.08046.08625.5+528
20 to 249678.51,1748.71,2538.0+286
25 to 291,44712.81,44910.81,67410.7+227
30 to 341,51113.31,41910.61,69410.8+183
35 to 391,0939.71,0447.81,2998.3+206
40 to 447846.99987.41,0706.8+286
45 to 496165.41,0217.61,0676.8+451
50 to 545885.27405.58755.6+287
55 to 596075.45504.18155.2+208
60 to 645695.05594.27124.6+143
65 to 694333.84963.75603.6+127
70 to 743302.94523.44582.9+128
75 to 792171.93702.74592.9+242
80 to 841721.52171.63062.0+134
85 and over1191.11441.12861.8+167
Total persons11,319100.013,441100.015,630100.0+4,311
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), December 2023.

Key findings

In 2021, the dominant age structure for persons in Rivervale was ages 30 to 34, which accounted for 13.3% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 15 to 19, which is expected to increase by 470 and account for 6.0% of the total persons.

The largest 5 year age group in 2031 is 25 to 29 years, with a total of 1,449 persons.

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