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City of AdelaidePopulation forecast

City of Adelaide

Population, households and dwellings

The number of dwellings in City of Adelaide is forecast to grow from 14,624 in 2021 to 21,594 in 2046, with the average household size falling from 1.79 to 1.78 by 2046.

This summary shows the results of the forecasts for population, households and dwellings in the City of Adelaide. The period 2021 to 2031, as the short to medium term, is likely to be the most accurate and useful forecast information for immediate planning purposes.

It is important to look at the relationship between population and average household size. If the average household size is falling, then there will need to be growth in the number of households (and dwellings for them to live in) to maintain or grow the population.

Forecast population, households and dwellings
City of AdelaideForecast year
Summary202120262031203620412046
Population25,47927,29829,70832,01033,91236,059
Change in population (5yrs)--1,8192,4102,3021,9022,147
Average annual change--1.39%1.71%1.50%1.16%1.24%
Households12,11112,88714,22015,51716,60117,827
Average household size1.791.791.791.791.781.78
Population in non private dwellings3,8234,1824,2654,3154,3444,381
Dwellings14,62415,55717,19218,78820,11021,594
Dwelling occupancy rate82.8282.8482.7182.5982.5582.56
Source: Population and household forecasts, 2021 to 2046, prepared by .id (informed decisions), December 2023.

Key findings

In 2021, the total population of City of Adelaide was estimated to be 25,479 people. It is expected to increase by over 4,229 people to 29,708 by 2031, at an average annual growth rate of 1.55%. This is based on an increase of over 2,109 households during the period, with the average number of persons per household remaining stable from 1.79 to 1.79 by 2031.

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