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City of AdelaidePopulation forecast

City of Adelaide

Population and age structure

Between 2016 and 2031, the age structure forecasts for the City of Adelaide indicate a 36.3% increase in females under working age, a 66.5% increase in females of retirement age, and a 70.8% increase in females 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 Adelaide 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
City of Adelaide - Total females201620312041Change between 2016 and 2041
Age group (years)Number%Number%Number%Number
0 to 43032.63842.04722.0+169
5 to 92111.82751.43411.4+130
10 to 141881.62981.63821.6+194
15 to 199268.12,64313.73,18813.2+2,262
20 to 242,53322.14,40922.95,45122.6+2,918
25 to 291,57313.72,43312.63,09212.8+1,519
30 to 341,0178.91,5087.81,9167.9+899
35 to 396105.39685.01,2145.0+604
40 to 444513.97043.78893.7+438
45 to 494584.06803.58433.5+385
50 to 545474.87503.99403.9+393
55 to 595044.47784.09834.1+479
60 to 645264.67453.99343.9+408
65 to 695624.97483.99423.9+380
70 to 743663.26453.48653.6+499
75 to 792652.35222.76932.9+428
80 to 841471.33631.94752.0+328
85 and over2562.23802.05192.2+263
Total persons11,443100.019,234100.024,140100.0+12,697
Source: Population and household forecasts, 2016 to 2041, prepared by .id (informed decisions), July 2021.

Key findings

In 2016, the dominant age structure for females in the City of Adelaide was ages 20 to 24, which accounted for 22.1% of the total females.

The largest increase in females between 2016 and 2031 is forecast to be in ages 20 to 24, which is expected to increase by 1,876 and account for 22.9% of the total females.

The largest female 5 year age group in 2031 is 20 to 24 years, with a total of 4,409 females.

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