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AustraliaPopulation forecast

Australian Capital Territory

Population and age structure

Between 2021 and 2031, the age structure forecasts for Australian Capital Territory indicate a 9.8% increase in females under working age, a 31.8% increase in females of retirement age, and a 15.0% 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 Australia 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.

Forecast age structure - 5 year age groups
Australian Capital Territory - Total females202120312041Change between 2021 and 2041
Age group (years)Number%Number%Number%Number
0 to 413,2155.815,6455.817,0195.6+3,804
5 to 914,2806.215,3035.716,3745.4+2,094
10 to 1413,2535.813,7955.216,2325.4+2,979
15 to 1913,0725.716,3466.117,4875.8+4,415
20 to 2417,3397.520,9367.821,7717.2+4,432
25 to 2919,7778.620,9037.824,6838.1+4,906
30 to 3419,5548.520,7987.823,7907.8+4,236
35 to 3918,8258.221,0447.921,5627.1+2,737
40 to 4416,0397.019,5457.320,5776.8+4,538
45 to 4914,6716.418,4686.920,5826.8+5,911
50 to 5413,3665.815,6185.819,0486.3+5,682
55 to 5912,1485.313,6475.117,4365.8+5,288
60 to 6411,0984.811,9494.514,1954.7+3,097
65 to 699,6504.210,8144.012,3634.1+2,713
70 to 748,9783.99,9883.710,9853.6+2,007
75 to 796,0922.78,7313.39,9563.3+3,864
80 to 844,1421.87,5782.88,6492.9+4,507
85 and over4,1921.86,4702.410,3533.4+6,161
Total persons229,691100.0267,579100.0303,063100.0+73,372
Source: .id SAFi National to State tops-down forecast, 5.1.0, published May 2023. Prepared by .id (informed decisions)

Key findings

In 2021, the dominant age structure for females in Australian Capital Territory was ages 25 to 29, which accounted for 8.6% of the total females.

The largest increase in females between 2021 and 2031 is forecast to be in ages 45 to 49, which is expected to increase by 3,797 and account for 6.9% of the total females.

The largest female 5 year age group in 2031 is 35 to 39 years, with a total of 21,044 females.

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