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City of PlayfordPopulation forecast

City of Playford

Population and age structure

Between 2021 and 2031, the age structure forecasts for City of Playford indicate a 19.1% increase in population under working age, a 42.3% increase in population of retirement age, and a 35.2% 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 Playford 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 Playford - Total persons202120312046Change between 2021 and 2046
Age group (years)Number%Number%Number%Number
0 to 47,7417.79,1816.912,5716.8+4,830
5 to 98,0928.09,2546.912,0686.6+3,976
10 to 147,4987.59,3557.011,5246.3+4,026
15 to 196,2936.39,5467.211,3346.2+5,041
20 to 247,2117.29,6557.212,1716.6+4,960
25 to 298,2948.29,4587.113,3707.3+5,077
30 to 347,8847.810,1077.614,2307.7+6,346
35 to 397,1757.110,6358.014,2357.7+7,060
40 to 445,6835.69,3987.112,1056.6+6,422
45 to 495,6455.68,8476.612,0726.6+6,426
50 to 545,7625.77,1465.411,8376.4+6,075
55 to 595,8105.86,6495.010,5775.8+4,767
60 to 645,0985.16,2734.79,2925.1+4,194
65 to 693,9183.95,6684.36,9163.8+2,998
70 to 743,2233.24,5353.45,8543.2+2,631
75 to 792,1712.23,3622.55,1902.8+3,020
80 to 841,6221.62,3751.84,2012.3+2,579
85 and over1,5031.51,7631.34,3462.4+2,842
Total persons100,625100.0133,206100.0183,894100.0+83,269
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 City of Playford was ages 25 to 29, which accounted for 8.2% of the total persons.

The largest increase in persons between 2021 and 2031 is forecast to be in ages 40 to 44, which is expected to increase by 3,715 and account for 7.1% of the total persons.

The largest 5 year age group in 2031 is 35 to 39 years, with a total of 10,635 persons.

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